TITLE

Analysis of cyprodinil in leek and pepper and its decline under field conditions

AUTHOR(S)
Congyun Liu; Suli Wang; Li Li; Huiyu Zhao; Shuren Jiang; Fengmao Liu
PUB. DATE
August 2011
SOURCE
Environmental Monitoring & Assessment;Aug2011, Vol. 179 Issue 1-4, p209
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
HPLC-UV method for determination of cyprodinil in leek, pepper, and soil was developed and the decline of cyprodinil under field conditions in China was investigated. The samples were extracted with acetonitrile. For leek and pepper samples, further clean-up with a florisil SPE column was necessary. Average recoveries of cyprodinil were found in the range of 82.92-107.43% with relative standard deviations of 2.48-14.55%. The pesticide cyprodinil showed a relatively fast decline rate. The half lives were from 2 to 4 days in leek and pepper, from 2-5 days in soil except in Beijing (14.7 days). So the decline of cyprodinil in leek and pepper was almost same in different experiment plots. However, the decline in soil was much complicated, and affected by the precipitation and other climate condition. The results could provide guidance to safe and reasonable use of this pesticide in agriculture.
ACCESSION #
62613795

 

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