Pesticide Multi-Residue Analysis (MRA) – Glyphosate Test
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Price
$315 per analysis
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Turnaround time 7 – 9 Business Days
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Rush Available
Technical data sheet
Print- 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 to bind any metal ions that 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).
- Acceptable matrices
This method is applicable to cereal grains, soybeans, sugar, milk, and products thereof.
- Limit of quantitation
0.025 - 5000 ppm (mg/kg)
- Equipment
LC/MSMS
- Method reference
Please contact us for the method reference.
- Reportable unit
mg/kg (ppm)
- Sample size requirements
20 g
- Information required by submitter
Please provide as detailed of a matrix description as possible for appropriate crop group determination (i.e. Apple Juice, NOT Fruit Juice)
- Additional information
Good sample descriptions and estimates are helpful.
Common Pesticide Multi-Residue Analysis (MRA) – Glyphosate Test Testing Questions
We make every effort to keep our methods and detection limits up to date according to the latest standards and qualifications. If you have any questions regarding the limit of detection/quantification or method references, please contact our Customer Service team at 1-800-245-5615.
Our standard turnaround time is 10 business days for most assays. There are some assays that require a longer turnaround time. We also offer a RUSH service that is half the time of the standard turnaround time of the assay at double the cost of the assay. A few assays that we provide cannot be rushed due to the nature of the test. Please check the specific assay you are interested in regarding the ability to RUSH the turnaround time.
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