Pesticide Residue Testing

Pesticide residue analysis is a cornerstone of global food safety regulation, directly governing market access for agricultural commodities and compliance with international trade requirements. China's GB 2763 has become one of the most comprehensive national MRL standards globally, EU MRL Regulation (EC) No 396/2005 represents a significant technical trade barrier for exports to European markets, and the US EPA tolerance framework together with Codex Alimentarius standards form the baseline reference for international pesticide residue regulation.

Establishing and validating multi-residue screening methods — typically based on QuEChERS extraction coupled with LC-MS/MS or GC-MS/MS detection — requires broad-coverage, high-purity, accurately assigned pesticide reference standards. The catalog spans insecticides (organophosphates, pyrethroids, neonicotinoids), herbicides (sulfonylureas, triazines), fungicides (triazoles, benzimidazoles), plant growth regulators, acaricides, and biopesticides, covering priority monitored compounds in grains, vegetables, fruits, tea, and herbal medicine matrices. Applications serve food safety testing laboratories, agricultural commodity exporters, and government regulatory testing facilities.

CATO Research Chemicals Inc. offers over 12,200 pesticide residue reference standards with full GB 2763 and EU/US monitoring list coverage, each supplied with assigned-value data and measurement uncertainty reports. Corresponding deuterium-labeled isotope internal standards are available for key analytes, with single-component and custom mixed standard solutions available on request. The majority are in stock for rapid fulfillment of routine laboratory procurement needs.