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BS EN ISO 20595:2022 Water quality. Determination of selected highly volatile organic compounds in water. Method using gas chromatography and mass spectrometry by static headspace technique (HS-GC-MS) >
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BS EN ISO 20595:2022 Water quality. Determination of selected highly volatile organic compounds in water. Method using gas chromatography and mass spectrometry by static headspace technique (HS-GC-MS), 2022
- undefined [Go to Page]
- Foreword
- Introduction
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Principle
- 5 Interferences
- 5.1 General
- 5.2 Interferences in the laboratory
- 5.3 Interferences by the matrix
- 5.4 Interferences in the headspace
- 5.5 Interferences during gas chromatography and mass spectrometry
- 6 Reagents
- 7 Apparatus
- 8 Sampling
- 9 Procedure
- 9.1 Sample preparation
- 9.2 GC-MS operating conditions
- 9.3 Control measures
- 9.3.1 Blank value control
- 9.3.2 Control over the total procedure
- 9.4 Identification of individual compounds
- 9.4.1 General
- 9.4.2 Identification of individual compounds with mass spectrometric detector
- 10 Calibration
- 10.1 General
- 10.2 Calibration with internal standard
- 11 Evaluation
- 12 Expression of results
- 13 Test report
- Annex A (informative) Example of GC column, headspace vial and septum
- Annex B (informative) Examples of internal standards
- Annex C (informative) Example of headspace and gas chromatographic conditions
- Annex D (informative) Performance data
- Bibliography [Go to Page]