A sensitive and selective method for the determination of flumorph residues in vegetables and fruits by HPLC–ESI-MS/MS

Wang, Yansong; Fan, Suhua; Cui, Xiaoling; He, Mengchang; Zhang, Fengqing; Yang, Chunhui; Zhang, Chunye; Ji, Ma

doi:10.1016/j.talanta.2011.09.004

Cited by 8 publications

(3 citation statements)

References 22 publications

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“…Pesticide residues are commonly analysed using a variety of technologies for analysing pesticides in fruits and vegetables (Esparza et Wang et al 2011). High resolution quadrupole time-of-ight (Q-TOF) mass spectrometry (MS) has enabled new possibilities for pesticide analysis, recently (Liu et al 2021; Wang et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Occurrence of Nine Pesticide Residues in Table Grapes and Exposure Assessment in Shandong Province, China

Nie

Jian

et al. 2023

Preprint

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Shandong is a significant region for grape production in China, but the presence of pesticide residues in table grapes represents a major concern for consumer health. This study aimed to investigate pesticide residues and exposure in table grapes from Shandong Province. Of the 86 survey samples, pesticides were detected in 80 (93.0%), all above the limit of quantification (LOQ) of residues. The most commonly detected pesticide was Dimethomorph, which was found in 65 (75.6%) of the samples in a concentration range from 0.007 to 4.27 mg/kg. The results were evaluated according to the maximum residue levels (MRLs) set by Chinese regulation. Among the contaminated samples, 6.98% exceeded the MRLs and more than one pesticide contamination was found in 65 (75.6%) of the samples. The short-term and long-term risks associated with consuming these grapes were both below 10%, indicating no significant threat to human health. Nevertheless, strict regulation of pesticide residues in grapes is necessary.

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Section: Introductionmentioning

confidence: 99%

Occurrence of Nine Pesticide Residues in Table Grapes and Exposure Assessment in Shandong Province, China

Nie

Jian

et al. 2023

Preprint

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“…For example, Nagai, Yamamoto, and Wariishi (2012) has reported a method for identification and quantification of fructooligosaccharides in tobacco leaves using HPLC-MS=MS. Compared to the reported methods, HPLC-MS=MS detection has the ability to provide information on molecular weight, peak purity, and partial structure (Beste, Burkhardt, and Kaever 2012;Jimenez Giron et al 2012;Tran, Hu, and Ong 2013;Y. Wang et al 2011).…”

Section: Introductionmentioning

confidence: 99%

Determination of Fructooligosaccharides in Infant Formula by Ultra-High Performance Liquid Chromatography–Tandem Mass Spectrometry

Jiang

Chen

et al. 2014

Analytical Letters

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Infant formula provides a good source of fructooligosaccharides, which are considered to be functional ingredients of food due to their positive effects on gastrointestinal function. This study presents a simple and specific ultra-high performance liquid chromatography-tandem mass spectrometry method for the ultrasensitive determination of three fructooligosaccharides in infant formula. The analytes were extracted using acetonitrile-water solutions. The compounds were separated with an amide column by gradient elution using acetonitrile and water as mobile phases. The identification and quantification were achieved by using electrospray ionization tandem mass spectrometry in negative ion mode with multiple reaction monitoring. Accuracy, precision, limits of quantification, and limits of detection of the method were obtained. Under the optimal conditions, all calibration curves for fructooligosaccharides targets showed good linearity (R 2 ! 0.998). The limits of detection and quantification were below 0.82 and 2.74 ng mL À1 , respectively. The recoveries of the method ranged from 98.5% to 104.4%. To the knowledge of the authors, this is the first quantitative determination of fructooligosaccharides in infant formula by ultra-high performance liquid chromatography-tandem mass spectrometry. The method may be suitable for the determination of trace concentrations of fructooligosaccharides in other food.

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“…Some of them have found widespread use in recent years in China, for the prevention of diseases and insect pests of fruit, vegetable and corn, which may endanger environmental water and drinking water. Wang et al 11 determined FLUM in vegetables and fruits, FLUM residues were detected in 70% of the samples analyzed and the highest concentration level was 1.83 mg kg À1 in tomato sample. To our knowledge, it is the first report on trace analysis of ORY, METO, SYP, CAR, CYF, FENO, MAN, FLUT and FLUM in water samples.…”

Section: Introductionmentioning

confidence: 99%

A simple and sensitive method for simultaneous analysis of multiresidual fungicides in water samples by HPLC-ESI-MS/MS

Wang

Fan

et al. 2012

Anal. Methods

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A sensitive multiresidual analytical method for simultaneous analysis of 9 strobilurin fungicides and 13 amide fungicides in water samples was developed and optimized. The method was based on solid-phase extraction (SPE) followed by high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS). In this method, different mobile phase modifiers were investigated to enhance ionization efficiency and affect chromatographic separation. The following parameters that affect the SPE procedure efficiency were optimized: the column type, the wash solvent and the elution solvent. Qualitative and quantitative detection of the analytes were carried out under multiple reaction monitoring (MRM) in positive ionization mode after chromatographic separation on a Symmetry C18 (150 mm Â 2.1 mm Â 3.5 mm) column. The recoveries of the SPE ranged from 70.18 to 108.87%, all recoveries were acceptable, with relative standard deviation (R.S.D.) #16.71%. The limits of quantification (LOQ, S/N ¼ 10) varied between 0.003 and 0.03 mg L À1 (except for fenhexamid, 0.3 mg L À1 ). The developed and optimized method was successfully applied for the analysis of environmental water samples as well as tap water samples in China, influenced by agriculture. The most frequently detected fungicides were azoxystrobin, metalaxyl and dimethomorph (Z, E) in the investigated samples, the highest concentration level of metalaxyl was 0.217 mg L À1 in the Pu river.

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A sensitive and selective method for the determination of flumorph residues in vegetables and fruits by HPLC–ESI-MS/MS

Cited by 8 publications

References 22 publications

Occurrence of Nine Pesticide Residues in Table Grapes and Exposure Assessment in Shandong Province, China

Occurrence of Nine Pesticide Residues in Table Grapes and Exposure Assessment in Shandong Province, China

Determination of Fructooligosaccharides in Infant Formula by Ultra-High Performance Liquid Chromatography–Tandem Mass Spectrometry

A simple and sensitive method for simultaneous analysis of multiresidual fungicides in water samples by HPLC-ESI-MS/MS

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