| 重铬酸钾容量法测定铁矿石中全铁的方法改进 |
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| 引用本文： | 陈占生,杨理勤,谢 璐,李玄辉. 重铬酸钾容量法测定铁矿石中全铁的方法改进[J]. 中国无机分析化学, 2015, 5(3): 41-44 |
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| 作者姓名： | 陈占生 杨理勤 谢 璐 李玄辉 |
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| 作者单位： | 中国人民武装警察部队黄金地质研究所，河北 廊坊 065000;中国人民武装警察部队黄金地质研究所，河北 廊坊 065000;中国人民武装警察部队黄金地质研究所，河北 廊坊 065000;中国人民武装警察部队黄金地质研究所，河北 廊坊 065000 |
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| 摘 要： | 选用三氯化钛-重铬酸钾-中性红指示剂容量法,通过对方法的改进,对温度、溶样酸、酸介质、指示剂及共存离子消除的不同条件实验的对比研究,优化了无汞测定全铁的分析方法,实验表明,方法的相对标准偏差(RSD)为0.16%,对国家标准物质测定结果与推荐值基本一致,参加中实国金比对Z比分数小于2,测定结果满意。
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| 关 键 词： | 铁矿石；全铁；重铬酸钾法 |
| 收稿时间： | 2015-05-14 |
| 修稿时间： | 2015-05-14 |
An Improved Method for Potassium Dichromate Determination of Total Iron in Iron Ore |
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| CHEN Zhansheng,YANG Liqin,XIE Lu and LI Xuanhui. An Improved Method for Potassium Dichromate Determination of Total Iron in Iron Ore[J]. Chinese Journal of Inorganic Analytical Chemistry, 2015, 5(3): 41-44 |
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| Authors: | CHEN Zhansheng YANG Liqin XIE Lu LI Xuanhui |
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| Affiliation: | Gold Geolegical Institute of CAPF, Langfang, Hebei 065000,China;Gold Geolegical Institute of CAPF, Langfang, Hebei 065000,China;Gold Geolegical Institute of CAPF, Langfang, Hebei 065000,China;Gold Geolegical Institute of CAPF, Langfang, Hebei 065000,China |
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| Abstract: | This paper selects the titanium trichloride -potassium dichromate - neutral red indicator method, through the improvement of the method, a comparative study of different experimental conditions of temperature, acids, acid medium, the indicator and coexisting ions elimination, optimized analysis method for the determination of total iron without mercury, so this method is easy to operate, and avoid the harm brought by mercury determination, with satisfactory results. |
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| Keywords: | iron ore total iron potassium dichromate method |
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