| 石墨炉原子吸收法快速测定食品中铝和镍 |
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| 引用本文： | 樊津江.石墨炉原子吸收法快速测定食品中铝和镍[J].河南科学,2008,26(1):35-38. |
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| 作者姓名： | 樊津江 |
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| 作者单位： | 郑州市环境保护监测中心站,郑州,450007 |
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| 摘 要： | 选择磷酸氢二铵和抗坏血酸为基体改进剂,石墨炉原子吸收测定食品中铝和镍,抗坏血酸能抑制碳化物生成,加强氧化铝和氧化镍还原,磷酸氢二铵有利于测定结果的稳定.方法快速、简便、灵敏度高,铝和镍的检出限分别为25 pg/0.004 4 A和12 pg/0.004 4 A,加标回收率铝分别为94.0%～108%之间;镍回收率在93.0%～109%之间.线性范围分别为0～120 ng/mL,0～100ng/mL。
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| 关 键 词： | 石墨炉原子吸收 磷酸氢二氨 抗坏血酸 铝 镍 |
| 文章编号： | 1004-3918（2008）01-0035-04 |
| 收稿时间： | 2007-10-16 |
| 修稿时间： | 2007年10月16 |
A Repid Graphit Furnace Atomic Absorption Spcetrometric Method for the Determination of Aluminum an Nie in Food |
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| FAN Jin-jiang.A Repid Graphit Furnace Atomic Absorption Spcetrometric Method for the Determination of Aluminum an Nie in Food[J].Henan Science,2008,26(1):35-38. |
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| Authors: | FAN Jin-jiang |
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| Institution: | Environmental Protection Monitoring Center of Zhengzhou;Zhengzhou 450007;China |
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| Abstract: | Ascorbic acid and(NH4)2HPO4 were used as matrix modifiers when determining Al and Ni in food by GFAAS.Ascorbic acid can prevent the forming of carbides and strengthen the reduction of Al oxides and Ni oxides.(NH4)2HPO4 was of advantage to the stability of the determining results.A rapid and simple method with high sensitivity was established.Detective limits for Al and Ni were 25 pg/0.004 4 A and 12 pg/0.004 4 A respectively.Recoveries for Al and Ni were 94.0 %～108 % and 93.0 %～109 %.Linear scope for Al was 0～120 ng/mL and for Ni is 0～100 ng/mL. |
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| Keywords: | GFAAS (NH4)2HPO4 ascorbic acid Al Ni |
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