| Na~+-Ti(SO_4)_2法检测草鱼中孔雀石绿残留 |
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| 引用本文： | 钱科蕾,胡鲲,杨先乐. Na~+-Ti(SO_4)_2法检测草鱼中孔雀石绿残留[J]. 上海海洋大学学报, 2010, 0(1) |
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| 作者姓名： | 钱科蕾 胡鲲 杨先乐 |
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| 作者单位： | 上海海洋大学水产与生命学院;上海海洋大学国家水生动物病原库; |
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| 基金项目： | 现代农业产业技术体系建设专项资金(nycytx-49-17); 公益性行业科研专项经费(nyhyzx07-042) |
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| 摘 要： | 首次建立了Na+-Ti(SO4)2法检测草鱼中孔雀石绿残留的方法:孔雀石绿溶于浓硫酸显黄色,稀释后显暗黄色,Ti(SO4)2使其褪色,加入Na+变为白色沉淀,依据沉淀量对孔雀石绿残留进行定量分析。优化实验条件,采用pH=7.4、硫酸钛和氯化钠的浓度均为2.0 mol/L时,可有效地检测孔雀石绿残留。方法学实验结果表明:该方法最低检测量为0.08 mg/kg,在草鱼肌肉和肝脏中的回收率分别为65.00%~75.63%,63.75%~71.35%,相对标准偏差分别为4.82%~1.89%,4.93%~1.97%。该方法快速、简单、灵敏、准确,依据白色沉淀仅凭肉眼即可进行初筛,适合于快速检测孔雀石绿在水产品中的残留。
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| 关 键 词： | Na+-Ti(SO4)2法 孔雀石绿 残留 检测 |
Determination of malachite green residue in grass carp tissues by Na~+-Ti(SO_4)_2 |
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| QIAN Ke-lei,HU Kun,YANG Xian-le,(.College of Fisheries,Life Science,Shanghai Ocean University,Shanghai,China .State Collection Center of Aquatic Pathogen,China. Determination of malachite green residue in grass carp tissues by Na~+-Ti(SO_4)_2[J]. Journal of Shanghai Ocean University, 2010, 0(1) |
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| Authors: | QIAN Ke-lei HU Kun YANG Xian-le (.College of Fisheries Life Science Shanghai Ocean University Shanghai China .State Collection Center of Aquatic Pathogen China |
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| Abstract: | In this paper,Na+-Ti(SO4)2 method to detect residue of malachite green in grass carp was first established:Malachite green dissolved in concentrated sulfuric acid yellow,diluted significantly dark yellow,Ti(SO4)2 makes it fade,a white precipitate by adding Na +,malachite green residues based on the amount of precipitation for the quantitative.Optimization of experimental conditions,we choose pH=7.4,2.0 mol/L of titanium sulfate and sodium chloride,it can be effective in detecting residues of malachite green... |
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| Keywords: | method of Na+-Ti(SO4)2 malachite green residue detection |
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