What is this ISO 21253‑2 - Multi-compound class methods for water quality testing about?
ISO 21253‑2 is the second part of the multi-series on water quality and discusses multi-compound class methods. ISO 21253‑2 specifies the criteria for developing an in-house mass spectrometry-based method for quantitative analysis of multiple subgroups of organic substances in the scope of physical-chemical analysis of water.
ISO 21253‑2 supplements ISO/TS 13530 that provides guidance on the initial characterization of the measurement performances, by providing details to select the test matrix and internal standards and criteria for the analyte and internal standard recoveries.
Note: ISO 21253‑2 is not intended as a substitute for the currently applicable analytical standards dedicated to organic compounds but as a resource bringing additional characterization elements.
Who is ISO 21253‑2 - Multi-compound class methods for water quality testing for?
ISO 21253‑2 on ‘multi-compound class methods for water quality testing’ is useful for:
- Government testing laboratories
- Industries that release wastewater in natural water bodies
- Geological scientists
- Nuclear power plants
- Public water supply systems
Why should you use ISO 21253‑2 - Multi-compound class methods for water quality testing?
ISO 21253‑2 proposes a rating-scale method for analytical protocols dedicated to huge numbers of compounds, making it possible to give the method a reliability score for each compound. When a review of these critical points concludes that the method can reliably quantify the analytes, then the initial characterization of the measurement performances of the method can be started.
ISO 21253‑2 specifies the critical points to be considered when developing a mass spectrometry-based method for the analysis of multiple subgroups of organic substances in water samples. The critical points addressed here involve:
- Selection of the matrix
- Internal standards and internal standard recoveries
- Analyte recovery
ISO 21253‑2 proposes that quality assurance criteria should be made routine to ensure that performance levels do not degrade over time. ISO 21253‑2 helps you to develop an inhouse method to test water quality using mass spectrometry-based methods.
