International Standard
ISO 22104:2021
Water quality — Determination of microcystins — Method using liquid chromatography and tandem mass spectrometry (LC-MS/MS)
Reference number
ISO 22104:2021
Версия 1
2021-07
© ISO 2024
International Standard
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недоступно на русском языке
Опубликовано (Версия 1, 2021)

ISO 22104:2021

Формат
Язык
CHF 151
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Тезис

This document specifies a method for the quantification of twelve microcystin variants (microcystin-LR, -LA, -YR, -RR, -LY, -WR, -HtyR, -HilR, -LW, -LF, [Dha7]-microcystin-LR, and [Dha7]-microcystin-RR) in drinking water and freshwater samples between 0,05 µg/l to 1,6 µg/l. The method can be used to determine further microcystins, provided that analytical conditions for chromatography and mass spectrometric detection has been tested and validated for each microcystin. Samples are analysed by LC-MS/MS using internal standard calibration.

This method is performance based. The laboratory is permitted to modify the method, e.g. increasing direct flow injection volume for low interference samples or diluting the samples to increase the upper working range limit, provided that all performance criteria in this method are met.

Detection of microcystins by high resolution mass spectrometry (HRMS) as an alternative for tandem mass spectrometry (MS/MS) is described in Annex A.

An alternative automated sample preparation method based on on-line solid phase extraction coupled to liquid chromatography is described in Annex B.

When instrumental sensitivity is not sufficient to reach the method detection limits by direct flow injection, a solid phase extraction clean-up and concentration step is described in Annex C.

Общая информация

  • Текущий статус
     : Опубликовано
    Дата публикации
     : 2021-07
    Этап
    : Опубликование международного стандарта [60.60]
  • Версия
     : 1
  • Технический комитет :
    ISO/TC 147/SC 2
    ICS :
    13.060.50 
  • RSS обновления

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  2. Интернет-магазин
  3. Каталог стандартов
  4. МКС
  5. 13
  6. 13.060
  7. 13.060.50
  8. ISO 22104:2021