GC-MS/MS analysis method for dinitraniline pesticide residues in mainstream cigarette smoke particulate matter

A technology of cigarette mainstream smoke and dinitroaniline, which is applied in the field of detection of pesticide residues in cigarette smoke, can solve the problems of lower pesticide recovery rate, inaccurate test results, and low pesticide residues, and achieve simplified sample processing methods and simplified Sample processing steps, the effect of strong anti-interference ability

Active Publication Date: 2016-07-06
CHINA TOBACCO ZHEJIANG IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The pretreatment of this method is relatively cumbersome
[0006] The amount of pesticide residues in the particulate matter of mainstream smoke is relatively low. During the pretreatment process, it is generally necessary to concentrate the extract to facilitate detection and analysis. However, cumbersome pretreatment may lead to a decrease in the recovery rate of some pesticides and inaccurate detection results.

Method used

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  • GC-MS/MS analysis method for dinitraniline pesticide residues in mainstream cigarette smoke particulate matter
  • GC-MS/MS analysis method for dinitraniline pesticide residues in mainstream cigarette smoke particulate matter
  • GC-MS/MS analysis method for dinitraniline pesticide residues in mainstream cigarette smoke particulate matter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Step (1): Prepare pesticide standard solution:

[0054] Weigh 0.01g (accurate to 0.1mg) of various pesticide standard substances, put them in the same 10mL volumetric flask, dissolve them with acetone and constant volume to obtain 1mg / mL mixed standard solution Ⅰ; accurately pipette 0.2mL mixed standard solution Ⅰ in In a 100mL volumetric flask, dilute to volume with acetonitrile to prepare a mixed standard solution II with a concentration of 2μg / mL for each pesticide; accurately pipette 0.01mL, 0.02mL, 0.05mL, 0.1mL, 0.2mL, 0.5mL and 1mL mixed standard solution For solution II, put it in a 10mL volumetric flask, add 100μL of internal standard solution accurately, and dilute to volume with acetonitrile to obtain a series of standard working solutions. Concentrations of prepared series of standard solutions are: 2ng / mL, 4ng / mL, 10ng / mL, 20ng / mL, 40ng / mL, 100ng / mL, 200ng / mL.

[0055] The prepared standard working solutions of different concentrations were injected into G...

Embodiment 2

[0076] As described in Example 1, another cigarette sample B was selected, and the content of the target pesticide in the particulate phase of mainstream smoke was measured, as shown in Table 4.

[0077] Table 4

[0078]

[0079]

[0080] Note: "—" means not detected

Embodiment 3

[0082] As described in Example 1, another cigarette sample C was selected, and the content of the target pesticide in the particulate phase of mainstream smoke was measured, as shown in Table 5.

[0083] table 5

[0084]

[0085] Note: "—" means not detected

[0086] It is found from each embodiment that the method can quickly and accurately detect various pesticide residues in the particulate matter of cigarette mainstream smoke, and the measurement results are accurate and reproducible; the simultaneous detection of dinitroaniline pesticide residues can be realized, and the detection efficiency is high. high.

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Abstract

The invention discloses a GC-MS/MS analysis method for dinitraniline pesticide residues in mainstream cigarette smoke particulate matter.The method comprises the following steps that 1, a pesticide standard substance solution is prepared, determination is performed through a gas chromatography-tandem mass spectrum, and fitting is performed to obtain a standard curve; 2, a Cambridge filter trapping the mainstream cigarette smoke particulate matter is vibrated and extracted through acetonitrile, an extracting solution is subjected to dispersive liquid-liquid microextraction to perform centrifugal treatment, and water and carbon tetrachloride are added into the extracting solution to be subjected to dispersive liquid-liquid microextraction, wherein the addition volume size of water to carbon tetrachloride is 1:3-5:0.1-0.3; 3, the centrifuged precipitation facies is determined on the condition of the gas chromatography-tandem mass spectrum, and the determined result is substituted into the standard curve to obtain the content of pesticide residues in the mainstream cigarette smoke particulate matter.The dispersive liquid-liquid microextraction technology and the GC-MS/MS are combined, and the sample processing step is simplified, so that the detection result is more accurate and stable, and the pesticide residue situation in reaction flue gas can be stably and objectively reflected.

Description

technical field [0001] The invention belongs to the technical field of detection of pesticide residues in cigarette smoke, and mainly relates to the detection technology of dinitroaniline pesticide residues in the particulate matter of cigarette mainstream smoke, specifically a kind of dinitroaniline in the particulate matter of cigarette mainstream smoke GC-MS / MS analysis method for pesticide-like residues. Background technique [0002] The use of pesticides is unavoidable in the process of planting, production, processing and storage of tobacco, resulting in residues of related pesticides on the tobacco leaves, and part of the pesticides will be sucked into the mainstream smoke during the smoking process of cigarettes. Wan Yilun et al. (Wan Yilun, Zhang Hongfei, Gao Chuanchuan, et al. Migration behavior of 126 pesticides in cigarettes during burning and smoking [J]. Guizhou Agricultural Sciences, 2015(05): 101-106.) Research shows that cut tobacco The average migration ra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02G01N30/06
CPCG01N30/02G01N30/06G01N2030/025G01N2030/062
Inventor 陈晓水汤晓东蒋佳磊夏骏斯文王雨凝朱书秀许高燕赵路灿洪梨梨
Owner CHINA TOBACCO ZHEJIANG IND
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