于立华.电感耦合等离子体质谱(ICP-MS)法测定地球化学样品中金时样品前处理条件的优化[J].中国无机分析化学,2019,9(2):46-49.
电感耦合等离子体质谱(ICP-MS)法测定地球化学样品中金时样品前处理条件的优化
Optimization of Pretreatment Conditions and Operational Notices for Preconcentration of Gold Samples by Foam Plastic and Inductively Coupled Plasma Mass Spectrometry
投稿时间:2018-11-30  修订日期:2019-04-16
DOI:doi:10.3969/j.issn.2095-1035.2019.02.010
中文关键词:  地球化学样品    泡塑富集  质谱  前处理条件优化及操作注意事项
英文关键词:geochemical samples  gold  foam enrichment  mass spectrometry  optimization of pretreatment conditions and operational considerations
基金项目:
  
作者单位
于立华 甘肃省地矿局第四地质矿产勘查院
摘要点击次数: 60
全文下载次数: 3
中文摘要:
      此文依据地球化学样品分析方法第4部分:金量的测定 泡塑富集-电感耦合等离子体质谱法[1]。在大量实践的基础上总结了样品前处理过程中样品的焙烧,溶样,振荡吸附,解脱时间的合理控制,以及样品分析前处理过程中的一些操作注意事项。最终确定样品焙烧时间1h(原方法[1]为1~2h),溶样时间40min(原方法[1]为1h),震荡吸附时间30min(与原方法[1]同,)硫脲水浴解脱时间30min(与原方法[1]同).经过对大批量实验样品及国家一级金标准物质测试验证后得出验证得出金的回收率在90%以上:适当优化条件可以满足绝大多数。在满足样品的分析准确度,精密度等金分析质控分析要求,并且可以提高分析效率。的基础上节省了分析时间,减少了能耗。尤其对于大批量分析任务,如区域化学地质普查。可以在相同的实验设备、人员配备的基础上,提高分析效率,降低能耗。
英文摘要:
      This article is based on geochemical sample analysis method Part 4: Determination of gold content Foam plastic enrichment-Inductively coupled plasma mass spectrometry[ 1] And ... On the basis of a large number of practices, this paper summarizes the roasting, dissolution, oscillating adsorption, reasonable control of release time, as well as some operational precautions in the process of sample analysis. Final determination of sample roasting time 1h(original method[ 1] 1 to 2 H), dissolution time 40 min(original method[ 1] 1 H), shock adsorption time 30 min(with the original method[ 1] Same,) Thiourea water bath release time 30 min(with the original method[ 1] Same). After testing and verifying the large number of experimental samples and the National gold standard materials, it is concluded that the appropriate optimization conditions can meet the analysis accuracy, precision and other quality control analysis requirements of most samples, and can improve the analysis efficiency. Especially for mass analysis tasks such as regional chemical Geological surveys. It can improve the analysis efficiency and reduce energy consumption on the basis of the same experimental equipment and staffing.This paper is based on the analysis method of geochemical samples Part 4: determination of gold content by foam enrichment-inductively coupled plasma mass spectrometry [1]. On the basis of a large number of practices, the reasonable control of sample roasting, sample dissolution, oscillating adsorption, release time and some operational precautions in sample analysis pretreatment are summarized. Finally, the sample roasting time is 1 h (original method [1] is 1-2 h), the sample dissolving time is 40 min (original method [1] is 1 h), the shock adsorption time is 30 min (same as original method [1]), and the thiourea water bath dissolution time is 30 min (same as original method [1]). The gold recovery rate is over 90% after verification of a large number of experimental samples and national first-class gold standard substances. On the basis of meeting the quality control of sample analysis accuracy and precision, the analysis time is saved and energy consumption is reduced. Especially for large-scale analysis tasks, such as regional chemical geological survey. On the basis of the same experimental equipment and staffing, the analysis efficiency can be improved and the energy consumption can be reduced.
查看全文  查看/发表评论  下载PDF阅读器
关闭