Construction products: Assessment of release of dangerous substances - Analysis of inorganic substances in digests and eluates - Analysis by Inductively Coupled Plasma - Optical Emission Spectrometry (ICP-OES)

This Technical Specification specifies the method for the determination of major, minor and trace elements in aqua regia and nitric acid digests and in eluates of construction products by Inductively Coupled Plasma - Optical Emission Spectrometry (ICP-OES). It refers to the following 44 elements: Aluminium (Al), antimony (Sb), arsenic (As), barium (Ba), beryllium (Be), bismuth (Bi), boron (B), cadmium (Cd), calcium (Ca), cerium (Ce), chromium (Cr), cobalt (Co), copper (Cu), iron (Fe), lanthanum (La), lead (Pb), lithium (Li), magnesium (Mg), manganese (Mn), mercury (Hg), molybdenum (Mo), neodymium (Nd), nickel (Ni), phosphorus (P), potassium (K), praseodymium (Pr), samarium (Sm), scandium (Sc), selenium (Se), silicon (Si), silver (Ag), sodium (Na), strontium (Sr), sulphur (S), tellurium (Te), thallium (Tl), thorium (Th), tin (Sn), titanium (Ti), tungsten (W), uranium (U), vanadium (V), zinc (Zn), and zirconium (Zr).
For the determination of low levels of As, Se and Sb, hydride generation may be applied. This method is described in Annex D.
NOTE   Construction products include e.g. mineral-based products (S); bituminous products (B); metals (M); wood-based products (W); plastics and rubbers (P); sealants and adhesives (A); paints and coatings (C), see also CEN/TR 16045 [1].
The method in this Technical Specification is applicable to construction products and validated for the product types listed in Annex D.

Bauprodukte - Beurteilung der Freisetzung von gefährlichen Stoffen - Analyse von anorganischen Stoffen in Aufschlusslösungen und Eluaten - Analyse mit induktiv gekoppeltem Plasma - Optische Emissionsspektralanalyse (ICP-OES)

Diese Technische Spezifikation legt die Verfahren zur Bestimmung der Hauptelemente, Nebenelemente und Spurenelemente in Königswasser- und Salpetersäure-Aufschlusslösungen sowie in Eluaten von Bauprodukten mittels optischer Emissionsspektrometrie mit induktiv gekoppeltem Plasma (ICP-OES) fest. Sie bezieht sich auf die folgenden 44 Elemente:
Aluminium (Al), Antimon (Sb), Arsen (As), Barium (Ba), Beryllium (Be), Bismut (Bi), Blei (Pb), Bor (B), Cadmium (Cd), Calcium (Ca), Cer (Ce), Chrom (Cr), Eisen (Fe), Kalium (K), Kobalt (Co), Kupfer (Cu), Lanthan (La), Lithium (Li), Magnesium (Mg), Mangan (Mn), Molybdän (Mo), Natrium (Na), Neodym (Nd), Nickel (Ni), Phosphor (P), Praseodym (Pr), Quecksilber (Hg), Samarium (Sm), Scandium (Sc), Schwefel (S), Selen (Se), Silber (Ag), Silicium (Si), Strontium (Sr), Tellur (Te), Thallium (Tl), Thorium (Th), Titan (Ti), Uran (U), Vanadium (V), Wolfram (W), Zink (Zn), Zinn (Sn) und Zirconium (Zr).
Zur Bestimmung geringer Gehalte von As, Se und Sb kann die Hydridbildung verwendet werden. Dieses Verfahren wird in Anhang D beschrieben.
ANMERKUNG Bauprodukte umfassen z. B. mineralische Produkte (S); bituminöse Produkte (B); Metalle (M); Holzprodukte (W); Kunststoff und Gummi (P); Dichtstoffe und Kleber (A); Farben und Beschichtungen (C), siehe auch CEN/TR 16045 [1].
Das Verfahren in dieser Technischen Spezifikation ist für Bauprodukte anwendbar und für die in Anhang D aufgeführten Produkttypen validiert.

