| 石墨炉原子吸收光谱法测定地质样品中微量银 |
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| 引用本文： | 黄俭惠,卢汉堤.石墨炉原子吸收光谱法测定地质样品中微量银[J].矿产与地质,2014(3):381-384. |
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| 作者姓名： | 黄俭惠 卢汉堤 |
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| 作者单位： | 中国有色桂林矿产地质研究院有限公司,广西桂林541004 |
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| 摘 要： | 对石墨炉原子吸收光谱法测定地质样品中微量银进行了研究。样品经四酸溶解,在3mol/L的HCl介质中以EDTA-抗坏血酸溶液作为基体干扰改进剂,用石墨炉原子吸收光谱法测定地质样品中微量银。方法检出限为0.051ng/mL,精密度(RSD,N=11)5.91%~12.83%。能满足地质样品中w(Ag)/10-6=0.03~5范围内银测定的准确度和精密度的要求。
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| 关 键 词： | 石墨炉原子吸收 光谱法 基体改进剂 银 |
Measurement of trace silver in geological samples by graphite furnace atomic absorption spectroscopy |
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| HUANG Jian-hui,LU Han-di.Measurement of trace silver in geological samples by graphite furnace atomic absorption spectroscopy[J].Mineral Resources and Geology,2014(3):381-384. |
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| Authors: | HUANG Jian-hui LU Han-di |
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| Institution: | (China Nonferrous Metal (Guilin) Geology and Mining Co. Ltd. , Guilin, Guangxi 541004) |
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| Abstract: | This article conducted research on measurement of trace silver in geological samples by graphite fur-nace atomic absorption spectrometry.After dissolved in tetracid,Trace silver in geological samples was measured by graphite furnace atomic absorption spectrometry in medium of HCl （3mol/L）while EDTA-as-corbic acid solution was used as matrix interference modifier.The detection limit was 0.05 1ng/mL,and the precision （RSD,N=1 1）was 5.91%~12.83%.The method meets the requirements on accuracy and preci-sion of silver measurement within the range of w（Ag）/10 -6 = 0.03 to 5. |
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| Keywords: | graphite furnace atomic absorption spectrometry matrix modifier silver |
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