偶氮氯膦Ⅰ分光光度法测定矿石中高中含量稀土总量 |
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引用本文: | 袁锡英.偶氮氯膦Ⅰ分光光度法测定矿石中高中含量稀土总量[J].岩石矿物学杂志,1984,3(1):75-77. |
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作者姓名: | 袁锡英 |
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作者单位: | 广东省地质矿产局第九实验室 |
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摘 要: | 偶氮氯膦Ⅰ被推荐为镁试剂,对稀土元素显色反应灵敏度低,一直被人们忽视。为测定矿石中高中含量稀土。研究了偶氮氯膦1与稀土元素之间反应的各种条件。试验确定偶氮氯膦1与稀土元素络合反应的适宜pH范围为9.5—13。络合物最大吸收在
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Spectrophotometric Determination of Total Rare Earth in Minerals and Rocks with Chlorophosphonazo I |
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Abstract: | Rare earth element form complex with chlorophosphonazo I at pH 9.5-13 in
ammoniacal buffer solution. The maximum absorption of the complex is 620nm,
The calibration curve for REE was linear within a range of 0-600 ug/25m1.
The interferences of foreign ions were separated by extration} with PMBP. |
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