Automated solid phase extraction by Promochrom
Before the release of draft EPA Method 1633 in 2021, there were few standardized methods for PFAS in nonpotable water. ISO 21675 was published in 2019 to cover a list of 30 PFAS compounds in drinking, natural and waste water containing less than 2 g/L of solids1. The main challenge of extracting samples with particulates is SPE cartridge clogging, which requires additional steps of dividing a sample between cartridges and pooling the extracts.
This application note presents a streamlined extraction of non-potable water samples using PromoChrom’s high-capacity inline filters along with the automated SPE-03 system for the 30 compounds of ISO 21675, as well as 3 additional pertinent PFAS compounds.
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