| 微波消解-石墨炉原子吸收光谱法测定壳聚糖膜中铜离子含量 |
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| 引用本文： | 于 刚,秦 朋,陈丕茂,秦传新,杨贤庆.微波消解-石墨炉原子吸收光谱法测定壳聚糖膜中铜离子含量[J].食品科学,2015,36(2):201-203. |
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| 作者姓名： | 于 刚 秦 朋 陈丕茂 秦传新 杨贤庆 |
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| 作者单位： | 1.中国水产科学研究院南海水产研究所，国家水产品加工技术研发中心，农业部水产品加工重点实验室，广东 广州 510300；
2.上海海洋大学水产与生命学院，上海 201306 |
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| 基金项目： | 广东省海洋渔业科技推广专项（A201301B04） |
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| 摘 要： | 目的：建立微波消解-石墨炉原子吸收光谱测定壳聚糖膜中铜离子含量的方法。方法：采用微波消解法对样品膜进行消解，在波长327.4 nm处，用石墨炉测定样品模中铜离子的含量。结果：本方法线性关系良好，相关系数r2=0.999 3，检出限为0.096 mg/g。铜离子回收率为72.78%～90.91%。结论：该方法具有快速、简单、准确、无污染等优点，可用于测定壳聚糖膜对铜离子的选择性吸附量。
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| 关 键 词： | 微波消解 石墨炉原子吸收光谱法 壳聚糖膜 铜离子 |
Determination of Copper Ion in Chitosan Membrane by Microwave Digestion and Graphite Furnace Atomic Absorption Spectrophotometry |
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| YU Gang,QIN Peng,CHEN Pimao,QIN Chuanxin,YANG Xianqing.Determination of Copper Ion in Chitosan Membrane by Microwave Digestion and Graphite Furnace Atomic Absorption Spectrophotometry[J].Food Science,2015,36(2):201-203. |
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| Authors: | YU Gang QIN Peng CHEN Pimao QIN Chuanxin YANG Xianqing |
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| Affiliation: | 1. Key Laboratory of Aquatic Product Processing, Ministry of Agriculture, National Research and Development Center for Aquatic Product
Processing, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China;
2. College of Fisheries and Life Science, Shanghai Ocean University, Shanghai 201306, China |
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| Abstract: | Objective: To establish a method for the determination of copper ion in chitosan membrane by microwave
digestion and graphite furnace atomic absorption spectrophotometry. Method: The chitosan membrane was dissolved by
microwave digestion before analysis by graphite furnace atomic absorption spectrophotometry at a wavelength of 327.4 nm.
Result: This method had good linearity with a correlation coefficient (r2) of 0.999 3, and the limit of detection (LOD) was
0.096 μg/g. Recoveries from spiked samples ranged from 72.78% to 90.91%. Conclusions: This method is rapid, simple,
accurate pollution-free and suitable for the determination of copper in chitosan membrane. |
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| Keywords: | microwave digestion graphite furnace atomic absorption spectrophotometry (GFAAS) chitosan membrane copper ion |
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