Produits de construction - Évaluation des émissions de substances dangereuses - Analyse des substances inorganiques dans les digestats et les éluats - Partie 1: Analyse par plasma inductif couplé – Spectrométrie d'émission optique (ICP‐OES)

Gradbeni proizvodi - Ocenjevanje sproščanja nevarnih snovi - Analiza anorganskih snovi po razklopu in v izlužkih - Analiza z optično emisijsko spektrometrijo z induktivno sklopljeno plazmo (ICP/OES) (vključno s popravkom AC)

Ta tehnična specifikacija opisuje metodo za določanje glavnih in stranskih elementov ter elementov v sledovih v zlatotopki in izvlečku dušikove kisline ter v izlužkih gradbenih proizvodov z optično emisijsko spektrometrijo z induktivno sklopljeno plazmo (ICP/OES). Sklicuje se na naslednjih 44 elementov: aluminij (Al), antimon (Sb), arzen(As), barij (Ba), berilij(Be), bizmut (Bi), bor (B), kadmij (Cd), kalcij (Ca), cerij (Ce), krom (Cr), kobalt (Co), baker (Cu), železo (Fe), lantan (La), svinec (Pb), litij (Li), magnezij (Mg), mangan (Mn), živo srebro (Hg), molibden (Mo), neodim (Nd), nikelj (Ni), fosfor (P), kalij (K), prazeodim (Pr), samarij (Sm), skandij (Sc), selen (Se), silicij (Si), srebro (Ag), natrij (Na), stroncij (Sr), žveplo (S), telurij (Te), talij (Tl), torij (Th), kositer (Sn), titan (Ti), volfram (W), uran (U), vanadij (V), cink (Zn) in cirkonij (Zr).
Za določanje nizke ravni As, Se in Sb se lahko uporabi hidridna metoda. Ta metoda je opisana v dodatku D.
OPOMBA:   Gradbeni proizvodi vključujejo npr. mineralne proizvode (S); bitumenske proizvode (B); kovine (M); lesne proizvode (W); plastične mase in gume (P); tesnila in lepila (A); barve in premaze (C), glej tudi CEN/TR 16045 [1].
Metoda v tej tehnični specifikaciji se uporablja pri gradbenih proizvodih in je potrjena za vrste proizvodov, navedene v dodatku D.

General Information

Status
Published
Publication Date
08-Jan-2019
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
05-Dec-2018
Due Date
09-Feb-2019
Completion Date
09-Jan-2019

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SLOVENSKI STANDARD
SIST-TS CEN/TS 17197:2019+AC:2019
01-februar-2019
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Construction products: Assessment of release of dangerous substances - Analysis of

inorganic substances in digests and eluates - Analysis by Inductively Coupled Plasma -

Optical Emission Spectrometry (ICP-OES)
Bauprodukte - Beurteilung der Freisetzung von gefährlichen Stoffen - Analyse von
anorganischen Stoffen in Aufschlusslösungen und Eluaten - Analyse mit induktiv
gekoppeltem Plasma - Optische Emissionsspektralanalyse (ICP-OES)
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Ta slovenski standard je istoveten z: CEN/TS 17197:2018+AC:2018
ICS:
13.020.99 Drugi standardi v zvezi z Other standards related to
varstvom okolja environmental protection
91.100.01 Gradbeni materiali na Construction materials in
splošno general
SIST-TS CEN/TS 17197:2019+AC:2019 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST-TS CEN/TS 17197:2019+AC:2019
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SIST-TS CEN/TS 17197:2019+AC:2019
CEN/TS 17197:2018+AC
TECHNICAL SPECIFICATION
SPÉCIFICATION TECHNIQUE
December 2018
TECHNISCHE SPEZIFIKATION
ICS 91.100.01 Supersedes CEN/TS 17197:2018
English Version
Construction products: Assessment of release of
dangerous substances - Analysis of inorganic substances in
digests and eluates - Analysis by Inductively Coupled
Plasma - Optical Emission Spectrometry (ICP-OES)

Produits de construction: Évaluation des émissions de Bauprodukte - Beurteilung der Freisetzung von

substances dangereuses - Analyse des substances gefährlichen Stoffen - Analyse von anorganischen

inorganiques dans les digestats et les éluats - Partie 1: Stoffen in Aufschlusslösungen und Eluaten - Analyse

Analyse par plasma inductif couplé - Spectrométrie mit induktiv gekoppeltem Plasma - Optische

d'émission optique (ICP-OES) Emissionsspektralanalyse (ICP-OES)

This Technical Specification (CEN/TS) was approved by CEN on 2 April 2018 for provisional application and includes

Corrigendum issued by CEN on 19 December 2018.

