Standard Practice for Describing and Specifying a Direct Current Plasma Atomic Emission Spectrometer

SIGNIFICANCE AND USE
This practice describes the essential components of the DCP spectrometer. This description allows the user or potential user to gain a basic understanding of this system. It also provides a means of comparing and evaluating this system with similar systems, as well as understanding the capabilities and limitations of each instrument.
SCOPE
1.1 This practice describes the components of a direct current plasma (DCP) atomic emission spectrometer. This practice does not attempt to specify component tolerances or performance criteria. This practice does, however, attempt to identify critical factors affecting bias, precision, and sensitivity. A prospective user should consult with the vendor before placing an order to design a testing protocol for demonstrating that the instrument meets all anticipated needs.
1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific hazards statements are give in Section 9.
WITHDRAWN RATIONALE
This practice describes the components of a direct current plasma (DCP) atomic emission spectrometer.
Formerly under the jurisdiction of Committee E01 on Analytical Chemistry for Metals, Ores, and Related Materials, this practice was withdrawn in October 2004 because it is no longer in practice.

General Information

Status
Historical
Publication Date
30-Apr-2008
Current Stage
Ref Project

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Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: E1832 − 08
StandardPractice for
Describing and Specifying a Direct Current Plasma Atomic
1
Emission Spectrometer
This standard is issued under the fixed designation E1832; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope E520 Practice for Describing Photomultiplier Detectors in
Emission and Absorption Spectrometry
1.1 This practice describes the components of a direct
E528 Practice for Grounding Basic Optical Emission Spec-
current plasma (DCP) atomic emission spectrometer. This
3
trochemical Equipment (Withdrawn 1998)
practice does not attempt to specify component tolerances or
E1097 Guide for Determination of Various Elements by
performance criteria. This practice does, however, attempt to
Direct Current Plasma Atomic Emission Spectrometry
identifycriticalfactorsaffectingbias,precision,andsensitivity.
A prospective user should consult with the vendor before
3. Terminology
placing an order to design a testing protocol for demonstrating
3.1 For terminology relating to emission spectrometry, refer
that the instrument meets all anticipated needs.
to Terminology E135.
1.2 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
4. Significance and Use
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica- 4.1 This practice describes the essential components of the
bility of regulatory limitations prior to use. Specific hazards DCPspectrometer.This description allows the user or potential
statements are give in Section 9. user to gain a basic understanding of this system. It also
providesameansofcomparingandevaluatingthissystemwith
2. Referenced Documents similar systems, as well as understanding the capabilities and
2 limitations of each instrument.
2.1 ASTM Standards:
E135 Terminology Relating to Analytical Chemistry for
5. Overview
Metals, Ores, and Related Materials
5.1 A DCP spectrometer is an instrument for determining
E158 Practice for Fundamental Calculations to Convert
Intensities into Concentrations in Optical Emission Spec- concentration of elements in solution. It typically is comprised
3
of several assemblies including a direct current (dc) electrical
trochemical Analysis (Withdrawn 2004)
E172 Practice for Describing and Specifying the Excitation source, a sample introduction system, components to form and
contain the plasma, an entrance slit, elements to disperse
SourceinEmissionSpectrochemicalAnalysis(Withdrawn
3
2001) radiation emitted from the plasma, one or more exit slits, one
or more photomultipliers for converting the emitted radiation
E406 Practice for Using Controlled Atmospheres in Spec-
trochemical Analysis into electrical current, one or more electrical capacitors for
storing this current as electrical charge, electrical circuitry for
E416 Practice for Planning and Safe Operation of a Spec-
3
trochemical Laboratory (Withdrawn 2005) measuring the voltage on each storage device, and a dedicated
computer with printer. The liquid sample is introduced into a
spray chamber at a right angle to a stream of argon gas. The
sampleisbrokenupintoafineaerosolbythisargonstreamand
1
This practice is under the jurisdiction of ASTM Committee E01 on Analytical
carriedintotheplasmaproducedbyadc-arcdischargebetween
Chemistry for Metals, Ores, and Related Materials and is the direct responsibility of
Subcommittee E01.20 on Fundamental Practices.
a tungsten electrode and two or more graphite electrodes.
Current edition approved May 1, 2008. Published June 2008. Originally
