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- Title
Simplified analysis of glyphosate and aminomethylphosphonic acid in water, vegetation and soil by liquid chromatography-tandem mass spectrometry.
- Authors
Marek, LeEtta J; Koskinen, William C
- Abstract
BACKGROUND There is a need for a simple, fast, efficient and sensitive method for analysis of glyphosate and its degradate aminomethylphosphonic acid ( AMPA) in diverse matrices such as water, vegetation and soil. RESULTS Aqueous extracts from water, vegetation and soil were passed through reverse-phase and cation-exchange columns and directly injected into a tandem mass spectrometer using only a guard column for separation. Extraction efficiencies from the three matrices were >80% for both glyphosate and AMPA. The method reporting levels ( MRLs) for glyphosate in water, vegetation and soil were 3.04 µg L−1, 0.05 mg kg−1 and 0.37 mg kg−1 respectively. AMPA MRLs were 5.06 µg L−1 for water, 0.08 mg kg−1 for vegetation and 0.61 mg kg−1 for soil. CONCLUSIONS A validated, simple and efficient liquid chromatography-tandem mass spectrometry ( LC-MS/ MS) method for routine analysis of glyphosate and AMPA in water, vegetation and soil that uses minimal sample handling and clean-up will facilitate the additional environmental research needed to address the continuing concerns related to increasing glyphosate use. Published 2013. This article is a U.S. Government work and is in the public domain in the USA.
- Subjects
GLYPHOSATE; LIQUID chromatography-mass spectrometry; EXTRACTION (Chemistry); GLYPHOSATE in water; SEPARATION (Technology)
- Publication
Pest Management Science, 2014, Vol 70, Issue 7, p1158
- ISSN
1526-498X
- Publication type
Article
- DOI
10.1002/ps.3684