本文件规定了饮用水和淡水样品中12种微囊藻毒素变体（微囊藻毒素LR、-LA、-YR、-RR、-LY、-WR、-HtyR、-HilR、-LW、-LF、[Dha7]-微囊藻毒素LR和[Dha7]-微囊藻毒素RR）在0.05µg/l至1.6µg/l之间的定量方法。该方法可用于进一步测定微囊藻毒素，前提是对每种微囊藻毒素的色谱和质谱检测分析条件进行了测试和验证。使用内部标准校准，通过LC-MS/MS对样品进行分析。购买本文件时可获得的所有当前修订均包含在购买本文件中。

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.All current amendments available at time of purchase are included with the purchase of this document.