| 毛细管离子分析法测定蔬菜中的限量元素 |
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| 引用本文： | 舒友琴,徐军.毛细管离子分析法测定蔬菜中的限量元素[J].郑州牧业工程高等专科学校学报,2011,31(2):19-21. |
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| 作者姓名： | 舒友琴 徐军 |
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| 作者单位： | 郑州牧业工程高等专科学校，质量检测与管理系，河南郑州，450011 |
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| 摘 要： | 采用湿法消化处理样品,用毛细管离子分析(CIA)法测定了蔬菜中的限量元素锌、铜、镍、镉和铅,在12mmol.L-1咪唑,8mmol.L-1α-羟基乙酸,pH=4.2的电泳介质中,5种离子在10min内得到了分离,用间接紫外法在214nm处检测,以外标法定量,对样品进行5次测定的RSD在3.1%以下,回收率在95.7%～104.6%之间。方法简便、快速、灵敏、准确。
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| 关 键 词： | 毛细管离子分析 蔬菜 限量元素 |
Determination of Limited Element in Vegetables by Capillary Ion Analysis |
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| SHU You-qin,XU Jun.Determination of Limited Element in Vegetables by Capillary Ion Analysis[J].Journal of Zhengzhou College of Animal Husbandry Engineering,2011,31(2):19-21. |
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| Authors: | SHU You-qin XU Jun |
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| Institution: | SHU You-qin,XU Jun (Zhengzhou College of Animal Husbandry Engineering,Zhengzhou Henan 450011,China) |
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| Abstract: | Capillary ion analysis(CIA) was used to determine limited element in vegetables.In the solution(pH=4.2) containing 12mmol·L-1 of imidazol and 8mmol.L-1 of a-hydroxyacetic acid,Zn,Ni,Cu,Pb and Cd in vegetables were separated in 10 min.Zn,Ni,Cu,Pb and Cd in vegetables were detected at 214nm by indirect UV,and quantified externally.Samples were determined 5 times with RSD lower than 3.1% and 95.7%-104.6% recovery.The result showed that the method is convenient,rapid,sensitive and accurate.It was used in the determination of tea samples with the satisfactory results. |
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| Keywords: | Capillary ion analysis Vegetable limited element |
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