...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Talanta: The International Journal of Pure and Applied Analytical Chemistry >A comparative study between different alternatives to prepare gaseous standards for calibrating UV-Ion Mobility Spectrometers
【24h】

A comparative study between different alternatives to prepare gaseous standards for calibrating UV-Ion Mobility Spectrometers

机译：制备气态标准品以校准UV-离子迁移谱仪的不同方法之间的比较研究

获取原文
获取原文并翻译 | 示例
   

获取外文期刊封面封底 >>

       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

An UV-Ion Mobility Spectrometer is a simple, rapid, inexpensive instrument widely used in environmental analysis among other fields. The advantageous features of its underlying technology can be of great help towards developing reliable, economical methods for determining gaseous compounds from gaseous, liquid and solid samples. Developing an effective method using UV-Ion Mobility Spectrometry (UV-IMS) to determine volatile analytes entails using appropriate gaseous standards for calibrating the spectrometer. In this work, two home-made sample introduction systems (SISs) and a commercial gas generator were used to obtain such gaseous standards. The first home-made SIS used was a static headspace to measure compounds present in liquid samples and the other home-made system was an exponential dilution setup to measure compounds present in gaseous samples. Gaseous compounds generated by each method were determined on-line by UV-IMS. Target analytes chosen for this comparative study were ethanol, acetone, benzene, toluene, ethylbenzene and xylene isomers. The different alternatives were acceptable in terms of sensitivity, precision and selectivity.
机译：紫外线迁移谱仪是一种简单，快速，廉价的仪器，广泛用于环境分析等领域。其基础技术的有利特征可以极大地有助于开发可靠，经济的方法，用于从气态，液态和固态样品中测定气态化合物。开发使用紫外线离子迁移谱（UV-IMS）来确定挥发性分析物的有效方法需要使用适当的气态标准品来校准光谱仪。在这项工作中，使用了两个自制的样品引入系统（SIS）和一个商用气体发生器来获得这种气态标准。使用的第一个自制SIS是一个静态顶空，用于测量液体样品中存在的化合物，另一个自制系统是一个指数稀释装置，用于测量气态样品中存在的化合物。通过UV-IMS在线确定每种方法产生的气态化合物。选择用于该比较研究的目标分析物是乙醇，丙酮，苯，甲苯，乙苯和二甲苯异构体。就灵敏度，精密度和选择性而言，不同的选择是可以接受的。

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