As of June 12, 2018 our Privacy Policy has been updated. For individuals in the European Union, CIL uses cookies on this website. Please review the new privacy statement to see how. By continuing to use this website you agree to us using cookies in accordance with our privacy statement. Click here for the new privacy statement..OK

Corporate Overview

The Standard – January 2012

Determination of Glyphosate and AMPA

Glyphosate, the most commonly used herbicide in current production, is widely used to control pests in corn and soybean fields. Little is known about the fate of glyphosate after it has entered the soil after spraying, so it – and its degradation products AMPA and glufosinate – have become compounds of interest for study. The USGS has introduced a method to determine the presence of certain pesticides in water using isotope dilution, and more information is available about this process here.

Glyphosate, the active ingredient in Roundup®, has been commercially available for four decades as an agricultural pesticide. Millions of pounds are used each year, with little information available on the fate of the pesticide once it has performed its intended task. Analytical methods available for determining the fate of other pesticides were unsuitable for glyphosate analysis, and until fairly recently information was scant.

With millions of pounds of herbicide being used yearly, a method for determining the fate of this material needed to be developed that covered, not only glyphosate itself but also the main breakdown product aminomethylphosphonic acid, more commonly called AMPA. As the herbicide degrades over time after use, AMPA levels provide some measure of information as to the fate of the parent molecule. The USGS developed a method to detect glyphosate and AMPA in the early 2000s; a new method 5-A10 has been put into place that utilizes stable labeled isotopes to further quantitate the levels of these compounds.

CIL has had isotopically labeled standards available for these compounds for many years:
(All products listed below are 1.2 mL)

Part number    Description  Price
CNLM-4666-1.2 Glyphosate (2-13C, 99%; 15N, 98+%)
100 µg/mL in H2O (chemical purity 96%)
$375
CDNLM-6786-1.2 Aminomethylphosphonic acid (AMPA)
(13C, 99%;15N, 98%;methylene-D2,98%)
100 µg/mL in H2O
$475
     

 






 

 



Stable Isotope Newsletters | Cambridge Isotope Laboratories
stable isotope, stable isotope labeled compounds, environmental contaminant standards
CIL has been ready to help with the analytical standards critical to the task of defining and resolving any major environmental contamination problems.