The period of validity of this CEN/TS is limited initially to three years. After two years the members of CEN will be requested to

submit their comments, particularly on the question whether the CEN/TS can be converted into a European Standard.

CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS

available promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in

parallel to the CEN/TS) until the final decision about the possible conversion of the CEN/TS into an EN is reached.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,

Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,

Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,

Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATIO N
EUROPÄISCHES KOMITEE FÜR NORMUN G
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TS 17197:2018+AC:2018 E

worldwide for CEN national Members.
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Contents Page

European foreword ....................................................................................................................................................... 4

Introduction .................................................................................................................................................................... 5

1 Scope .................................................................................................................................................................... 6

2 Normative references .................................................................................................................................... 6

3 Terms and definitions ................................................................................................................................... 6

4 Symbols and abbreviations ......................................................................................................................... 8

5 Principle ............................................................................................................................................................. 8

6 Interferences .................................................................................................................................................... 9

7 Reagents .......................................................................................................................................................... 10

8 Apparatus ........................................................................................................................................................ 12

9 Procedure........................................................................................................................................................ 12

9.1 Test sample .................................................................................................................................................... 12

9.2 Test portion .................................................................................................................................................... 13

9.3 Instrument set up ......................................................................................................................................... 13

9.3.1 General requirements ................................................................................................................................ 13

9.3.2 Inter-element correction ........................................................................................................................... 13

9.3.3 Internal standard ......................................................................................................................................... 13

9.3.4 Instrument performance check .............................................................................................................. 13

9.4 Calibration ...................................................................................................................................................... 14

9.4.1 Linear calibration function ....................................................................................................................... 14

9.4.2 Non-linear calibration function .............................................................................................................. 14

9.4.3 Standard addition calibration ................................................................................................................. 14

9.5 Sample measurement ................................................................................................................................. 14

10 Calculation ...................................................................................................................................................... 15

10.1 Calculation for digests of construction products .............................................................................. 15

10.2 Calculation for eluates of construction products ............................................................................. 15

11 Expression of results ................................................................................................................................... 15

12 Performers characteristics ....................................................................................................................... 16

12.1 General ............................................................................................................................................................. 16

12.2 Blank ................................................................................................................................................................. 16

12.3 Calibration check ......................................................................................................................................... 16

12.4 Interference ................................................................................................................................................... 16

12.5 Recovery .......................................................................................................................................................... 16

12.6 Precision .......................................................................................................................................................... 16

13 Test report ...................................................................................................................................................... 17

Annex A (informative) Wavelengths, spectral interferences and estimated method

detection limits ............................................................................................................................................. 19

Annex B (informative) Method detection limit (MDL) and precision data for soil, sludge

and biowaste .................................................................................................................................................. 23

Annex C (informative) Inter element correction (IEC) ................................................................................ 27

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Annex D (normative) Determination of arsenic, antimony and selenium using hydride-

generation ICP-OES ...................................................................................................................................... 29

D.1 Scope ................................................................................................................................................................. 29

D.2 Principle ........................................................................................................................................................... 29

D.3 Apparatus ........................................................................................................................................................ 29

D.4 Reagents and solutions ............................................................................................................................... 30

D.5 Procedure ........................................................................................................................................................ 31

Bibliography ................................................................................................................................................................. 33

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European foreword

This document (CEN/TS 17197:2018+AC:2018) has been prepared by Technical Committee

CEN/TC 351 “Construction Products - Assessment of release of dangerous substances”, the secretariat

of which is held by NEN.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CEN shall not be held responsible for identifying any or all such patent rights.

This document supersedes CEN/TS 17197:2018.

This document includes the corrigendum 1 which corrects two values in D.4.8 and D.4.9.

The start and finish of text introduced or altered by corrigendum is indicated in the text by tags ˜™

This document has been prepared under a mandate given to CEN by the European Commission and the

European Free Trade Association.

Two similar documents have been developed for drinking water, surface water and waste water and

different types of waste respectively, see Annex B.

According to the CEN/CENELEC Internal Regulations, the national standards organisations of the

following countries are bound to announce this Technical Specification: Austria, Belgium, Bulgaria,

Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,

France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,

Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,

Turkey and the United Kingdom.
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Introduction

Following an extended evaluation of available methods for content and eluate analysis in construction

products (CEN/TR 16045 [1]) it was concluded that multi element analysis methods have preference

over methods developed for single elements or small groups of elements. This implies that for inorganic

substances ICP methods are preferred for the analysis of extracts obtained from digestion or eluates

obtained from leaching.

