PrimusLabs utilizes current FDA PAM, EPA and AOAC methodologies for its pesticide analysis. These, coupled with our internal Standard Operating Procedures (SOP), adherence to the Chain of Custody for all samples from sample collection to analysis, the use of high quality, high purity analytical standards, utilization of quality equipments such as gas chromatographs (GC), high performance liquid chromatographs (HPLC) and mass spectrometers (MS), ensure accurate and reproducible analysis.

The equipment used by PrimusLabs is configured for the detection of organochlorines, organophosphates, organonitrates, organosulfates and methyl carbamates. Based upon the extraction methods and equipment utilized, well over 250 compounds as listed, in the FDA's Pesticide Analytical Manual Volume I Table 302-A, can be analyzed for and recovered by PrimusLabs. Utilizing all of the above and employing highly qualified, well-trained and dedicated personnel assures that the client obtains accurate and timely analytical results.

Click here to see ISO 17025 Accreditation

A "Certified" program is a pre-harvest sampling and analysis program in which PrimusLabs personnel collect a representative sample of the commodity from the field and maintain a strict chain of custody from the field to the laboratory for analysis. A product is "Certified" when it meets applicable government standards.

Click here to see List of Certified Whole Commodities

The "Inspected" program is a post-harvest sampling and analysis program in which PrimusLabs personnel collect a representative sample from the loading dock, cooler or distribution center (again utilizing the chain of custody from the sample collection point to the laboratory). Based upon favorable findings, this program can warrant that any pesticide residues detected within the lot analyzed are within established government tolerances.

A "Tested" program is available to any individual or firm concerned with possible pesticide residues that may be present on a specific shipment or commodity. A sample is provided to PrimusLabs by the client, analyzed and the results are then reported to the client.

FDA Import Detention
Occasionally when FDA pulls samples at the border and finds pesticide residues, your product or ranch will be put on FDA Import Detention without Physical Examination. Call PrimusLabs and we will be able to pull the samples and conduct the analysis needed to get you back in business as soon as possible.

How to schedule sampling for a FDA sample

Client Sampling:
Guidelines for Sampling to be Performed by the Client
Client Sampling Guidelines:

If new customer with PrimusLabs – Credit Application

PrimusLabs offers trained field samplers to pull pesticide samples in accordance with PrimusLabs’ in-house Standard Operating Procedures (SOPs).

To schedule sampling:



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Primus Group, Inc. is a privately held investor-owned California corporation providing microbiological and pesticide residue analysis of food, database management services, and management of third party auditing schemes.