Price of the test:
$270 per analysis
Acceptable Matrices:
Cereal Grains, Soybeans, Sugar and Milk
Limit of Detection:
0.010 ppm (mg/kg)
Sample Size Requirements:
20 grams
Equipment:
QTRAP LC-MS/MS
Reportable Units:
ppm (mg/kg)
Turn Around Time:
7-9 Business Days (matrix dependent)
5 Business Days for Rush (matrix dependent)
Is Rush Available?
Yes
Method Reference:
Please contact for Method Information
Method Description:
Glyphosate is a broad spectrum herbicide applied widely to many crops such as corn, soybean, and oats. It may also be applied as a drying agent prior to harvesting crops. Glyphosate may degrade into aminomethylphosphonic acid (AMPA) via microbial degradation in the soil. AMPA may be taken up in biota, but often is measured at much lower concentrations than glyphosate. Glyphosate and AMPA are highly polar and zwitterionic compounds requiring unique extraction and analytical chromatographic conditions apart from a traditional multi-residue analysis (MRA) method. The extraction requires the use of an acidified solvent containing a chelating agent to first precipitate the protein, and then to bind any metal ions which may interact with the target analytes. The extract is cleaned with solid phase extraction and acquired with a solvent calibration curve by liquid chromatography tandem mass spectrometry (LC-MS/MS).