This document has been adopted from the work carried out in the context of CEN/TC 400

(project HORIZONTAL) and is very similar to EN 16170:2016, Sludge, treated biowaste and soil -

Determination of elements using inductively coupled plasma optical emission spectrometry (ICP-OES) [2].

This Technical Specification is part of a modular horizontal approach which was adopted

in CEN/TC 351. 'Horizontal' means that the methods can be used for a wide range of materials

and products with certain properties. 'Modular' means that a test standard developed in this approach

concerns a specific step in assessing a property and not the whole chain of measurement

(from sampling to analyses). Beneficial features of this approach are that modules can be replaced

by better ones without jeopardizing the standard chain and duplication of work of in different

Technical Committees for Products can be avoided as far as possible.
The modules that relate to the standards developed in CEN/TC 351 are specified

in CEN/TR 16220:2011, Construction products: Assessment of release of dangerous substances –

Complement to sampling [3] which distinguishes between the modules. This Technical Specification

belongs to the analytical step.

The use of modular horizontal standards implies the drawing of test schemes as well. Before executing

a test on a certain construction product to determine certain characteristics it is necessary to draw up

a protocol in which the adequate modules are selected and together form the basis for the entire

test procedure.
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1 Scope

This Technical Specification specifies the method for the determination of major, minor and trace

elements in aqua regia and nitric acid digests and in eluates of construction products by Inductively

Coupled Plasma – Optical Emission Spectrometry (ICP-OES). It refers to the following 44 elements:

Aluminium (Al), antimony (Sb), arsenic (As), barium (Ba), beryllium (Be), bismuth (Bi), boron (B),

cadmium (Cd), calcium (Ca), cerium (Ce), chromium (Cr), cobalt (Co), copper (Cu), iron (Fe),

lanthanum (La), lead (Pb), lithium (Li), magnesium (Mg), manganese (Mn), mercury (Hg),

molybdenum (Mo), neodymium (Nd), nickel (Ni), phosphorus (P), potassium (K), praseodymium (Pr),

samarium (Sm), scandium (Sc), selenium (Se), silicon (Si), silver (Ag), sodium (Na), strontium (Sr),

sulphur (S), tellurium (Te), thallium (Tl), thorium (Th), tin (Sn), titanium (Ti), tungsten (W),

uranium (U), vanadium (V), zinc (Zn), and zirconium (Zr).

For the determination of low levels of As, Se and Sb, hydride generation may be applied. This method

is described in Annex D.

NOTE Construction products include e.g. mineral-based products (S); bituminous products (B); metals (M);

wood-based products (W); plastics and rubbers (P); sealants and adhesives (A); paints and coatings (C),

see also CEN/TR 16045 [1].

The method in this Technical Specification is applicable to construction products and validated for the

product types listed in Annex D.
2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any amendments) applies.

CEN/TS 16637-2, Construction products — Assessment of release of dangerous substances — Part 2:

Horizontal dynamic surface leaching test

CEN/TS 16637-3, Construction products — Assessment of release of dangerous substances — Part 3:

Horizontal up-flow percolation test

EN 17087:— , Construction products: Assessment of release of dangerous substances — Preparation of

test portions from the laboratory sample for testing of release and analysis of content

CEN/TS 17196, Construction products — Assessment of release of dangerous substances — Digestion by

aqua regia for subsequent analysis of the major, minor and trace elements

EN ISO 3696:1995, Water for analytical laboratory use — Specification and test methods (ISO 3696:1987)

EN ISO/IEC 17025, General requirements for the competence of testing and calibration laboratories

(ISO/IEC 17025)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

Under preparation. Stage at the time of publication: prEN 17087:2017.
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• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1
digest
solution resulting from acid digestion of a sample
[SOURCE: EN 16687:2015, 3.2.8]
3.2
eluate
solution obtained from a leaching test
[SOURCE: EN 16687:2015, 4.2.7]
3.3
analyte
determinand
element, ion or substance to be determined by an analytical method
[SOURCE: EN 16687:2015, 4.1.11]
3.4
sample
portion of material selected from a larger quantity of material

Note 1 to entry: The manner of selection of the sample should be prescribed in a sampling plan.

