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投稿时间:2018-08-04 修订日期:2018-08-14
投稿时间:2018-08-04 修订日期:2018-08-14
中文摘要: 文章研究报道了电感耦合等离子体发射光谱法测定南红玛瑙中As、Cd、Cr、Pb、Sb元素含量的分析方法。通过对前处理方法的确定、分析线的选择、基体干扰方面的研究,确定了分析条件,并对比研究了标准曲线法与标准加入法在测定方面的异同。标准加入法与标准曲线法的测定结果相近,但标准曲线法的测定结果总是比标准加入法的测定结果小。在标准加入法中,各元素加标回收率在93.6%~103%之间,测定值的相对标准偏差(RSDn=6)小于10%;在标准曲线法中,各元素加标回收率在90.2%~103%之间,各元素的相对标准偏差(RSD n=6)也均小于10%。基体效应对标准曲线法测定存在一定的影响,但不十分明显。标准加入法可以很好地减轻基体效应的干扰,但不可大批量测定样品。因此,在分析控制质量要求允许范围内,可采用标准曲线法对南红玛瑙中剧毒元素As、Cd、Cr、Pb、Sb的含量进行测定。
中文关键词: 电感耦合等离子体发射光谱 南红玛瑙 剧毒元素
Abstract:Determination methods of Toxic Elements As, Cd, Cr, Pb, Sb in Southern Red Agate by ICP-AES were investigated. After the selection of analysis lines and the study of the matrix interference, the best analytical conditions were determined, and the similarities and differences between the standard curve method and the standard addition method were compared. The corresponding determination results and recovery rates of As, Cd, Cr, Pb, Sb elements between the two methods are close. For Mg element determination, the standard addition method has higher recovery rate than standard curve method. Recovery rates of As, Cd, Cr, Pb, Sb elements obtained by standard curve method ranged from 93.6% ~ 103%, and RSDs (n = 6) were less than 10%. Correspondingly, Recovery rates of As, Cd, Cr, Pb, Sb elements obtained by standard addition method ranged from 90.2% ~ 103%, and RSDs (n = 6) were less than 10%.
文章编号: 中图分类号: 文献标志码:
基金项目:
作者 | 单位 | |
邓传东 | 中国核动力研究设计院 | 74110622@qq.com |
孙琳* | 中国核动力研究设计院 | 845232870@qq.com |
安身平 | 中国核动力研究设计院 | 845232870@qq.com |
赵峰 | 中国核动力研究设计院 | 845232870@qq.com |
浦晨晨 | 中国核动力研究设计院 | 845232870@qq.com |
引用文本:
邓传东,孙琳,安身平,赵峰,浦晨晨.ICP-AES测定南红玛瑙中剧毒元素As、Cd、Cr、Pb、Sb含量的研究[J].中国无机分析化学,2018,8(6):9-13.
DENGchuandong,sunlin,AN shenping,ZHAO feng,PU chenchen.ICP-AES Determination of Toxic Elements As, Cd, Cr, Pb, Sb in Southern Red Agate[J].Chinese Journal of Inorganic Analytical Chemistry,2018,8(6):9-13.
邓传东,孙琳,安身平,赵峰,浦晨晨.ICP-AES测定南红玛瑙中剧毒元素As、Cd、Cr、Pb、Sb含量的研究[J].中国无机分析化学,2018,8(6):9-13.
DENGchuandong,sunlin,AN shenping,ZHAO feng,PU chenchen.ICP-AES Determination of Toxic Elements As, Cd, Cr, Pb, Sb in Southern Red Agate[J].Chinese Journal of Inorganic Analytical Chemistry,2018,8(6):9-13.