| 微晶萘共沉淀富集－石墨炉原子吸收法测定痕量银金钯 |
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| 引用本文： | 肖宏展,梁树权. 微晶萘共沉淀富集－石墨炉原子吸收法测定痕量银金钯[J]. 岩矿测试, 1995, 0(1) |
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| 作者姓名： | 肖宏展 梁树权 |
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| 作者单位： | 中国科学院化学研究所 |
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| 摘 要： | 基于贵金属同２－巯基苯并噻唑（ＭＢＴ）定量反应时的温度差异，在常温下采用ＭＢＴ为Ａｇ、Ａｕ和Ｐｄ的沉淀剂并藉微晶素共沉淀法富集痕量Ａｇ、Ａｕ和Ｐｄ，使之与Ｐｔ、Ｒｈ及贱金属分离。固相富集物溶解于Ｎ，Ｎ－二甲基甲酰胺后，直接用原子吸收法测定。试验了定量共沉淀的最佳条件，方法用标样分析验证，结果吻合较好。
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| 关 键 词： | 微晶萘，共沉淀富集，银，金，钯，原子吸收光谱法 |
Enrichment of Trace Silver, Gold and Palladium with Microcrystalline Naphthalene and Their Subsequent Graphite Furnace AAS Determination |
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| XiaoHongzhan,LiangShuquan. Enrichment of Trace Silver, Gold and Palladium with Microcrystalline Naphthalene and Their Subsequent Graphite Furnace AAS Determination[J]. Rock and Mineral Analysis, 1995, 0(1) |
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| Authors: | XiaoHongzhan LiangShuquan |
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| Abstract: | dvantage has been taken of the difference of temperature for the completion of the reaction between noble metals and 2-mercaptobenzothiazole,traces of Ag,Au and Pd are enriched bymeans of microcrystalline naphthalene coprecipitation. The technique allows the separation ofPt,Rh and base metals.The enriched solid product,after separation from the aqueous phase,isdissolved in N,N-dimethylformamide and is directly used for the AAS determination.Conditionsfor effecting the quantitative coprecipitation have been optimized.The method has been testedon several reference samples with satisfactory results. |
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| Keywords: | microcrystalline naphthalene coprecipitation graphite furnace atomic absorption spectrometry(GFAAS) determination of Ag Au and Pd |
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