| 原子吸收解吸仪分离测定食品中镉 |
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| 引用本文： | 倪唯唯,邓树建,王万水,刘晓光.原子吸收解吸仪分离测定食品中镉[J].高师理科学刊,1996(4). |
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| 作者姓名： | 倪唯唯 邓树建 王万水 刘晓光 |
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| 作者单位： | 齐市卫生防疫站(倪唯唯)，齐市水利探测设计院(邓树建)，市防疫站(王万水)，齐市鲜奶检测站(刘晓光) |
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| 摘 要： | 应用YAE-2原子吸收解吸仪自动萃取食品中的镉.结果表明,镉在pH8～9的氨缓冲溶液存在的条件下被EDTA富集柱富集,用Imol/L硝酸溶液作洗脱载液,食品镉含量在100～200μg/kg之间时,含量与最大吸光度成线性关系.测定镉含量为0.5mg/kg的食品,标准差为0.0042mg/kg;均值为0.217mg/kg,变异系数1.93%.检出限为5μg/L(以被测液中的镉计).本方法适用于各种食品中镉的分析,具有分析速度快、准确度好、灵敏度高、线性范围宽等优点.是一种在线高速解吸的分离分析技术.
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| 关 键 词： | 镉 食品 原子吸收 解吸 |
(?) and Measure of Cadmium in Food by Atomic Absorption-desorption Meter |
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| Ni Weiwei,Deng Shujian.(?) and Measure of Cadmium in Food by Atomic Absorption-desorption Meter[J].Journal of Science of Teachers＇College and University,1996(4). |
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| Authors: | Ni Weiwei Deng Shujian |
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| Institution: | Ni Weiwei Deng Shujian(?) Antiepidemic (Qiqihar Water Conservancy Survey Designing Institute)Wang Wanshui Liu XiaoGuang(?) Sanitation Antiepidemic S'ation) (Qiqihar Fresh Milk Testing Station) |
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| Abstract: | -2 atomice absorption-desorption meter is used in this paper to the cadmium in food. The resukts show that the cadmium EDTA enrichment column in ammonia buffer solution(pH8~9). HNO, solution as the eiution camier. When cadmium in foodis the content and the maximum value of absorption are in of cadmium in food is 0.5 mg/kg;the standard deviation is average value is 0.217 mg/kg;the coefficient of variability is is 5 u.g/L. The method has a good degree of accuracy, speed,high sensitivity and wide linear range. It's applicable to cadmium in all kinds of food. |
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| Keywords: | Cadmium Food Atomic absorption-desorption |
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