| 催化动力学电位法测定海产品中微量碘 |
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| 引用本文： | 赵永福,晋晓苹. 催化动力学电位法测定海产品中微量碘[J]. 安徽农业科学, 2011, 39(24): 15010-15012 |
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| 作者姓名： | 赵永福 晋晓苹 |
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| 作者单位： | 1. 贺州学院化学与生物工程系,广西贺州,542800
2. 河南化工职业学院,河南郑州,450042 |
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| 摘 要： | [目的]建立一种测定海产品中微量碘的催化动力学电位法。[方法]采用单因素试验考察了催化动力学电位法测定海产品中微量碘的影响因素,并测定了海带（Laminaria japonica）、紫菜（Porphyra teneraKjellman）和海虾中碘的含量。[结果]建立的催化动力学电位法测定碘含量的线性范围为8-28 ng/ml,方法的检出限为5.2 ng/ml,回收率大于97.0%,相对标准偏差（RSD）小于1.1%,方法准确可靠。采用该法测定的海带、紫菜和海虾中碘的含量分别为31.98、27.38、18.40μg/g,RSD分别为1.48%、0.70%、1.61%。[结论]该研究建立的方法不需要避光,操作简单,温度控制方便,用于海产品中微量碘的测定结果令人满意。
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| 关 键 词： | 催化动力学电位法 甲基紫离子选择性电极 碘 海产品 |
Determination of Micro Amounts of Iodide in Seafood based on Catalytic Kinetic Potentiometric Method |
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| ZHAO Yong-fu et al. Determination of Micro Amounts of Iodide in Seafood based on Catalytic Kinetic Potentiometric Method[J]. Journal of Anhui Agricultural Sciences, 2011, 39(24): 15010-15012 |
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| Authors: | ZHAO Yong-fu et al |
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| Affiliation: | ZHAO Yong-fu et al(Department of Chemistry and Biology Engineering,Hezhou University,Hezhou,Guangxi 542800) |
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| Abstract: | [Objective] The aim was to establish a catalytic kinetic potentiometric method of determining the content of micro amounts of iodide in seafood.[Method] The influencing factors were observed when the catalytic kinetic potentiometric method was used to determine the content of iodide in seafood,and used it to determine the content of iodide in L.japonica,P.tenera Kjellman and sea shrimps.[Result] The linear range of established catalytic kinetic potentiometric method was 8-28 ng/ml when determining the conte... |
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| Keywords: | Catalytic kinetic potentiometric method Methyl violet selective electrode Iodide Seafood |
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