Method for detecting residuals of 13 organotin compounds in food

Abstract

The invention discloses a method for detecting residuals of 13 organotin compounds in food, and aims at detecting the 13 organotin compounds in the food. The 13 organotin compounds are methyltin trichloride, monobutyltin trichloride, monooctyltin trichloride, dimethyltin dichloride, di-n-propyltin-dichloride, dibutyltin dichloride, diphenyltin dichloride, dioctyltin dichloride, tributyltin monochloride, triphenyltin monochloride, tricyclohexyltin monochloride, trioctyltin monochloride and tetrabutyltin. The method comprises the steps of carrying out sampling; carrying out pretreatment; and carrying out gas chromatograph-mass spectrometer GC-MS measurement on the pretreated target object. The method fills the gaps in the technical field of food detection and the low detection limit can be up to 0.06 mg / kg; the adopted gas chromatograph-mass spectrometer GC-MS combines the high separation ability of the chromatography and the high selectivity and high sensitivity of the mass spectrometry, so that the correctness of micro and trace measurement is ensured; and the method is high in automation degree and is capable of simplifying the operation and improving the working efficiency of thedetection and the working quality of the analysis and test.

Description

technical field [0001] The invention relates to the technical field of food detection, in particular to a detection method for residues of 13 organic tin compounds in food. Background technique [0002] Methyltin trichloride, butyltin trichloride, octyltin trichloride, dimethyltin dichloride, di-n-propyltin dichloride, dibutyltin dichloride, diphenyltin dichloride, dioctyltin dichloride, Chlorotributyltin, monochlorotriphenyltin, monochlorotricyclohexyltin, monochlorotrioctyltin, tetrabutyltin, these 13 organic tin compounds are widely used in industrial additives (mainly including food additives, feed additives), agricultural pesticides , coatings and antifungal agents for daily necessities, etc., have certain toxicity and will have a toxic effect on the human body. Organotin compounds can cause systemic poisoning and even death through skin or brain edema. [0003] At present, my country's GB5009.215-2016 "National Food Safety Standard - Determination of Organotin in Foo...

AI Technical Summary

Problems solved by technology

[0003] At present, my country's GB5009.215-2016 "National Food Safety Standard - Determination of Organotin in Food" lacks methyl trichloride, octyltin trichloride, di-n-propyl dichloride, and diphenyl dichloride in food. The limit requirements of tin, dioctyltin dichloride, tricyclohexyltin monochloride, trioctyltin monochloride, and tetrabutyltin lead to the above organic tin compounds being easily ignored by people, causing food poisoning

Images