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中国农学通报

中国农学通报 ›› 2011, Vol. 27 ›› Issue (11): 66-69.

所属专题： 水产渔业； 畜牧兽医

• 水产 渔业 • 上一篇    下一篇

海水鱼配合饲料中无机砷测定方法研究

伍云卿 涂杰峰 陈卫伟   

  • 收稿日期:2010-11-05 修回日期:2011-02-18 出版日期:2011-05-15 发布日期:2011-05-15
  • 基金资助:

    福建省基本科研专项资助项目

Study on the determination method of inorganic arsenic in formula feed of marine fish

  • Received:2010-11-05 Revised:2011-02-18 Online:2011-05-15 Published:2011-05-15

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摘要：

摘要:　本文研究了海水鱼配合饲料中无机砷的测定方法。采用6mol/L盐酸溶液为介质，在70℃水浴中浸提1h，再用活性炭吸附分离浸提液中有机砷等有机物质后，以HG-AFS法测定海水鱼配合饲料及其原料样品中无机砷含量。方法前处理简单、快速，方法检出限0.08mg/kg；加标回收率85.5%～109.7%；精密度（RSD）2.6%～9.8%；线性范围0～400μg/L。用相同样品在4个实验室间对本法进行复核验证结果表明，精密度和准确度均符合检测要求，用于实际样品的检测,结果令人满意。

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Abstract:

Abstract: This essay researched the determination method of inorganic arsenic in formula feed of marine fish. Applied 6mol/L hydrochloric acid as medium, picked up 1h from 70℃, then used active carbon to absorb organic substance such as organic arsenic, applied HG-AFS method to determine the inorganic arsenic content in formula feed of marine fish. the preparation of this method is simple and fast. The detection limit 0.08mg/kg; the recovery range was 85.5%～109.7%; The RSD was 2.6%～9.8%; linear scope0～400μg/L . After examined in 4 different labs using same sample, the result indicated that both the accuracy and nicety of this method satisfied the requirements of determination.The proposed method has been applied to the determination of actual sample with satisfactory results.

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