| 微分电位溶出法测定食用油中镉含量 |
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| 引用本文： | 董建民,章建军,刘红伟,伍季. 微分电位溶出法测定食用油中镉含量[J]. 河南科学, 2010, 28(12): 1546-1548 |
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| 作者姓名： | 董建民 章建军 刘红伟 伍季 |
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| 作者单位： | [1]河南省食品质量安全控制工程技术研究中心,郑州450002 [2]郑州轻工业学院食品与生物工程学院,郑州450002 |
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| 基金项目： | 河南省重点科技攻关项目 |
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| 摘 要： | 建立了微分电位溶出法测定食用油中镉含量的方法.优化了试验条件如pH值、电沉积电位、平衡电位等,线性范围:镉0～16 ng;检出限0.24 ng/mL,RSD=2.4%(n=7).该法测定食品样品结果与石墨炉原子吸收法一致.
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| 关 键 词： | 微分电位溶出法 食用油 镉 |
Simultaneous Determination on Cadmium in Edible Oil by Differential Potentiometric Stripping Analysis |
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| Dong Jianmin,Zhang Jianjun,Liu Hongwei,Wu Ji. Simultaneous Determination on Cadmium in Edible Oil by Differential Potentiometric Stripping Analysis[J]. Henan Science, 2010, 28(12): 1546-1548 |
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| Authors: | Dong Jianmin Zhang Jianjun Liu Hongwei Wu Ji |
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| Affiliation: | 1.The Engineering Research Center of Food Quality and Safety Control of Henan Province,Zhengzhou 450002,China; 2.Zhengzhou Uniwersity of Light Industry Food and Bioengineering,Zhengzhou 450002,China) |
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| Abstract: | The method of determining cadmium conten in edible oil by differential potentiometric stripping analysis was established and the experimental conditions were optimized.The linear range of the method was 0～16 ng,its detection limit was 0.24 ng/mL and its RSD was 2.4 %（n=7）.Thecadmium content in flour determined by this method had no obvious difference from that determined by graphite furnace atomic absorption spectrometry. |
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| Keywords: | differential potentiometric stripping edible oil cadmium |
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