Note 2 to entry: The term “sample” is often accompanied by a prefix (e.g. laboratory sample, test sample)

specifying the type of sample and/or the specific step in the sampling process to which the obtained material

relates.
[SOURCE: EN 16687:2015, 3.1.5]
3.5
test sample
analytical sample

sample, prepared from the laboratory sample, from which test portions are removed for testing or for

analysis
[SOURCE: EN 16687:2015, 3.2.2]
3.6
test portion
analytical portion

amount of the test sample taken for testing/ analysis, usually of known weight or volume

EXAMPLE 1 A bag of aggregates is delivered to the laboratory (the laboratory sample). For test purposes a

certain amount of the aggregate is dried, the result is the test sample. Afterwards the column for a percolation test

is filled with a test portion of dried aggregate.

EXAMPLE 2 A piece of flooring is delivered to the laboratory (the laboratory sample). For the purpose of

digestion a certain amount is size reduced, the result is the test sample. From the size-reduced test sample a test

portion is taken to execute the digestion. If the digest is to be analysed afterwards e.g. by ICP-MS, the whole

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amount of the digest is the laboratory sample again (and without any further treatment also the test sample), the

amount taken for the analytical procedure the test portion.
[SOURCE: EN 16687:2015, 3.2.3]
3.7
instrument detection limit
IDL

smallest analyte concentration that can be detected with a defined statistical probability using a

contaminant free instrument and a blank calibration solution

Note 1 to entry: Usually determined by three times the repeatability standard deviation (3 × Sr) calculated from

multiple measurements (n > 8) of a solution within a single run
[SOURCE: EN 16687:2015, 4.1.13]
3.8
method detection limit
MDL

smallest analyte concentration that can be detected with a specified analytical method including sample

preparation with a defined statistical probability

Note 1 to entry: Usually determined by three times the repeatability standard deviation (3 × Sr) calculated from

multiple measurements (n > 8) on different days and in different matrix solutions which contain a low analyte

concentration.
[SOURCE: EN 16687:2015, 4.1.12]
4 Symbols and abbreviations
ICP Inductively coupled plasma
ICS Interference check solution
IDL Instrumental detection limit
IEC Inter-element correction
MDL Method detection limit (limit of detection)
MS Mass spectrometry
OES Optical emission spectrometry
5 Principle

This method describes multi-elemental determinations by ICP-OES using sequential or simultaneous

optical systems and axial or radial viewing of the plasma. The instrument measures characteristic

emission spectra by optical spectrometry. Samples are nebulized and the resulting aerosol is

transported to the plasma torch. Element-specific emission spectra are produced by a radio-frequency

inductively coupled plasma. The spectra are dispersed by a grating spectrometer, and the intensities of

the emission lines are monitored by photosensitive devices. Background correction is required for trace

element determination. Background correction is not required in cases of line broadening where a

background correction measurement would actually degrade the analytical result. Additional

interferences and matrix effects shall be recognized and appropriate corrections made; tests for their

presence are described.
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Alternatively, users may choose multivariate calibration methods (e.g. Multicomponent Spectral

Fitting). In this case, point selections for background correction are superfluous since whole spectral

regions are processed.

For the determination of low levels of As, Se and Sb, hydride generation may be applied. This method is

described in Annex D.
6 Interferences

Spectral interferences are caused by background emission from continuous or recombination

phenomena, stray light from the line emission of high concentration elements, overlap of a spectral line

from another element, or unresolved overlap of molecular band spectra.

Background emission and stray light can usually be compensated for by subtracting the background

emission determined by measurements adjacent to the analyte wavelength peak. Spectral scans of

samples or single element solutions in the analyte regions may indicate when alternate wavelengths are

desirable because of severe spectral interference. These scans will also show whether the most

appropriate estimate of the background emission is provided by an interpolation from measurements

on both sides of the wavelength peak or by measured emission on only one side. The locations selected

for the measurement of background intensity will be determined by the complexity of the spectrum

adjacent to the wavelength peak. The locations used for routine measurement shall be free of off-line

spectral interference (inter-element or molecular) or adequately corrected to reflect the same change in

background intensity as occurs at the wavelength peak.

Spectral overlaps may be avoided by using an alternate wavelength or can be compensated by equations

that correct for inter-element contributions. Instruments that use equations for inter-element

correction require the interfering elements be analysed at the same time as the element of interest.

When operative and uncorrected, interferences will produce false positive determinations and be

reported as analyte concentrations. The interferences are listed in Table A.1.

