| 石墨炉原子吸收法测定矿石中痕量金 |
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| 引用本文： | 胡吉顺,刘玉祥.石墨炉原子吸收法测定矿石中痕量金[J].岩石矿物学杂志,1984,3(2):158-161. |
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| 作者姓名： | 胡吉顺 刘玉祥 |
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| 作者单位： | 辽宁地质矿产局实验室
(胡吉顺)，辽宁地质矿产局实验室(刘玉祥) |
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| 摘 要： | 本试验确立的聚三氟氯乙烯—磷酸三丁酯(1∶0.6)为固定相,反相萃取色层分离富集、石墨炉原子吸收法测定矿石中痕量金的分析方案,在选定的条件下,基本上无背景吸收和共存元素的影响。实测绝对灵敏度为8.9×10~(-12)克/1%吸收;检出限为1.1×10~(-4)克/吨、定量测定下限为2.2×10~(-4)克/吨;
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Atomic Absorption Determination of Trace Amounts of Gold in Rocks by Using a Flaaneless Atomizer |
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| Abstract: | A method of determining trace amounts of gold in rocks by using flame-
less atomizer is discribed. The recoveries of gold from the organic phase by
back-extraction and effect of background, interfering substance under the op-
timum condition were examined. The detection limit is 8.9 × 10-12g of Au. The
relative standard deviation for sample containing 0.38g/T is 6.6%(15 deter-
minations). |
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