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.
粗锌中镉的测定方法研究
Determination of cadmium content in crude zinc
投稿时间:2019-01-06  修订日期:2019-01-20
DOI:doi:10.3969/j.issn.2095-1035.2019.03.010
中文关键词:  粗锌  
英文关键词:crude zinc  cadmium
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)
        
作者单位
范丽新 北矿检测技术有限公司
蒯丽君 北矿检测技术有限公司
汤淑芳 北矿检测技术有限公司
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中文摘要:
      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。试验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%~6.32%。按照实验方法对粗锌样品进行加标回收试验,回收率为98.0%~101.7%。与ICP-AES仪测定结果基本一致,能满足日常对粗锌中镉含量的检测要求。
英文摘要:
      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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