DANSK DS/ISO 20179 PDF

This International Standard specifies a method for the determination and quantification of microcystins in raw water (containing biomass) and treated water such as tap water. The method described is validated for MCYST-RR, MCYST-YR, and MCYST-LR. It is also applicable for the determination of several structure variants [9] of these microcystins, but an unambiguous identification cannot be made due to the lack of commercially available standards and due to co-elution.
The threshold value of 1 µg/l MCYST-LR in water proposed by the WHO can be followed after microcystin enrichment using SPE (SPE = solid phase extraction).