Standard
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AS 2134.1-1999
[Current]Sets out recommended practices for the operation of flame atomic absorption spectrometers used in chemical analysis. This Standard includes a description of instrumentation, optimization procedures, calibration, test procedures, information on factors affecting atomic absorption and a section on analytical quality assurance.
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 NEBULIZER-SPRAY CHAMBER SYSTEM
2.3.1 General
2.3.2 Nebulizer
2.3.3 Spray chamber
2.3.4 Drain system
2.3.5 System design
2.4 BURNERS
2.4.1 General
2.4.2 Inscription
2.4.3 Construction
2.5 SAFETY PRECAUTIONS
2.5.1 Deposition of salts
2.5.2 Perchloric acid and perchlorates
2.5.3 Silver salts
2.5.4 Fume hoods
2.5.5 Safety glasses/shield
2.5.6 Flammability hazard—Organic solvents
2.6 FUEL-OXIDANT CONTROL SYSTEM
2.6.1 General
2.6.2 Acetylene cylinders
2.6.3 Nitrous oxide cylinders
2.6.4 Gas mixture—Igniting and extinguishing
2.7 MONOCHROMATOR
2.7.1 Resolution
2.7.2 Wavelength stability
2.7.3 Slit width
2.7.4 Optical system
2.8 MEASUREMENT SYSTEM
2.8.1 General
2.8.2 Detection, amplification and display
2.8.3 Readability
3 INSTRUMENT OPTIMIZATION
3.1 GENERAL
3.2 FACTORS AFFECTING ATOMIC ABSORPTION
3.3 MATRIX AND IONIZATION EFFECTS
3.4 OPTIMUM INSTRUMENT SETTINGS TO MINIMIZE INTERFERENCE
3.5 SPECTRAL INTERFERENCE
3.6 SETTING UP PROCEDURE
4 CALIBRATION AND ANALYSIS
4.1 CONTAMINATION AND REAGENT PURITY
4.2 CERTIFIED REFERENCE MATERIALS
4.3 CALIBRATION AND TEST SOLUTIONS AND CALIBRATION GRAPHS
4.3.1 Calibration solutions
4.3.2 Test solution
4.3.3 Blank test solution
4.3.4 Concentrations of calibration and test solutions
4.3.5 Calibration graphs
4.4 CALIBRATION AND TEST PROCEDURE
4.4.1 Absorbance measurements
4.4.2 Treatment of blank readings
4.4.3 Direct instrumental measurement
4.4.4 Analyte addition technique
4.4.5 Test sample result
4.5 ACCEPTANCE OF RESULTS
4.5.1 General
4.5.2 Acceptance of analytical values
4.5.2.1 Single determination
4.5.2.2 Replicate determinations
4.5.2.3 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)
[Current]
Recommended practice for chemical analysis by atomic absorption spectrometry, Part 2: Graphite furnace spectrometry
[Current]
Recommended practice for chemical analysis by atomic absorption spectrometry, Part 3: Vapour generation atomic absorption spectrometry