| 硝酸-氢氟酸密封消解同时测定茶园土壤中Cd和Pb的方法研究 |
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| 引用本文： | 谢锋,谭红,杨鸿波,王大霞,李荣华.硝酸-氢氟酸密封消解同时测定茶园土壤中Cd和Pb的方法研究[J].贵州科学,2008,26(2):90-93. |
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| 作者姓名： | 谢锋 谭红 杨鸿波 王大霞 李荣华 |
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| 作者单位： | 贵州科学院贵州省理化测试分析研究中心,贵州,贵阳,550002 |
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| 摘 要： | 硝酸和氢氟酸密封消解茶场土壤样品，用石墨炉原子吸收测定镉和铅含量．其检出限镉为0．053ngmL^-1、铅为0．1ngmL^-1，线性范围镉为0～2ngmL^-1、铅为0～50ngmL^-1．回收率在93．0％～104．0％．本方法简便了消解过程，一次消解能同时测定样品中的多种重金属．
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| 关 键 词： | 茶场土壤 石墨炉原子吸收 铅 镉 |
DETERMINATION OF CADMIUM AND LEAD IN TEA PLANTATION SOIL BY TECHNIQUE OF SEALED DIGESTION WITH NITRIC-HYDROFLUORIC ACID |
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| XIE Feng,TAN Hong,YANG Hong-bo,WANG Da-xia,LI Rong-hua.DETERMINATION OF CADMIUM AND LEAD IN TEA PLANTATION SOIL BY TECHNIQUE OF SEALED DIGESTION WITH NITRIC-HYDROFLUORIC ACID[J].Guizhou Science,2008,26(2):90-93. |
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| Authors: | XIE Feng TAN Hong YANG Hong-bo WANG Da-xia LI Rong-hua |
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| Institution: | Guizhou Physical Test and Chemical Analysis Center;GAS;Guiyang 550002;Guizhou |
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| Abstract: | A sealed digestion technique was established to measure Cd and Pb in tea plantation soil. After extracted with nitric -hydrofluoric acid, they were analyzed by graphite furnace atomic absorption spectrometry. The detection limit is 0. 053 ng · mL^-1 for Cd and 0.1 ng · mL^-1 for Pb. The linear range for calibration is 0 - 2 ng · mL^-1 for Cd and 0 -50 ng · mL^-1 for Pb,with recovery rate of 93.0% - 104.0%. The method is simple and capable of measuring several heavy metals in one time. |
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| Keywords: | tea plantation soil graphite furnace atomic absorption spectrometry lead cadmium |
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