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author:

Wu, Weimin (Wu, Weimin.) [1] | Wu, Yimin (Wu, Yimin.) [2] | Zheng, Minmin (Zheng, Minmin.) [3] | Yang, Liuming (Yang, Liuming.) [4] | Wu, Xiaoping (Wu, Xiaoping.) [5] | Lin, Xucong (Lin, Xucong.) [6] (Scholars:林旭聪) | Xie, Zenghong (Xie, Zenghong.) [7] (Scholars:谢增鸿)

Indexed by:

Scopus SCIE

Abstract:

A new analytical method, pressurized capillary electrochromatography with indirect amperometric detection, has been developed for the determination of some non-electroactive organophosphorus pesticides (OPPs). When 0.1 mmol L-1 of 3,4-dihydroxybenzylamine (DHBA) was added to the mobile phase containing 50% v/v of ACN and 50% v/v of MES buffer (10 mmol L-1, pH 5.5), and +0.9 V (vs. Ag/AgCl) of working potential were used, maximal signal levels of analytes could be achieved. A separation voltage of + 10 kV, a column pressure of 7.0 MPa and a pump flow rate of 0.05 mL min(-1) were selected as the other optimal conditions for separation of six OPPs, namely, dimethoate, methyl parathion, ethyl parathion, chlorpyrifos, chlorpyrifos-methyl, trichlorfon. The OPPs could be separated within 15 min and determined with the detection limits ranging from 0.008 to 0.2 mg/kg. Combining with a solid phase extraction procedure, mean recoveries between 78.9 and 87.2% for vegetable samples and from 81.4 to 98.6% for fruit samples were obtained.

Keyword:

Community:

  • [ 1 ] [Wu, Weimin]Fuzhou Univ, Coll Chem & Chem Engn, Fuzhou 350108, Peoples R China
  • [ 2 ] [Wu, Yimin]Fuzhou Univ, Coll Chem & Chem Engn, Fuzhou 350108, Peoples R China
  • [ 3 ] [Zheng, Minmin]Fuzhou Univ, Coll Chem & Chem Engn, Fuzhou 350108, Peoples R China
  • [ 4 ] [Yang, Liuming]Fuzhou Univ, Coll Chem & Chem Engn, Fuzhou 350108, Peoples R China
  • [ 5 ] [Wu, Xiaoping]Fuzhou Univ, Coll Chem & Chem Engn, Fuzhou 350108, Peoples R China
  • [ 6 ] [Lin, Xucong]Fuzhou Univ, Coll Chem & Chem Engn, Fuzhou 350108, Peoples R China
  • [ 7 ] [Xie, Zenghong]Fuzhou Univ, Coll Chem & Chem Engn, Fuzhou 350108, Peoples R China
  • [ 8 ] [Xie, Zenghong]Xiamen Huaxia Vocat Coll, Xiamen 361024, Peoples R China

Reprint 's Address:

  • 吴晓苹

    [Wu, Xiaoping]Fuzhou Univ, Coll Chem & Chem Engn, Fuzhou 350108, Peoples R China

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Source :

ANALYST

ISSN: 0003-2654

Year: 2010

Issue: 8

Volume: 135

Page: 2150-2156

3 . 9 1 3

JCR@2010

3 . 6 0 0

JCR@2023

ESI Discipline: CHEMISTRY;

JCR Journal Grade:1

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count: 15

SCOPUS Cited Count: 21

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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