T/SZTIC 002-2022 Fast detection of carbofuran in Chinese medicinal herbs - colloidal gold immunochromatography method

Scope

Main technical content: This method is aimed at detecting the residues of Carbofuran in traditional Chinese medicines. Representative traditional Chinese medicines with high risk of Carbofuran pesticide residues were selected as suitable matrices, including wolfberry, mint, Lonicera japonica, Codonopsis pilosula, and Angelica sinensis. According to the "Technical Guidelines for Evaluating Rapid Food Detection Methods" (No. [2017]43 of the National Medical Products Administration), the minimum detection level (detection limit) for substances with national standard limits should be less than or equal to the limit specified. Therefore, the detection performance (qualitative limit) of this method is set according to the quantitative limit specified in the "Chinese Pharmacopoeia 2020 Edition, Part IV, 0212 Determination of Crude Drugs and Herbal Extracts". The detection limits for wolfberry, mint, Lonicera japonica, Codonopsis pilosula, and Angelica sinensis are set at 0.05mg/kg. The blank samples used in this study were purchased from the JD.com shopping platform and samples from farmers' markets. Those wolfberry, mint, Lonicera japonica, Codonopsis pilosula, and Angelica sinensis confirmed by reference methods to be free of Carbofuran were used as negative blank matrices. Positive samples were obtained by directly adding appropriate amounts of standard substances to the blank samples to obtain samples containing certain concentrations of the target substance.

Development Information

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