When the sample passes through the plasma, it is vaporized
approvedin1996.Lastpreviouseditionapprovedin2003asE1832 – 03,whichwas
and atomized, and many elements are ionized. Free atoms and
withdrawn October 2004 and reinstated in May 2008. DOI: 10.1520/E1832-08.
2
ions are excited from their ground states. When electrons of
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
excited atoms and ions fall to a lower-energy state, photons of
Standards volume information, refer to the standard’s Document Summary page on
specific wavelengths unique to each emitting species are
the ASTM website.
3
emitted.Thisradiation,focussedbyalensontotheentranceslit
The last approved version of this historical standard is referenced on
www.astm.org. of the spectrometer and directed to an echelle grating and
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United St
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:E1832–03 Designation:E1832–08
Standard Practice for
Describing and Specifying a Direct Current Plasma Atomic
1
Emission Spectrometer
This standard is issued under the fixed designation E 1832; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This practice describes the components of a direct current plasma (DCP) atomic emission spectrometer. This practice does
notattempttospecifycomponenttolerancesorperformancecriteria.Thispracticedoes,however,attempttoidentifycriticalfactors
affecting bias, precision, and sensitivity. A prospective user should consult with the vendor before placing an order to design a
testing protocol for demonstrating that the instrument meets all anticipated needs.
1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory
limitations prior to use. Specific hazards statements are give in in Section 9.
2. Referenced Documents
2
2.1 ASTM Standards:
E 135 Terminology Relating to Analytical Chemistry for Metals, Ores, and Related Materials
E 158 Practice for Fundamental Calculations to Convert Intensities into Concentrations in Optical Emission Spectrochemical
Analysis
E 172 Practice for Describing and Specifying the Excitation Source in Emission Spectrochemical Analysis
E 406 Practice for Using Controlled Atmospheres in Spectrochemical Analysis
E 416 Practice for Planning and Safe Operation of a Spectrochemical Laboratory
E 520 Practice for Describing Photomultiplier Detectors in Emission and Absorption Spectroscopy Spectrometry
3
E 528Practices for Grounding Basic Optical Emission Spectrochemical Equipment
E876Practice for Use of Statistics in the Evaluation of Spectrometric Data Practices for Grounding Basic Optional Emission
3
Spectrochemical Equipment
E 1097 Guide for Direct Current Plasma-Atomic Emission Spectrometry Analysis
3. Terminology
3.1 For terminology relating to emission spectrometry, refer to Terminology E 135.
4. Significance and Use
4.1 This practice describes the essential components of the DCPspectrometer. This description allows the user or potential user
togainabasicunderstandingofthissystem.Italsoprovidesameansofcomparingandevaluatingthissystemwithsimilarsystems,
as well as understanding the capabilities and limitations of each instrument.
5. Overview
5.1 A DCP spectrometer is an instrument for determining concentration of elements in solution. It typically is comprised of
several assemblies including a direct current (dc) electrical source, a sample introduction system, components to form and contain
the plasma, an entrance slit, elements to disperse radiation emitted from the plasma, one or more exit slits, one or more
photomultipliersforconvertingtheemittedradiationintoelectricalcurrent,oneormoreelectricalcapacitorsforstoringthiscurrent
as electrical charge, electrical circuitry for measuring the voltage on each storage device, and a dedicated computer with printer.
The liquid sample is introduced into a spray chamber at a right angle to a stream of argon gas. The sample is broken up into a fine
1
This practice is under the jurisdiction ofASTM Committee E01 onAnalytical Chemistry for Metals, Ores,Ores and Related Materials and is the direct responsibility of
Subcommittee E01.20 on Fundamental Practices.
Current edition approved Oct.May 1, 2003.2008. Published December 2003.June 2008. Originally approved in 1996. Last previous edition approved in 19962003 as E
´2
1832–96 .E 1832 – 03, which was withdrawn October 2004 and reinstated in May 2008.
2
ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,orcontactASTMCustomerServiceatservice@astm.org.ForAnnualBookofASTMStandards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Withdrawn.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

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E1832–08
aerosol by this argon stream and carried into the plasma produced by a dc-arc discharge between a tungsten electrode and two or
more graphite electrodes. When the sample passes through the plasma, it is vapor
...

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