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AS 2134.2-1999
[Current]Recommended practice for chemical analysis by atomic absorption spectrometry, Part 2: Graphite furnace spectrometry
Sets out recommended practices for the operation of graphite furnace absorption spectrometers used in chemical analysis. The Standard includes a description of instrumentation, optimization procedures, calibration, test procedures and information on factors affecting atomic absorption. A section on analytical quality assurance has been added to the Standard.
Published: 05/12/1999
Pages: 26
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
PREFACE
1 SCOPE AND GENERAL
1.1 SCOPE
1.2 PRINCIPLE
1.3 REFERENCED DOCUMENTS
1.4 DEFINITIONS
2 INSTRUMENTATION
2.1 GENERAL
2.2 SOURCES OF RADIATION
2.2.1 Line sources—Hollow-cathode lamp
2.2.1.1 Principle of operation
2.2.1.2 Operating current
2.2.1.3 Stability and testing
2.2.1.4 Multi-element type
2.2.2 Line sources—other lamps
2.2.3 Continuum sources
2.3 GRAPHITE FURNACE SYSTEM
2.3.1 Basic construction
2.3.2 Use of the furnace
2.4 SAMPLE INTRODUCTION SYSTEM
2.4.1 Liquid sample introduction
2.4.2 Solid sample introduction
2.4.3 Manual sample introduction
2.4.4 Automatic sample introduction
2.4.5 Temperature of furnace for sample introduction
2.5 SAFETY PRECAUTIONS
2.5.1 Safety hazards requiring precautions
2.5.2 Fume hoods
2.5.3 Radiation safety
2.5.4 Compressed gases
2.5.5 Heated surfaces
2.5.6 Magnetic fields
2.6 MONOCHROMATOR
2.6.1 Resolution
2.6.2 Wavelength stability
2.6.3 Slit width
2.6.4 Slit height
2.6.5 Optical system
2.7 MEASUREMENT SYSTEM
2.7.1 General
2.7.2 Detection, amplification and display
2.7.3 Readability
3 INSTRUMENT OPERATION
3.1 GENERAL
3.2 FACTORS AFFECTING ATOMIC ABSORPTION
3.2.1 Principal factors
3.2.2 Temperature effects
3.2.3 Diffusion effects
3.2.4 Chemical effects
3.2.5 Internal inert gas flow
3.3 TECHNIQUES TO MINIMIZE INTERFERENCE
3.4 SPECTRAL INTERFERENCE
3.5 SENSITIVITY
3.6 PRECISION
3.7 SETTING UP PROCEDURE
4 CALIBRATION AND ANALYSIS
4.1 CONTAMINATION AND REAGENT PURITY
4.2 CONTAINERS
4.3 REFERENCE MATERIALS
4.4 CALIBRATION AND TEST SOLUTIONS, AND CALIBRATION GRAPHS
4.4.1 Calibration solutions
4.4.2 Test solution
4.4.3 Blank test solution
4.4.4 Concentrations of calibration and test solutions
4.4.5 Calibration graphs
4.5 CALIBRATION AND TEST PROCEDURE
4.5.1 Absorbance measurements
4.5.2 Treatment for blank readings
4.5.3 Direct instrumental measurement
4.5.4 Analyte addition technique
4.6 ACCEPTANCE OF RESULTS
4.6.1 General
4.6.2 Acceptance criteria
4.6.2.1 Single test sample
4.6.2.2 Replicate determinations
4.6.2.3 Acceptance of reference material results
5 ANALYTICAL QUALITY ASSURANCE
5.1 GENERAL
5.2 INSTRUMENT CALIBRATION AND STANDARDIZATION
5.3 VALIDATION OF ANALYTICAL PROCEDURE
5.3.1 Traceability of samples
5.3.2 Documentation of analytical methods
5.3.3 Monitoring of analytical performance
5.4 TREATMENT OF DATA FROM MONITORING PROCEDURE
5.5 TRACEABILITY OF RESULTS
5.6 CORRECTIVE ACTION
APPENDIX A
APPENDIX B
Cited references in this standard
BS 5703
Guide to data analysis and quality control using cusum techniques (series)
[Withdrawn]
Chemical analysis — Interlaboratory test programs — For determining precision of analytical method(s) — Guide to the planning and conduct
[Withdrawn]
Verification and use of volumetric apparatus, Part 1: General — Volumetric glassware
[Current]
Recommended practice for chemical analysis by atomic absorption spectrometry, Part 3: Vapour generation atomic absorption spectrometry
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