| 粗锌中镉的测定方法研究 |
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| 引用本文： | 范丽新,蒯丽君,汤淑芳.粗锌中镉的测定方法研究[J].中国无机分析化学,2019,9(3):40-44. |
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| 作者姓名： | 范丽新 蒯丽君 汤淑芳 |
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| 作者单位： | 北矿检测技术有限公司;金属矿产资源评价与分析检测北京市重点实验室 |
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| 基金项目： | 国家重点研发计划：国家重大科学仪器设备开发重点专项“工业过程在线分析检测仪器开发与应用”（2016YFF0102500） |
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| 摘 要： | 样品用硝酸-盐酸分解,采用扣除背景的方式消除高含量的锌对低含量镉测定的影响。优化了镉测定的仪器条件,建立了粗锌中镉含量的测定方法。用于测定粗锌中镉,结果的相对标准偏差(RSD,n=11)为0.95%～6.3%。按照实验方法对粗锌样品进行加标回收实验,加标回收率为98.0%～102%。与ICP-AES法测定结果基本一致,能满足日常对粗锌中镉含量的测定要求。
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| 关 键 词： | 粗锌 镉 |
| 收稿时间： | 2019/1/6 0:00:00 |
| 修稿时间： | 2019/1/20 0:00:00 |
Determination of cadmium content in crude zinc |
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| FAN Lixin,KUAI Lijun and TANG Shufang.Determination of cadmium content in crude zinc[J].Chinese Journal of Inorganic Analytical Chemistry,2019,9(3):40-44. |
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| Authors: | FAN Lixin KUAI Lijun and TANG Shufang |
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| Institution: | MTC Testing Technical CO.,LTD.,MTC Testing Technical CO.,LTD.,MTC Testing Technical CO.,LTD. |
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| Abstract: | The determination method of cadmium in crude zinc was established. The sample was decomposed with nitric acid-hydrochloric acid, and the effect of high content of zinc on the determination of low cadmium was eliminated by background deduction. The determination results were recorded after optimizing the instrument conditions. Under the selected experimental conditions, the relative standard deviations(RSD,n=11) of determination results were between 0.95% and 6.32%. The recoveries were between 98.0% and 101.7%. It is basically consistent with the measurement results of ICP-AES, which can meet the daily requirements for the detection of cadmium in crude zinc. |
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| Keywords: | crude zinc cadmium |
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