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中国无机分析化学:2020,10(2):7-10
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电感耦合等离子体发射光谱法测定铁矿石中磷
王小强, 梁 倩, 余文丽, 赵亚男, 任金鑫
(1.河南省有色金属地质勘查总院;2.河南省有色金属地质矿产局联合实验室)
Determination of P in Iron ores by Inductively Coupled Plasma-Atomic Emission Spectrometry
WANG Xiaoqiang, LIANG Qian, YU Wenli, ZHAO Yanan, REN Jinxin
(1.General Institute for Non-ferrous Metals and Geological Exploration of Henan Province;2.Joint Laboratory of Henan Province Non-ferrous Metals Geological and Mineral Resources Bureau)
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本文已被:浏览 1276次   下载 100
投稿时间:2019-09-19    修订日期:2019-10-08
中文摘要: 采用盐酸-硝酸-高氯酸-氢氟酸前处理样品,电感耦合等离子体发射光谱法测定铁矿石中的磷。对磷元素的分析谱线、样品称样量等工作条件进行了优化,采用内标法,有效克服了基体效应及仪器波动产生的影响,提高了分析结果的精密度和准确度,克服了常规化学分析方法步骤繁琐、耗时长、工作量大的不足。利用所建立的方法快速分析了铁矿石中磷的含量,方法检出限为0.0036 mg/L,测定范围为0.012%~2%,测定结果与标准值和化学法相符,精密度(RSD, n = 9) 小于2%。方法具有快速、简便、线性范围宽等优点,分析误差满足常规化学分析法的要求,能满足铁矿石中磷元素的快速、准确测定。
Abstract:Iron ore samples were digested with HCl-HNO3-HClO4-HF mixed acid and P in sample solutions were then directly determined by inductively coupled plasma-atomic emission spectrometry. The conditions for selection of analytical lines and the amount of sample were optimized, the matrix interference effect and the instrument fluctuation have been overcome and the precision and accuracy of the analysis were improved, using internal standard method. The method overcomes the cumbersome procedure, time consuming, heavy workload of the conventional chemical analysis methods. The established method has been applied to the rapid determination of P in iron ore samples, the determination limits of the method was 0.0036 mg/L for P and the determination content range was of 0.012%~2%, the results are in agreement with the certified values and chemical method, the precision of the method was less than 2% (RSD, n = 9). The method provides the advantages of wide dynamic linear range, high efficiency and simple operation, the analytical error meet the requirements of conventional chemical analysis, the method has been applied to the determination of P in various iron ore samples and the results are accurate and reliable.
文章编号:     中图分类号:O 657.31    文献标志码:
基金项目:河南省“两权价款”地质科研项目
引用文本:
王小强,梁 倩,余文丽,赵亚男,任金鑫.电感耦合等离子体发射光谱法测定铁矿石中磷[J].中国无机分析化学,2020,10(2):7-10.
WANG Xiaoqiang,LIANG Qian,YU Wenli,ZHAO Yanan,REN Jinxin.Determination of P in Iron ores by Inductively Coupled Plasma-Atomic Emission Spectrometry[J].Chinese Journal of Inorganic Analytical Chemistry,2020,10(2):7-10.

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