| 多步斜坡升温——恒温平台石墨炉法直接测定葡萄酒中微量铅 |
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| 引用本文： | 孙晓娟.多步斜坡升温——恒温平台石墨炉法直接测定葡萄酒中微量铅[J].理化检验(化学分册),1996,32(2):86-87. |
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| 作者姓名： | 孙晓娟 |
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| 作者单位： | 江苏石油化工学院应化系 常州 |
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| 摘 要： | 研究了一种直接测定葡萄酒中微量铅的方法，以硝酸－磷酸二氢铵体系为基体改进剂，采用多步斜坡并温，恒温平台石墨炉技术，测定了四个国家五种类别葡萄酒中微量铅，回收率９７％～１０４％，精密度优于３．９％。
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| 关 键 词： | 铅 葡萄酒 原子吸收法 多步斜坡升温 |
DIRECT STPF-AAS DETERMINATION OF MICRO-AMOUNTS OF LEAD IN GRAPE WINE BY THE STEPS RAMP PROCEDURE |
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| Sun Xiaojuan.DIRECT STPF-AAS DETERMINATION OF MICRO-AMOUNTS OF LEAD IN GRAPE WINE BY THE STEPS RAMP PROCEDURE[J].Physical Testing and Chemical Analysis Part B:Chemical Analgsis,1996,32(2):86-87. |
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| Authors: | Sun Xiaojuan |
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| Abstract: | The technique of the steps ramp procedure and steady temperature platform graphite furnace (STPF) is decribed for the direct determination of lead in grape wine. The matric modifier is a mixture of 2. 5% NH4H2PO4 and 0. 2% HNO3. The program of HGA and the determination of lead in difference kinds of grape wine were presented in Tab. 1 and Tab. 2 respectively. The recoveries of lead added in wine were 97%-104%,and the relative standard deviation of the entire procedure in the optimum working range were between 0. 8%-3.9%(n=3). |
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| Keywords: | Lead Wine HGA-AAS Steps tamp procedure STPF |
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