Analytical research on the separation and residue of chiral pesticide triadimenol in fruit and vegetable puree

Zhang, Wenhua; Xie, Weiping; Hou, Jianbo; Hu, Xiaoli; Wang, Peng; Zhang, Yaqin; Xu, Defeng

doi:10.1002/jssc.202100303

Cited by 6 publications

(2 citation statements)

References 26 publications

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“…While elucidating the ecological destiny of stereoisomers of chiral pesticides, establishing chiral analytical methodologies for the environmental or toxicological profiling of FLC stereoisomers assumes paramount importance. Hence, precedents have been set through the development of an UPLC method for the separation of triadimenol stereoisomers, alongside analytical techniques for quantifying the residues of triadimenol stereoisomers in infant food pureés derived from pumpkin, apple, and tomato, 21 in addition to methods for analyzing the four stereoisomers of triazolinone in vegetables. 18 These methodologies adeptly elucidate the dissipation dynamics and ultimate residue profiles of different chiral pesticide isomers, thereby offering commendable preventive measures for ecological and biosafety.…”

Section: ■ Introductionmentioning

confidence: 99%

Chiral Herbicide Fluorochloridone: Absolute Configuration, Stereoselective Bioactivity, Toxicity, and Degradation in the Potatoes

Li,

Zhao,

Chen

et al. 2024

J. Agric. Food Chem.

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Fluorochloridone (FLC) is a chiral herbicide that has four stereoisomers. This study systematically assessed the stereoselectivity of FLC to reveal the selective environmental behavior of its four isomers. Absolute configuration confirmation, evaluation of stereoselective bioactivity toward monocotyledonous and dicotyledonous weeds, toxicity to Danio rerio, and the stereoselective degradation in the potato system under field conditions of FLC were conducted. The four FLC stereoisomers were effectively separated on a superchiral S-AD column. The absolute configurations of the four stereoisomers of FLC were confirmed as (−)-(3S, 4S), (+)-(3S, 4R), (−)-(3R, 4S), and (+)-(3R, 4R)-FLC using single-crystal X-ray diffraction. The activities of the four stereoisomers were in the order of (−)-(3S, 4S)-FLC > (+)-(3R, 4R)-FLC > (+)-(3S, 4R)-FLC > (−)-(3R, 4S)-FLC, and the rate of selective degradation were in the order of (−)-(3R, 4S)-FLC > (+)-(3R, 4R)-FLC > (−)-(3S, 4R)-FLC > (+)-(3S, 4S)-FLC. The toxicity of the isomers were in the order of (−)-(3R, 4S)-FLC > (+)-(3R, 4R)-FLC > (−)-(3S, 4S)-FLC > (+)-(3S, 4R). Based on the results of bioactivity, toxicity, and degradation behavior assessments, the stereoisomer mixture containing (3R,4R)-FLC and (3S,4S)-FLC was concluded to be a better option than racemic FLC for increasing bioactivity and reducing usage.

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Section: ■ Introductionmentioning

confidence: 99%

Chiral Herbicide Fluorochloridone: Absolute Configuration, Stereoselective Bioactivity, Toxicity, and Degradation in the Potatoes

Li,

Zhao,

Chen

et al. 2024

J. Agric. Food Chem.

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“…SFC has received widespread attention as a high-efficiency chromatographic separation technology. The main mobile phase of this technique is supercritical carbon dioxide (CO 2 ), and the density and polarity of the mobile phase can be changed by adjusting the system backpressure, chromatographic column temperature, and the ratio of organic solvents, so as to achieve precise control of the resolution of the target [17], which has obvious advantages in the application of chiral separation [18][19][20][21]. Nowadays, the application of SFC technology for the separation and residue determination of fenpropathrin enantiomers has not been reported.…”

Section: Introductionmentioning

confidence: 99%

Research method of rapid determination of chiral pesticide fenpropathrin enantiomers in fruit and vegetable puree by supercritical fluid chromatography

Zhang¹,

Hou³

et al. 2022

J of Separation Science

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A method is first established for the separation and determination of fenpropathrin enantiomer residues in apple puree, strawberry puree, and tomato puree considered a supplementary food for infants by supercritical fluid chromatography. After the sample was extracted with acetonitrile and cleaned up by a solid‐phase extraction column, then it was separated by a CHIRALPAK AD‐3 chiral column with gradient elution at a flow rate of 1.5 mL/min using methanol and supercritical carbon dioxide as the mobile phase, detected by ultraviolet detector at 230 nm wavelength and quantified with the external standard method. The limits of quantification of the two fenpropathrin enantiomers were both 0.2 mg/kg, the linear ranges were 1.0–20.0 mg/L with linear correlation coefficients greater than 0.9992, the recoveries in the spiked samples at 0.2, 0.4 and 2.0 mg/kg were from 80.6 to 105%, and the relative standard deviation reached 2.6–7.7%. This method has the advantages of convenient operation, good resolution, and environmental protection, which can satisfy the requirement of determination for fenpropathrin enantiomer residues in fruit and vegetable puree as supplementary food for infants.

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Simultaneous determination of enantiomeric residues of flutriafol, hexaconazole and diniconazole in fruits and vegetables on a bridged cyclodextrin-based column by HPLC

Huang,

Zeng,

et al. 2024

Microchemical Journal

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Analytical research on the separation and residue of chiral pesticide triadimenol in fruit and vegetable puree

Cited by 6 publications

References 26 publications

Chiral Herbicide Fluorochloridone: Absolute Configuration, Stereoselective Bioactivity, Toxicity, and Degradation in the Potatoes

Chiral Herbicide Fluorochloridone: Absolute Configuration, Stereoselective Bioactivity, Toxicity, and Degradation in the Potatoes

Research method of rapid determination of chiral pesticide fenpropathrin enantiomers in fruit and vegetable puree by supercritical fluid chromatography

Simultaneous determination of enantiomeric residues of flutriafol, hexaconazole and diniconazole in fruits and vegetables on a bridged cyclodextrin-based column by HPLC

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