湖北农业科学 ›› 2020, Vol. 59 ›› Issue (17): 150-153.doi: 10.14088/j.cnki.issn0439-8114.2020.17.034

• 检测分析 • 上一篇    下一篇

改进高效液相色谱法测水产品中孔雀石绿残留量

朱志强, 童文羽, 曾智, 张良明, 石义付   

  1. 湖北省水产科学研究所,武汉 430071
  • 收稿日期:2020-02-18 发布日期:2020-10-23
  • 作者简介:朱志强(1985-),男,湖北武汉人,工程师,硕士,主要从事水产品安全分析工作,(电话)027-87286509(电子信箱)zhuzhiqiang1018@163.com。

Improving detection of malachite green residue in aquatic products by HPLC

ZHU Zhi-qiang, TONG Wen-yu, ZENG Zhi, ZHANG Liang-ming, SHI Yi-fu   

  1. Hubei Frisherys Science Research Institute, Wuhan 430071,China
  • Received:2020-02-18 Published:2020-10-23

摘要: 孔雀石绿是一种合成的三苯基甲烷类工业染料,曾被作为杀虫剂和杀菌剂广泛应用于水产养殖业。水产品中孔雀石绿残留量检测的国标方法GB/T 20361—2006在多年检测工作中发现有操作繁琐、回收率和精密度较差的缺点。试验比较了不同提取次数和净化次数对回收率的影响,改进了GB/T 20361—2006的前处理和色谱条件,减少提取次数和净化操作,降低了流速。改进后方法检测限为0.40 μg/kg,回收率提升至81.8%~100.8%,精密度为0.93%~8.32%,均达到并优于国标。

关键词: 水产品, 孔雀石绿, 高效液相色谱法

Abstract: Malachite green, as a synthetic industrial dye of triphenylmethane, has been widely used in aquaculture as an insecticide and fungicide. GB/T20361—2006 for the detection of malachite green residues in aquatic products was found that had some disadvantages, such as tedious operation, poor recovery and precision during years of testing. The effects of different extraction times and purification times on the recovery rate, and improved the pretreatment and chromatographic conditions of GB/T20361—2006,reducing the number of extractions and purification operations reduces the flow rate of the chromatographic method. The improved method has a detection limit of 0.40 μg/kg, a recovery rate of 81.8%~100.8%, and a precision of 0.93%~8.32%, which all meet and exceed the national standard.

Key words: aquatic products, malachite green, HPLC

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