...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Fuel >Determination of selenium by ICP-MS and HG-ICP-MS in coal, fly ashes and sorbents used for flue gas cleaning
【24h】

Determination of selenium by ICP-MS and HG-ICP-MS in coal, fly ashes and sorbents used for flue gas cleaning

机译：ICP-MS和HG-ICP-MS测定烟道气清洁用煤，粉煤灰和吸附剂中的硒

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The determination of selenium in solid materials related with the use of coal for energy production was evaluated by two methods; ICP-MS and HG-ICP-MS. Coals, fly ashes and various solids used as sorbents in gas cleaning processes (kaolin, limestone, alumina, metal oxide mixtures and activated carbons), were the materials analysed. In several of these materials, selenium could be determined by either method with similar results. However in coal, fly ashes and some activated carbons, the use of a HG-ICP-MS is necessary in order to avoid interferences. The results obtained by both methods in samples whose selenium content ranges from mug g~(-1) to mg g~(-1), are discussed. In general, good (+- 2-4 percent) to excellent (+- 1-2 percent) agreement between the reference and the obtained concentrations was achieved in the analysis of the certified and reference samples, the relative standard deviation being lower than 10 percent in all cases.
机译：与煤炭生产相关的固体材料中硒的测定方法有两种： ICP-MS和HG-ICP-MS分析了在气体清洁过程中用作吸附剂的煤，粉煤灰和各种固体（高岭土，石灰石，氧化铝，金属氧化物混合物和活性炭）。在其中的几种材料中，硒可以通过两种方法测定，结果相似。但是，在煤，粉煤灰和某些活性炭中，必须使用HG-ICP-MS以避免干扰。讨论了两种方法在硒含量范围从g g（-1）到mg g（-1）的样品中获得的结果。通常，在认证和参考样品的分析中，参照物和所获得的浓度之间达到了良好的（±2-4％）至优异的（±1-2％）一致性，相对标准偏差小于10所有情况下的百分比。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号