中国科技论文在线

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2016年12月21日

【期刊论文】聚苯乙烯膜包覆纳米磁珠固液萃取的技术，实现对传统和有机蔬菜中拟除虫菊酯农药的检测

杨宏顺， Xi Yu， Hongshun Yang

Food Chemistry，2017，217（-）：303-310

2017年01月30日

A detection method using polystyrene-coated magnetic nanoparticles based extraction technique coupled to HPLC was developed for trace amount of pyrethroids residue detection in vegetable matrixes.The recoveries for five kinds of commonly used pyrethroids were in the range of 91.6%–116.2%. The sensitivity and precision of the method were satisfactory with the limits of detection and limits of quantification in the range of 0.0200–0.0392 ng g1 and 0.072–0.128 ng g1, respectively. The intra-day and inter-day relative standard deviations for the recoveries of the analytes were lower than 6.8% and 10.7%, respectively. The nanoparticles can be washed and recycled after use. The results indicate that the developed method was efficient, fast, economical and environmentally friendly. The method was successfully applied to detect the pyrethroids residue in ten pairs of commonly consumed organic and conventional fresh vegetables in Singapore. Pyrethroids residue was detected in four kinds of conventional vegetables and one kind of organic vegetable.

关键词：蔬菜，有机，纳米颗粒，高效液相色谱，拟除虫菊酯，萃取技术;Vegetables， Organic， Nanoparticles， HPLC， Pyrethroids， Extraction technique

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2009年08月30日

【期刊论文】Alterations of FSH-stimulated progesterone production and calcium homeostasis in primarily cultured human luteinizing-granulosa cells induced by fenvalerate

王心如， Jun He， Jianfeng Chen， Ru Liu， Shoulin Wang， Lin Song， Hebron C. Chang， Xinru Wang∗

Toxicology 203(2004)61-68，-0001，（）：

摘要

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关键词： Endocrine disruptor， Pyrethroids， Granulosa cell， Progesterone， Calcium homeostasis

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2005年11月16日

【期刊论文】The involvement of microsomal oxidases in pyrethroid resistance in Helicoverpa armigera from Asia

吴益东， Y. Yanga， Y. Wua， S. Chena， G. J. Devineb， I. Denholmb， P. Jewessc， G. D. Mooresc

，-0001，（）：

摘要

暂无

关键词： Insecticide resistance， Pyrethroids， Monooxygenases， Glutathione S-transferases， Esterases， Helicoverpa armigera

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2005年03月04日

【期刊论文】Separation and Analysis of Diastereomers and Enantiomers of Cypermethrin and Cyfluthrin by Gas Chromatography

刘维屏， WEIPING LIU AND JAY J. GAN*

J. Agric. Food Chem. 2004, 52, 755-761 ，-0001，（）：

摘要

暂无

关键词： Chiral analysis， diastereomer separation， enantiomer separation， synthetic pyrethroids， enantioselectivity

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2005年03月04日

【期刊论文】Determination of Enantiomers of Synthetic Pyrethroids in Water by Solid Phase Microextraction - Enantioselective Gas Chromatography

刘维屏， WEIPING LIU AND JAY J. GAN*

J. Agric. Food Chem. 2004, 52, 736-741，-0001，（）：

摘要

暂无

关键词： Solid-phase microextraction， SPME， chiral analysis， enantiomer separation， synthetic pyrethroids， enantioselective analysis

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2021年05月09日

【期刊论文】Pyrethroid residue determination in organic and conventional vegetables using liquid-solid extraction coupled with magnetic solid phase extraction based on polystyrene-coated magnetic nanoparticles

XiYu， Yang Hongshun， XiYu， Yang Hongshun

Food Chemistry，2017，217（-）：303-310

2017年02月15日

摘要

A detection method using polystyrene-coated magnetic nanoparticles based extraction technique coupled to HPLC was developed for trace amount of pyrethroids residue detection in vegetable matrixes. The recoveries for five kinds of commonly used pyrethroids were in the range of 91.6%–116.2%. The sensitivity and precision of the method were satisfactory with the limits of detection and limits of quantification in the range of 0.0200–0.0392 ng g−1 and 0.072–0.128 ng g−1, respectively. The intra-day and inter-day relative standard deviations for the recoveries of the analytes were lower than 6.8% and 10.7%, respectively. The nanoparticles can be washed and recycled after use. The results indicate that the developed method was efficient, fast, economical and environmentally friendly. The method was successfully applied to detect the pyrethroids residue in ten pairs of commonly consumed organic and conventional fresh vegetables in Singapore. Pyrethroids residue was detected in four kinds of conventional vegetables and one kind of organic vegetable.

关键词： Vegetables OrganicNanoparticles HPLC Pyrethroids Extraction technique

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