Physical interferences are effects associated with the sample nebulization and transport processes.

Changes in viscosity and surface tension can cause significant inaccuracies, especially in samples

containing high dissolved solids or high acid concentrations. If physical interferences are present, they

shall be reduced by diluting the sample, by using an internal standard or a high solids nebulizer. They

can also be minimized by matrix matching particularly by matching the acid concentration.

Chemical interferences include molecular compound formation, ionization effects, and solute

vaporization effects. Normally, these effects are not significant with the ICP technique, but if observed,

can be minimized by careful selection of operating conditions (radio-frequency power, observation

position, gas flow rate and so forth), by buffering of the sample, by matrix matching, and by standard

addition procedures. Chemical interferences are highly dependent on matrix type and the specific

analyte element.

Memory interferences result when analytes in a previous sample contribute to the signals measured in a

new sample. Memory effects can result from sample deposition in the uptake tubing or to the nebulizer

and from the build up of sample material in the plasma torch and spray chamber. The occurrence

memory effects depend on the element and can be minimized by flushing the system with a rinse blank

between samples. The possibility of memory interferences should be recognized within an analytical

run and suitable rinse times should be used to reduce them. The rinse times necessary for a particular

element shall be estimated prior to analysis during method development.
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7 Reagents
7.1 General

For the determination of elements at trace and ultra trace level, the reagents shall be of adequate purity.

The concentration of the analyte or interfering substances in the reagents and the water should be

negligible compared to the lowest concentration to be determined.

7.2 Water, complying with grade 1 as defined in EN ISO 3696:1995 for all sample preparations and

dilutions.
7.3 Nitric acid, c(HNO ) = 16 mol/l, ρ ~ 1,4 kg/l.

NOTE Nitric acid is available both as ρ(HNO3) = 1,40 kg/l (w(HNO3) = 650 g/kg) and ρ(HNO3) = 1,42 kg/l

(w(HNO3) = 690 g/kg). Both are suitable for use in this method provided they have a minimal content of the

analytes of interest.
7.4 Hydrochloric acid, c(HCl) = 12 mol/l, ρ ~ 1,18 kg/l.
7.5 Single-element standard stock solutions

Ag, Al, As, B, Ba, Be, Bi, Ca, Cd, Ce, Co, Cr, Cu, Fe, Hg, K, La, Li, Mg, Mn, Mo, Na, Nd, Ni, P, Pb, Pr, (total) S, Si,

Sb, Sc, Se, Sm, Sn, Sr, Te ,Ti, Th, Tl, U, V, W, Zn, Zr, c = 1 000 mg/l each.

Both single-element stock solutions and multi-element stock solutions with adequate specification

stating the acid used and the preparation technique are commercially available. Single element

solutions can be made from high purity metals.

These solutions are considered to be stable for more than one year, but in reference to guaranteed

stability, the recommendations of the manufacturer should be considered.
7.6 Multi-element standard stock solutions
7.6.1 General

Depending on the scope, different multi-element calibration solutions may be necessary. In general,

when combining multi-element calibration solutions, their chemical compatibility and the possible

hydrolysis of the components shall be regarded. Care shall be taken to prevent chemical reactions (e.g.

precipitation).

NOTE In multi element standards precipitation of Ag, Ba or Pb can occur; Ag is only stable in high

hydrochloric acid concentrations or nitric acid.

The multi-element calibration solutions are considered to be stable for several months, if stored in the

dark. This does not apply to multi-element calibration solutions that are prone to hydrolysis, in

particular solutions of Bi, Mo, Sn, Sb, Te, W, Hf and Zr.

7.6.2 Multi-element standard stock solution A at the mg/l level may contain the following

elements:

Ag, Al, As, B, Ba, Be, Bi, Cd, Ce, Co, Cr, Cs, Cu, La, Li, Mn, Ni, Pb, Rb, Sr, Th, Tl, U, V, Se, Zn.

Use nitric acid for stabilization of standard solution A.

7.6.3 Multi-element standard stock solution B at the mg/l level may contain the following

elements:
Mo, Sb, Sn, W, Zr
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SIST-TS CEN/TS 17197:2019+AC:2019
CEN/TS 17197:2018+AC:2018 (E)

Use hydrochloric acid (7.4) for stabilisation of multi-element standard stock solution B. Other e

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