• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Advanced Environmental, Chemical, and Biological Sensing Technologies II >Isotopic hydrogen analysis via conventional and surface-enhanced fiber optic Raman spectroscopy
【24h】

Isotopic hydrogen analysis via conventional and surface-enhanced fiber optic Raman spectroscopy

机译：通过常规和表面增强光纤拉曼光谱进行同位素氢分析

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

This report describes laboratory development and process plant applications of Raman spectroscopy for detection of hydrogen isotopes in the Tritium Facilities at the Savannah River Site (SRS), a U.S. Department of Energy complex. Raman spectroscopy provides a lower-cost, in situ alternative to mass spectrometry techniques currently employed at SRS. Using conventional Raman and fiber optics, we have measured, in the production facility glove boxes, process mixtures of protium and deuterium at various compositions and total pressures ranging from 1000 - 4000 torr, with detection limits ranging from 1-2% for as low as 3-second integration times. We are currently investigating fabrication techniques for SERS surfaces in order to measure trace (0.01-0.1%) amounts of one isotope in the presence of the other. These efforts have concentrated on surfaces containing palladium, which promotes hydrogen dissociation and forms metal hydride bonds, essentially providing a chemical enhancement mechanism.
机译：本报告介绍了拉曼光谱仪在实验室开发和加工厂中的应用，用于检测美国能源部萨凡纳河站点（SRS）the设施中的氢同位素。拉曼光谱法提供了一种低成本的原位替代方法，可以替代目前在SRS上使用的质谱技术。使用传统的拉曼和光纤，我们已经在生产设备的手套箱中测量了各种组成和总压力范围为1000-4000 torr的pro和氘的工艺混合物，检测限范围为1-2％，低至3秒的积分时间。我们目前正在研究SERS表面的制造技术，以便在一种同位素存在的情况下测量痕量（0.01-0.1％）的一种同位素。这些努力集中在含有钯的表面上，该钯促进氢解离并形成金属氢化物键，本质上提供了化学增强机理。

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