Test Price:
$620 per analysis
Acceptable Matrices:
Baking mixes, beans, cereals, doughs, flaxseed, fruit and vegetable juices, fruits, grains, pasta and semolina, pastries, popcorn (no butter), soups, sugar (corn syrup), vegetables, water, nuts, hay, fresh (not dried) herbs
Please contact us for matrix-specific questions.
Unacceptable Matrices:
Honey, nutraceuticals, raw ingredients with oil base, starches, fiber ingredients, supplements, vitamin premixes, dairy, meat
Unacceptable matrices will be sent to a third-party lab for testing.
Limit of Detection:
0.01 ppm – 0.2 ppm (matrix dependent)
Exact levels are reported for detected analytes only.
A full list of measured limits of detection (LODs) is available as a supplemental report for an additional cost of $100
Sample Size Requirements:
500 grams
Equipment:
LC/MSMS
GC/TOFMS
GC/MSMS
Reportable Units:
ppm (mg/kg)
Turnaround Time:
7-9 business days (Standard – matrix dependent)
5 business days (Rush – matrix dependent)
Is rush testing available?
Yes
Method Reference:
AOAC 2007.01 with modifications
Method Description:
Pesticides in this screen are extracted using modifications of the QuEChERS (Quick, Easy, Cheap, Effective, Rugged, and Safe) method. The QuEChERS method, originally developed by the FDA and USDA, is an AOAC Official Method (2007.01).
Modifications were necessary for the extraction of pesticides in dry commodities (J. Agric. Food Chem, 2010, 58, 5959-5972) and high-fat commodities (J. Agric. Food Chem, 2010, 58, 5950-5958).
A mixture of acetonitile and water (for dry commodities) or acidified acetonitrile (for high moisture fruits, vegetables, and other samples with high water content), is used to extract any pesticide residue from the sample. The sample and solvents are then treated with an extraction media to isolate the pesticide residues in the acetonitrile. The extract is cleaned using dispersive solid-phase extraction. Cleaned extracts are analyzed by Capillary Gas Chromatography Time of Flight Mass Spectrometry (GC/TOFMS), Ultra Performance Liquid Chromatography Tandem Mass Spectrometry (UPLC/MSMS), and Gas Chromatography Tandem Mass Spectrometery (GC/MSMS). Identification, confirmation, and quantification are performed using both technologies. Sample extracts are compared against a matrix-matched standard. Method and instrument performance standards are analyzed with each sample to ensure quality results.
Information Required by Submitter:
Please provide fat estimates.
Please do not write with a marker or a Sharpie on the sample or sample packaging as this may contaminate the sample and affect the results.
Additional Information:
If an incurred residue is detected, it must be validated prior to being reported as a verified residue. A non-verified residue is a presumed detection or estimated concentration. The concentration reported could change with further validation work. Validation of a non-verified residue can be requested within 30 days from the time the residue is reported. Validation testing has a cost of $200 for up to five analytes.
Samples will be reported as follows:
| Non-Detect | Samples with no detected residues |
| Verified Residues | < LOQ: Residues between the limit of detection (LOD) and the limit of quantitation (LOQ), with the LOQ following in parenthesis. |
| Samples with residues detected above the LOQ will be reported with a value. | |
| Non-Verified Residues | < LOQ: Residues between the limit of detection (LOD) and the limit of quantitation (LOQ), with the LOQ following in parenthesis. |
| Samples with residues detected above the LOQ will be reported with a value. | |
| Approaching LOD: Analyte is approaching the LOD for the method. The LOD will follow in parenthesis. | |
| Detected but not quantified: Analyte has been detected but is unable to be quantified. |
Certain analytes may be excluded from a screen due to specific matrix interference. For a complete list, please contact us.
The analytes found in the expanded screen are chosen based on customer requests, national regulatory requirements, and international regulatory requirements.
This test is ISO/IEC 17025 accredited through A2LA Certificate #2769.01
Contact Us:
If you have questions about our testing services, please contact us at +1 (800) 245-5615.