Glyphosate, AMPA, and Glufosinate Method of Analysis: OGRL LCGY

Science Center Objects

Glyphosate and glufosinate are herbicides used for weed and vegetation control. AMPA, aminomethylphosphonic acid, is a degradation product of glyphosate. Since the introduction of glyphosate resistant (round-up ready) corn and soybeans glyphosate has become the most widely used herbicide in the world.

LCGY: Glyphosate, AMPA, and Glufosinate Method

  • Sample collection requirements: 2- 125mL 4oz amber glass bottles with Teflon lined caps per sample.
  • Instrumentation: Liquid Chromatography/Tandem Mass Spectrometry
  • Method established in the USGS Laboratory Evaluation Policy(LEP)
  • data results uploaded to QWDX upon request
Compound NameReporting LimitParameter CodeMethod CodeUSGS Method ReportCAS #
Glyphosate0.02 µg/L62722LCM57O-2141-091071-83-6
Aminomethylphosphonic Acid (AMPA)0.02 µg/L62649LCM57O-2141-091066-51-9
Glufosinate0.02 µg/L62721LCM57O-2141-0977182-82-2