IEH Laboratories is a leader in pesticide residue analysis using methods developed by the U. S. Environmental Protection Agency (EPA), the U. S. Food and Drug Administration (FDA), United States Pharmacopeia (USP), AOAC and the California Department of Food and Agriculture (CDFA). We can analyze raw agricultural products, processed foods, plant tissues, spices, herbs, nutraceuticals, soils, water and many more matrices for hundreds of insecticides, fungicides, herbicides and acaricides.