T/SQIA 006-2022 Rapid Detection of Diazinon in Vegetables and Fruits by Colloidal Gold Immunochromatography
T/SQIA 006-2022
Basic Information
Scope
Main technical content: This document specifies a rapid detection method for the residues of Diazinon in vegetables and fruits using colloidal gold immunoassay. This document is applicable to the rapid detection of Diazinon residues in vegetables and fruits. Note 1: Vegetables include cabbage, broccoli, spinach, leaf lettuce, head lettuce, tomatoes, carrots, scallions, and cauliflowers. Note 2: Fruits include plums and cherries. This method uses the principle of competitive inhibition immunoassay. After extraction, the Diazinon in the sample binds to the specific antibody labeled with colloidal gold, which inhibits the binding of the antibody and the antigen on the detection line (T line) of the test strip, resulting in a change in the color intensity of the detection line (T line). By comparing the color intensity of the detection line (T line) with that of the control line (C line), the Diazinon residues in the sample can be qualitatively analyzed.