| 硝酸一次消解同时测定土壤中Cd、As、Hg的方法研究 |
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| 引用本文： | 谢锋,何锦林,谭红,邓秋静,宋春然,陈安宁,吉玉碧. 硝酸一次消解同时测定土壤中Cd、As、Hg的方法研究[J]. 土壤通报, 2006, 37(2): 340-342 |
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| 作者姓名： | 谢锋 何锦林 谭红 邓秋静 宋春然 陈安宁 吉玉碧 |
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| 作者单位： | 1. 贵州大学,贵州,贵阳,550003;贵州省理化测试分析研究中心,贵州,贵阳,550002
2. 贵州省理化测试分析研究中心,贵州,贵阳,550002 |
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| 摘 要： | 硝酸在水浴中一次性消解土壤样品,用石墨炉原子吸收测定镉、原子荧光光谱法同时测定砷和汞。其检出限镉为0.053 ng m l-1、砷为0.011 ng m l-1、汞为0.008 ng m l-1,线性范围镉为0~4 ng m l-1、砷为0~40ng m l-1、汞为0~2 ngm l-1。回收率在93.0~104.0%。本方法简便了消煮过程,一次消解能同时测定土壤中的多种重金属。
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| 关 键 词： | 消化 石墨炉原子吸收 原子荧光 重金属 |
| 文章编号： | 0564-3945(2006)02-0340-03 |
| 修稿时间： | 2004-11-23 |
Determination of Cadmium,Arsenic and Mercury in Soil with Nitric Acid Digestion Technique |
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| XIE Feng,HE Jin-lin,TAN Hong,DENG Qiu-jing,SONG Chun-ran,CHEN An-ning,JI Yu-bi. Determination of Cadmium,Arsenic and Mercury in Soil with Nitric Acid Digestion Technique[J]. Chinese Journal of Soil Science, 2006, 37(2): 340-342 |
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| Authors: | XIE Feng HE Jin-lin TAN Hong DENG Qiu-jing SONG Chun-ran CHEN An-ning JI Yu-bi |
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| Abstract: | A technique was established to measure Cd,As and Hg in soil.After ectraction with nitric acid in boiling water,Cd was analysed by graphite furnace atomic absorption spectrometry,while As and Hg by atomic fluorescence spectometry.The detection limit is 0.053ng ml~(-1) for Cd,0.011 ng ml~(-1) for As and 0.008 ng ml~(-1) for Hg.The calibration lines are linear in the range of 0-4 ng ml~(-1) for Cd,0-40 ng ml~(-1) for As and 0~2 ng ml~(-1) for Hg,and the recoveries of these elements range from 93.0% to 104.0%.The method is simple,rapid and low on the detection limit. |
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| Keywords: | Digestion Graphite furnace atomic absorption spectrometry Atomic fluorescence spectrometry Heavy metals |
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