ASTM E1770-19
(Practice)Standard Practice for Optimization of Instrumentation for Graphite Furnace Atomic Absorption Spectrometry
Standard Practice for Optimization of Instrumentation for Graphite Furnace Atomic Absorption Spectrometry
SIGNIFICANCE AND USE
4.1 This practice is for optimizing the parameters used in the determination of trace elements in metals and alloys by the graphite furnace atomic absorption spectrometric method. It also describes the practice for checking the spectrometer performance. The work is expected to be performed in a properly equipped laboratory by trained operators and appropriate disposal procedures are to be followed.
SCOPE
1.1 This practice covers the optimization of graphite furnace atomic absorption spectrometers and the checking of spectrometer performance criteria.
1.2 The values stated in SI units are to be regarded as the standard.
1.3 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: E1770 − 19
Standard Practice for
Optimization of Instrumentation for Graphite Furnace
1
Atomic Absorption Spectrometry
This standard is issued under the fixed designation E1770; 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 Spectrophotometric and for Spectroscopic Atomic Analy-
3
sis (Withdrawn 2005)
1.1 Thispracticecoverstheoptimizationofgraphitefurnace
atomicabsorptionspectrometersandthecheckingofspectrom-
3. Terminology
eter performance criteria.
3.1 For definitions of terms used in this practice, refer to
1.2 The values stated in SI units are to be regarded as the
Terminology E135.
standard.
1.3 This standard does not purport to address all of the
4. Significance and Use
safety concerns, if any, associated with its use. It is the
4.1 This practice is for optimizing the parameters used in
responsibility of the user of this standard to establish appro-
the determination of trace elements in metals and alloys by the
priate safety, health, and environmental practices and deter-
graphite furnace atomic absorption spectrometric method. It
mine the applicability of regulatory limitations prior to use.
also describes the practice for checking the spectrometer
1.4 This international standard was developed in accor-
performance. The work is expected to be performed in a
dance with internationally recognized principles on standard-
properly equipped laboratory by trained operators and appro-
ization established in the Decision on Principles for the
priate disposal procedures are to be followed.
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
5. Apparatus
Barriers to Trade (TBT) Committee.
5.1 Atomic Absorption Spectrometer with Graphite Furnace
2. Referenced Documents Atomizer, equipped with an appropriate background corrector,
2 a signal output device such as a video display screen (VDS), a
2.1 ASTM Standards:
digital computer, a printer, and an autosampler.
E50 Practices for Apparatus, Reagents, and Safety Consid-
erations for Chemical Analysis of Metals, Ores, and 5.2 Pyrolytic Graphite-Coated Graphite Tubes, conforming
Related Materials to the instrument manufacturer’s specifications.
E135 Terminology Relating to Analytical Chemistry for
5.3 Pyrolytic Graphite Platforms, L’vov design, fitted to the
Metals, Ores, and Related Materials
tubes specified in 5.2.
E876 Practice for Use of Statistics in the Evaluation of
3
5.4 Pyrolytic Graphite-Coated Graphite Tubes,
Spectrometric Data (Withdrawn 2003)
platformless, conforming to the instrument manufacturer’s
E1184 Practice for Determination of Elements by Graphite
specifications.
Furnace Atomic Absorption Spectrometry
E1452 Practice for Preparation of Calibration Solutions for 5.5 Radiation Source for the Analyte—A hollow cathode
lamp or electrodeless discharge lamp is suitable.
5.5.1 The use of multi-element lamps is not generally
1
This practice is under the jurisdiction of ASTM Committee E01 on Analytical recommended, since they may be subject to spectral line
Chemistry for Metals, Ores, and Related Materials and is the direct responsibility of
overlaps.
Subcommittee E01.20 on Fundamental Practices.
Current edition approved April 15, 2019. Published May 2019. Originally 5.6 For general discussion of the theory and instrumental
approved in 1995. Last previous edition approved in 2014 as E1770 – 14. DOI:
requirements of graphite furnace atomic absorption spectro-
10.1520/E1770-19.
metric analysis, see Practice E1184.
2
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
Standards volume information, refer to the standard’s Document Summary page on 6. Reagents
the ASTM website.
3
6.1 Purity and Concentration of Reagents—The purity and
The last approved version of this historical standard is referenced on
www.astm.org. concentration of common chemical reagents shall conform to
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
E1770 − 19
Practices E50. The reagents should be free of or contain 9.2 Slit Width, as recommended by the manufacturer.Where
minimal amounts (<0.01 µg/g) of the analyte of interest. two slit width settings are available, select the shorter width.
6.2 Magnesium Nitrate Solution(2g
...
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: E1770 − 14 E1770 − 19
Standard Practice for
Optimization of Electrothermal Instrumentation for Graphite
Furnace Atomic Absorption Spectrometric
1
EquipmentSpectrometry
This standard is issued under the fixed designation E1770; 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 covers the optimization of electrothermal graphite furnace atomic absorption spectrometers and the checking
of spectrometer performance criteria.
1.2 The values stated in SI units are to be regarded as the standard.
1.3 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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
E50 Practices for Apparatus, Reagents, and Safety Considerations for Chemical Analysis of Metals, Ores, and Related Materials
E135 Terminology Relating to Analytical Chemistry for Metals, Ores, and Related Materials
3
E876 Practice for Use of Statistics in the Evaluation of Spectrometric Data (Withdrawn 2003)
E1184 Practice for Determination of Elements by Graphite Furnace Atomic Absorption Spectrometry
E1452 Practice for Preparation of Calibration Solutions for Spectrophotometric and for Spectroscopic Atomic Analysis
3
(Withdrawn 2005)
3. Terminology
3.1 For definitions of terms used in this test method, practice, refer to Terminology E135.
4. Significance and Use
4.1 This practice is for optimizing the parameters used in the determination of trace elements in metals and alloys by the
electrothermal graphite furnace atomic absorption spectrometric method. It also describes the practice for checking the
spectrometer performance. The work is expected to be performed in a properly equipped laboratory by trained operators and
appropriate disposal procedures are to be followed.
5. Apparatus
5.1 Atomic Absorption Spectrometer with Electrothermal Graphite Furnace Atomizer, equipped with an appropriate background
corrector, a signal output device such as a video display screen (VDS), a digital computer, a printer, and an autosampler.
5.2 Pyrolytic Graphite-Coated Graphite Tubes, conforming to the instrument manufacturer’s specifications.
1
This practice is under the jurisdiction of ASTM Committee E01 on Analytical Chemistry for Metals, Ores, and Related Materials and is the direct responsibility of
Subcommittee E01.20 on Fundamental Practices.
Current edition approved Dec. 1, 2014April 15, 2019. Published February 2015 May 2019. Originally approved in 1995. Last previous edition approved in 20062014 as
E1770 – 95 (2006).E1770 – 14. DOI: 10.1520/E1770-14.10.1520/E1770-19.
2
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 Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
The last approved version of this historical standard is referenced on www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
E1770 − 19
5.3 Pyrolytic Graphite Platforms, L’vov design, fitted to the tubes specified in 5.2.
5.4 Pyrolytic Graphite-Coated Graphite Tubes, platformless, conforming to the instrument manufacturer’s specifications.
5.5 Radiation Source for the Analyte—A hollow cathode lamp or electrodeless discharge lamp is suitable.
NOTE 1—The use of multi-element lamps is not generally recommended, since they may be subject to spectral line overlaps.
5.5.1 The use of multi-element lamps is not generally recommended, since they may be subject to spectral line overlaps.
5.6 For general discussion of the theory and instrumental requirements of electrothermal graphite furnace atomic absorption
spe
...
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