Method for rapidly screening and quantitatively measuring pesticide residues in cigarettes and tobacco through filter-head-type solid-phase extraction and GC-QTOF/MS combined

Abstract

The invention provides a method for rapidly screening and quantitatively measuring pesticide residues in cigarettes and tobacco through filter-head-type solid-phase extraction and GC-QTOF / MS combined,and belongs to the technical field of detection of the pesticide residues. According to the adopted technical scheme, high-flux rapid screening of the pesticide residues can be achieved without standard substance comparison; meanwhile, according to the method, the tedious pesticide standard solution preparation process is effectively simplified, the working efficiency is improved greatly, the types and number of pesticides can further be expanded according to practical working needs, and convenient and flexible effects are achieved; and the method is easy and convenient to operate, short in consumed time, good in accuracy and capable of meeting requirements of qualitative and quantitative detection of the multiple pesticide residues in the cigarettes and tobacco to provide reliable ways for rapid screening and quantitative measuring work of the various pesticide residues in the cigarettes and tobacco, and has the good practical application value.

Description

technical field [0001] The invention belongs to the technical field of pesticide residue detection, and in particular relates to a method for rapid screening and quantitative determination of pesticide residues in tobacco by filter head type solid phase extraction combined with GC-QTOF / MS. Background technique [0002] In recent years, due to the abuse of chemical pesticides in production, the problem of pesticide residues has become an important factor affecting the quality and safety of agricultural products. Pesticide residues in shredded tobacco will transfer to the smoke with a certain mobility or undergo chemical reactions during the smoking process of cigarettes to produce new harmful substances. Therefore, the issue of pesticide residues in tobacco has always been the focus of attention of the tobacco industry and society. The focus of international and domestic trade inspections. Many countries and international organizations have formulated maximum residue limit (...

AI Technical Summary

Problems solved by technology

SPE technology has shown obvious advantages in processing samples with complex matrices, with better purification effect and more accurate quantification, but the steps are cumbersome and time-consuming

The QuEChERS technology has obvious advantages in processing a large number of samples due to its simple operation steps, short time consumption, and less consumption of chemical reagents. However, although QuEChERS saves time and effort, its ability to remove matrix interference is limited, causing damage to the instrument Reduces certain pollution, shortens the maintenance cycle of the instrument, and increases maintenance costs

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