Rapid Simultaneous Determination of 43 Pesticide Residues in Schizonepeta tenuifolia by Gas Chromatography Mass Spectrometry

Zhou, Guo-wei; Li, Yongmei; Liu, Chun-ni; Ren, Haigang; Li, Haiying

doi:10.1155/2021/8934998

Cited by 4 publications

(2 citation statements)

References 24 publications

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“…At present, the SPE method can effectively separate pesticides and organic contaminants in a complex matrix. Zhou et al [ 18 ] developed a reliable protocol for quantitating 43 pesticides in Schizonepeta tenuifolia cleaned with Pesticarb/NH 2 cartridges. Li et al [ 19 ] screened for 439 pesticides in fruits and vegetables with Carb/NH 2 cartridges and obtained satisfactory results.…”

Section: Resultsmentioning

confidence: 99%

Residual Change of Four Pesticides in the Processing of Pogostemon cablin and Associated Factors

Liu,

Zheng,

Liu

et al. 2023

Molecules

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Before use as medicines, most traditional Chinese medicine (TCM) plants are processed and decocted. During processing, there may be some changes in pesticide residues in TCM. In recent years, reports have studied the changes of pesticides during the processes of boiling, drying and peeling of TCM materials but have rarely involved special processing methods for TCM, such as ethanol extraction and volatile oil extraction. The changes of carbendazim, carbofuran, pyridaben and tebuconazole residues in common processing methods for P. cablin products were systemically assessed in this study. After each processing step, the pesticides were quantitated by UPLC-MS/MS. The results showed amount decreases in various pesticides to different extents after each processing procedure. Processing factor (PF) values for the four pesticides after decoction, 75% ethanol extraction and volatile oil extraction were 0.02~0.75, 0.40~0.98 and 0~0.02, respectively, which indicated that residual pesticide concentrations may depend on the processing technique. A risk assessment according to the hazard quotient with PF values showed that residual pesticide amounts in P. cablin were substantially lower than levels potentially posing a health risk. Overall, these findings provide insights into the safety assessment of P. cablin.

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Section: Resultsmentioning

confidence: 99%

Residual Change of Four Pesticides in the Processing of Pogostemon cablin and Associated Factors

Liu,

Zheng,

Liu

et al. 2023

Molecules

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“…The improvement of high-resolution mass spectrometry (HRMS) in resolution and obtaining appropriate selectivity by improving mass resolution provides new opportunities for residue analysis. Initially, GC and Q-TOF instruments were coupled through the atmospheric pressure chemical ionization (APCI) interface to achieve this goal [ 16 – 18 ], but recently, a special GC and electron ionization (EI) Orbitrap MS system was introduced. The system combines the peak capacity and chromatographic resolution of gas chromatography with the sub-ppm mass accuracy of the Orbitrap system to provide higher resolution (15,000, 30,000, 60,000, and 120,000 at half-maximum (FWHM) at m / z 200).…”

Section: Introductionmentioning

confidence: 99%

Rapid Screening of 352 Pesticide Residues in Chrysanthemum Flower by Gas Chromatography Coupled to Quadrupole-Orbitrap Mass Spectrometry with Sin-QuEChERS Nanocolumn Extraction

Wang

Meng

et al. 2022

Journal of Analytical Methods in Chemistry

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To analyze pesticide residues, GC coupled with quadrupole-Orbitrap MS (GC-Orbitrap-MS) has become a powerful tool because of its unique characteristics of accurate mass full-spectrum acquisition, high resolution, fast acquisition rates, and overcoming matrix interference. This paper presents an efficiency evaluation of GC-Orbitrap-MS for identification and quantitation in the 352 pesticide residues analysis of chrysanthemum flowers in full-scan mode. A streamlined pretreatment approach using one-step extraction and dilution was used, which provided high-throughput processing and excellent recovery. The samples were extracted using acetonitrile. The extracted solution was purified by a Sin-QuEChERS Nano column to suppress the matrix in chrysanthemum flowers and determined by GC-Orbitrap-MS. The calibration curves for the 352 pesticides obtained by GC-Orbitrap-MS were linear in the range of 0.5–200 μg·kg−1, with the correlation coefficients higher than 0.99. The limits of detection (LODs) and the limits of quantification (LOQs) for the 352 pesticide residues were 0.3–3.0 μg·kg−1 and 1.0–10.0 μg·kg−1, respectively. The average recoveries in chrysanthemum flower at three levels were 95.2%, 88.6%, and 95.7%, respectively, with relative standard deviations (RSDs) of 7.1%, 7.5%, and 7.2%, respectively. Lastly, the validated method and retrospective analysis was applied to a total of 200 chrysanthemum flower samples bought in local pharmacies. The proposed method can simultaneously detect multipesticide residues with a good performance in qualitative and quantitative detection.

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Emerging analytical techniques for analysis of pesticides

Yahaya,

Zain,

Miskam

et al. 2024

Green Chemistry in Food Analysis

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Rapid Simultaneous Determination of 43 Pesticide Residues in Schizonepeta tenuifolia by Gas Chromatography Mass Spectrometry

Cited by 4 publications

References 24 publications

Residual Change of Four Pesticides in the Processing of Pogostemon cablin and Associated Factors

Residual Change of Four Pesticides in the Processing of Pogostemon cablin and Associated Factors

Rapid Screening of 352 Pesticide Residues in Chrysanthemum Flower by Gas Chromatography Coupled to Quadrupole-Orbitrap Mass Spectrometry with Sin-QuEChERS Nanocolumn Extraction

Emerging analytical techniques for analysis of pesticides

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