Metrohm Presents a New, Reliable and Affordable Method for Glyphosate Analysis
1 Nov 2016Metrohm has produced an application for the straightforward determination of the herbicide glyphosate and its primary metabolite AMPA in drinking water by ion chromatography with pulsed amperometric detection.
With a detection limit of approximately 1 µg/L, the method is sensitive enough to comply with limit values in the US, Canada, Australia, and others. A whitepaper provides more details on the method and its application.
Glyphosate and its metabolite AMPA (aminomethylphosphonic acid) are usually determined by HPLC with post-column derivatization and subsequent fluorescence detection (EPA Method 547), or alternatively by ion chromatography coupled with a mass-selective detector. The above-mentioned white paper demonstrates for the first time that ion chromatography with pulsed amperometric detection is a viable, less expensive alternative for determining the glyphosate and AMPA content in water and foodstuffs.