Assay preparations for mycotoxins in the field of agricultural products, food, feed and biological matter; Assay preparations for detecting pesticide residue in agricultural products, namely, food and feedstuffs, and biological matter, namely, blood, urine and tissue; Assay preparations for detection of contaminants in agricultural products, food, feed and biological matter; Chemical reagents for use in analytical tests in connection with scientific research and quality control, other than fo...