Fast and Sensitive UPLC/MS(MS) Determination of Diquat and Paraquat in Drinking Water
9 Apr 2013

Paraquat and diquat are quaternary ammonium herbicides. Because these compounds are potentially toxic to wildlife and to humans, groundwater and surface water samples are monitored to assure that residue levels meet safety standards. This application note describes an optimized method for determination of paraquat and diquat in drinking water using an Oasis WCX cartridge for SPE prior to fast and sensitive UPLC/MS(MS) analysis.

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