| 植物样品干法灰化Vc助溶对原子吸收测定的影响 |
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| 引用本文： | 杨剑虹,李宗澧,胡艳燕.植物样品干法灰化Vc助溶对原子吸收测定的影响[J].西南农业大学学报,2007,29(1):53-55. |
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| 作者姓名： | 杨剑虹 李宗澧 胡艳燕 |
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| 作者单位： | [1]西南大学资源环境学院,重庆400716 [2]西南大学化学化工学院,重庆400716 |
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| 基金项目： | 重庆市岩溶山地生态脆弱过程及修复技术研究;重庆市重大攻关课题. |
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| 摘 要： | 在常规的干法灰化中，采用Vc助溶。大多数植物样品都能获得清亮的待测溶液·用原子吸收光谱测定灰分元素。变异系数在0．455～2．55之间，标准加入法的回收率在98．5％～103％之间.与不加Vc助溶的干法灰化和常规的湿法灰化测定结果比较，精密度和准确度得到了较大提高，且实验中未观察到Vc对原子化效率和测定背景值产生影响．
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| 关 键 词： | 原子吸收光谱 植物样品 干法灰化 |
| 文章编号： | 1000-2642（2007）01-0053-03 |
| 修稿时间： | 2006-10-16 |
Solubility-Promoting Effects of Ascorbic Acid in Atomic Absorption Spectrometric Determination of Plant Samples Ashed by Dry Ashing |
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| YANG Jian-hong, LI Zong-li, HU Yan-yan.Solubility-Promoting Effects of Ascorbic Acid in Atomic Absorption Spectrometric Determination of Plant Samples Ashed by Dry Ashing[J].Journal of Southwest Agricultural University,2007,29(1):53-55. |
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| Authors: | YANG Jian-hong LI Zong-li HU Yan-yan |
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| Institution: | 1. School of Resources and Environment, Southwest University, Chongqing 400716, China 2. School of Chemical Engineering, Southwest University, Chongqing 400716, China |
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| Abstract: | In the present experiment, most plant samples ashed by conventional dry ashing were solved completely when ascorbic was added. Atomic absorption spectrometric determination of the solutions showed that the variation coefficients ranged from 0. 455 to 2.55 and the recoveries ranged from 98. 5% to 103%, which were better in precision and accuracy than the results obtained using conventional dry ashing without the addition of ascorbic acid, or wet digestion. No effects of ascorbic acid on atomization and background signals were detected. |
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| Keywords: | atomic absorption spectrometry plant sample dry ashing |
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