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衍生电化学法测定橘皮中的咪酰胺

李静 李红波 胡效亚

食品科学2011,Vol.32Issue(18):246-248,3.
食品科学2011,Vol.32Issue(18):246-248,3.

衍生电化学法测定橘皮中的咪酰胺

Electrochemical Determination of Prochloraz in Orange Peel after Derivatization

李静 1李红波 1胡效亚2

作者信息

  • 1. 盐城工学院化学与生物工程学院,江苏盐城224051
  • 2. 扬州大学化学化工学院,江苏扬州225002
  • 折叠

摘要

Abstract

A method to determine prochloraz in orange peel by electrochemistry analysis after derivatization was developed.Prochloraz was stepwise extracted by acetone and ethyl acetate,and hydrolyzed into electrochemical active 2,4,6-trichlorophenol by pyridine hydrochloride.Differential pulse stripping voltammetry(DPSV) was utilized to determine prochloraz under the optimized conditions pH 4.0 and accumulation at 0 V potential for 300 s.The results showed that oxidative peak current of 2,4,6-trichlorophenol was positively linearly correlated with its concentration within the range of 9.0 × 10-9-8.0 × 10-5 mol/L.The detection limit was 9.7 × 10-10 mol/L,and the recovery between 98.5% and 113.0%.

关键词

衍生/电化学/咪酰胺/橘皮

Key words

derivatization/electrochemistry/prochloraz/orange peel

分类

化学化工

引用本文复制引用

李静,李红波,胡效亚..衍生电化学法测定橘皮中的咪酰胺[J].食品科学,2011,32(18):246-248,3.

基金项目

国家自然科学基金面上基金项目 ()

盐城工学院自然科学基金项目 ()

食品科学

OA北大核心CSCDCSTPCD

1002-6630

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