T/SQIA 003-2022 Rapid Detection of Fenpropimorph in Vegetables and Fruits by Colloidal Gold Immunochromatography

Scope

Main technical content: This document specifies a rapid detection method for fenpropimorph residues in vegetables and fruits using colloidal gold immunoassay. This document is applicable to the rapid detection of fenpropimorph residues in vegetables and fruits. Note 1: Vegetables include garlic, onions, scallions, chives, cabbage, Brussels sprouts, cauliflower, broccoli, spinach, leaf lettuce, head lettuce, oilseed rape, celery, cabbage, solanaceous vegetables (except tomatoes and peppers), tomatoes, peppers, cucumbers, pickled cucumbers, zucchini, bitter melon, loofah, winter melon, pumpkin, beans, pod peas, carrots, sweet potatoes. Note 2: Fruits include citrus fruits (except oranges, tangerines, and grapefruits), apples, pears, hawthorn, loquat, peaches, nectarines, grapes, olives, dragon fruit, strawberries, kiwis, plums, watermelon, melons (except watermelon and cantaloupe), and bananas. This method uses the principle of competitive inhibition immunoassay. After extraction, fenpropimorph in the sample binds to the specific antibody labeled with colloidal gold, inhibiting 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 of the detection line (T line). By comparing the color of the detection line (T line) with that of the control line (C line), a qualitative analysis of fenpropimorph in the sample can be conducted.

Development Information

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