| 微波消解-火焰原子吸收法测定菠菜中铜含量的研究 |
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| 引用本文： | 张培旗,冀新花.微波消解-火焰原子吸收法测定菠菜中铜含量的研究[J].安徽农学通报,2009,15(17):210-211,236. |
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| 作者姓名： | 张培旗 冀新花 |
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| 作者单位： | 1. 郑州轻工业学院食品与生物工程学院,河南郑州,450002
2. 原阳县质量技术监督局,河南原阳,453500 |
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| 摘 要： | 应用微波消解对菠菜湿样中铜元素进行了微波消解研究,并采用原子吸收法测定其含量。结果显示,消解液体积为10mL,溶剂比（硝酸∶双氧水）（V∶V）为4∶1,消解时间为8m in,消解压力为2.4Mpa,功率为1000 W时消解效果最好,在最佳微波消解条件下,进行了精密度实验和回收率实验。结果表明,所得铜的回收率在98.2%~101.80%,精密度的RSD为0.49%;微波消解法测定菠菜中铜含量,具有快速、简便等特点,测定结果令人满意。
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| 关 键 词： | 微波消解 火焰原子吸收法 菠菜 铜 |
Studies on the Microwave Digestion When Determine Copper in Spinach by Flame Atomic Absorption Spectrophotometry |
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| Zhang Peiqi et al..Studies on the Microwave Digestion When Determine Copper in Spinach by Flame Atomic Absorption Spectrophotometry[J].Auhui Agricultural Science Bulletin,2009,15(17):210-211,236. |
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| Authors: | Zhang Peiqi |
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| Institution: | School of Food and Biology Engineering;Zheng Zhou Light Industry College;Zhengzhou 450002;China |
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| Abstract: | To investigate the conditions of microwave digestion for determining Copper in spinach by flame atomic absorption spectrophotometry. The samples were microwavely digested under different conditions. The optimum parameters for microwave digestion were that, the volume of digestion solution was 10mL, the reagent proportion for HNO3 and H202 was 4： 1, the digestion time was 8rain, the digestion pressure was 2.4Mpa and the digestion powder was 1000 W. The recovery were 98.2% 101.8% an RSD of percision was 0. 49%. The content of Copper in assayed spinach was 10. 5μg/g. Microwave digestion was a time - saving and practical pretreatment of samples determining. |
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| Keywords: | Microwave digestion flame atomic absorption spectrophotometry spinach Copper |
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