ISO 12010:2012
Water quality — Determination of short-chain polychlorinated alkanes (SCCPs) in water — Method using gas chromatography-mass spectrometry (GC-MS) and negative-ion chemical ionization (NCI)
ISO 12010:2012 specifies a method for the quantitative determination of the sum of short-chain polychlorinated n‑alkanes, also known as short-chain polychlorinated paraffins (SCCPs), in the carbon bond range n-C10 to n-C13 inclusive, in mixtures with chlorine mass fractions ("contents") between 49 % and 67 %, including approximately 6 300 of approximately 8 000 congeners.
This method is applicable to the determination of the sum of SCCPs in unfiltered surface water, ground water, drinking water and waste water using gas chromatography-mass spectrometry with electron capture negative ionization (GC-ECNI-MS).
The method can be applied to samples containing 0,1 µg/l to 10 µg/l. Depending on the waste water matrix, the lowest detectable concentration is estimated to be >0,1 µg/l.
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Bibliography
Foreword
Introduction
1 Scope
2 Normative references
3 Principle
4 Interferences
5 Reagents and standards
6 Apparatus
7 Sampling and sample pretreatment
8 Procedure
8.1 Extraction with liquid‑liquid extraction method
8.2 Extraction of samples with higher content of suspended matter
8.3 Extract clean-up
8.4 Measurement and integration of the chromatogram
8.5 Calibration
9 Expression of results
10 Test report
Annex A (informative) Additional quality control check solutions
Annex B (informative) Explanation of the calibration of the sum of SCCPs with multiple linear regression
Annex C (informative) Typical GC-MS conditions
Annex D (informative) Typical chromatograms of standard solutions 1 µg/ml
Annex E (informative) Presentation of goodness of fit
Annex F (informative) Example for recoveries of quality assurance solutions
Annex G (informative) Chromatogram of a real water sample with a sum of SCCPs concentration of 2,59 µg/l
Annex H (informative) Precision data
Bibliography
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Bibliography
Foreword
Introduction
1 Scope
2 Normative references
3 Principle
4 Interferences
5 Reagents and standards
6 Apparatus
7 Sampling and sample pretreatment
8 Procedure
8.1 Extraction with liquid‑liquid extraction method
8.2 Extraction of samples with higher content of suspended matter
8.3 Extract clean-up
8.4 Measurement and integration of the chromatogram
8.5 Calibration
9 Expression of results
10 Test report
Annex A (informative) Additional quality control check solutions
Annex B (informative) Explanation of the calibration of the sum of SCCPs with multiple linear regression
Annex C (informative) Typical GC-MS conditions
Annex D (informative) Typical chromatograms of standard solutions 1 µg/ml
Annex E (informative) Presentation of goodness of fit
Annex F (informative) Example for recoveries of quality assurance solutions
Annex G (informative) Chromatogram of a real water sample with a sum of SCCPs concentration of 2,59 µg/l
Annex H (informative) Precision data
Bibliography