Determination of Chlorinated Phenoxy Acid Herbicides in Tobacco by Modified QuEChERS Extraction and High-Performance Liquid Chromatography/Tandem Mass Spectrometry

Yang, Fei; Bian, Zhaoyang; Chen, Xiaoshui; Liu, San San; Liu, Yang; Tang, Gangling

doi:10.5740/jaoacint.12-467

Cited by 16 publications

(9 citation statements)

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“…The choice of the extraction solvent was one of the most important decisions in developing a multiresidue extraction method (Yang et al, ). According to the characteristics of pesticides, four solvents were selected as the extraction solvent in this research, e.g.…”

Section: Resultsmentioning

confidence: 99%

A liquid chromatography–tandem mass spectrometry method to simultaneously determinate dichlorvos and phoxim in tobacco

Qin

Luo

Chen

et al. 2019

Biomedical Chromatography

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A simple pretreatment method with liquid chromatography–tandem mass spectrometry (LC–MS/MS) was developed and validated to simultaneously determine dichlorvos and phoxim in tobacco and soil matrices. Satisfactory linearity (R2 ≥ 0.9991) of the method was obtained for both analytes. The limits of detection and limits of quantification for dichlorvos and phoxim in three matrices were 0.0015–0.006 and 0.005–0.02 mg/kg, respectively. Average recoveries were 78.24–92.21% for dichlorvos and 76.62–100.51% for phoxim in soil, green tobacco leaves and cured tobacco leaves. The intra‐ and inter‐day relative standard deviations were <6%. The established method was successfully applied for the residual analysis of dichlorvos and phoxim in real soil and tobacco samples. The results indicated that the established method could be used to detect trace amounts of dichlorvos and phoxim in tobacco. The data could also help the Chinese government establish maximum residue limits of dichlorvos and phoxim on tobacco and establish proper and safe use of dichlorvos and phoxim on tobacco plants in China.

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Section: Resultsmentioning

confidence: 99%

A liquid chromatography–tandem mass spectrometry method to simultaneously determinate dichlorvos and phoxim in tobacco

Qin

Luo

Chen

et al. 2019

Biomedical Chromatography

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“…Detection of pesticide residues in fruit, vegetable, and tobacco with GC with electron capture detection (ECD), GC–MS/MS and LC–MS/MS has been reported in many studies . However, the samples which were injected into GC or LC usually contain components harmful to the equipment and affect the analysis results.…”

Section: Introductionmentioning

confidence: 99%

“…Measurement of pesticides in tobacco by GC–MS/MS and LC–MS/MS has been widely reported . However, little information about the analysis of multipesticide residues by online SEC–GC–MS/MS in tobacco is available.…”

Section: Introductionmentioning

confidence: 99%

Analysis of pesticide residues in tobacco with online size exclusion chromatography with gas chromatography and tandem mass spectrometry

et al. 2016

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An ultrasensitive method for the simultaneous analysis of pesticides residues in tobacco was developed with online size exclusion chromatography with gas chromatography and tandem mass spectrometry. Tobacco samples were extracted with the solvent mixture of cyclohexane and acetone (7:3, v/v) and centrifuged. Then, the supernatant liquors were injected directly into the online size exclusion chromatography with gas chromatography and tandem mass spectrometry without any other purification procedures after being filtered with a 0.22 μm organic phase filter. The matrix interferences were effectively removed and recoveries of most pesticides were in the range of 72-121%. Especially, for chlorothalonil, the analysis efficiency of this method was much more favorable than that of the general method, in which dispersive solid-phase extraction was used as an additional purified procedure. In addition, the limits of quantitation of this method were from 1 to 50 μg/kg. Therefore, a rapid, cost-effective, labor-saving method was proposed in the present work, which was suitable for the analysis of 41 pesticide residues in tobacco.

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“…Different methods have been developed to determine trace amounts of herbicides in tobacco. Current separating methods utilize GC or LC and various sensitive detectors such as electron‐capture detection , flame photometric detection , photo‐diode array (PDA) detection , and MS (single or tandem) . Every method has its unique virtues and drawbacks.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous determination of herbicide residues in tobacco using ultraperformance convergence chromatography coupled with solid‐phase extraction

Guo

Bian

Zhang

et al. 2015

J of Separation Science

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A time-saving and organic solvent efficient method to simultaneously determine six kinds of herbicide residues in tobacco using solid-phase extraction for sample clean-up and preconcentration and the highly sensitive ultraperformance convergence chromatography method was developed. Parameters for ultraperformance convergence chromatography, including the choice of stationary phase and modifiers, autobackpressure regulator pressure, column temperature, and the flow rate of mobile solvents, were optimized. The herbicide residues of napropamide, alachlor, quizalofop-ethyl, diphenamid, metolachlor, and clomazone in tobacco samples were successfully separated and detected at levels as low as 0.0043-0.0086 mg/kg within 5 min using a nonpolar high strength silica C18 selectivity for bases column and methanol as the cosolvent of the mobile phase of carbon dioxide (75-99.9%, v/v). Analysis of tobacco samples had recoveries of 69.8-95.0%, limit of quantitation of 0.0127-0.0245 mg/kg, limit of detection of 0.0043-0.0086 mg/kg, and correlation coefficient of >0.9990. Results support this method as an efficient alternative to current methodologies for the determination of herbicide residues in tobacco.

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Determination of Chlorinated Phenoxy Acid Herbicides in Tobacco by Modified QuEChERS Extraction and High-Performance Liquid Chromatography/Tandem Mass Spectrometry

Cited by 16 publications

References 0 publications

A liquid chromatography–tandem mass spectrometry method to simultaneously determinate dichlorvos and phoxim in tobacco

A liquid chromatography–tandem mass spectrometry method to simultaneously determinate dichlorvos and phoxim in tobacco

Analysis of pesticide residues in tobacco with online size exclusion chromatography with gas chromatography and tandem mass spectrometry

Simultaneous determination of herbicide residues in tobacco using ultraperformance convergence chromatography coupled with solid‐phase extraction

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