Glow Discharge Atomization/Excitation/Ionization Sources

辉光放电雾化/激发/电离源

• 批准号: 9727667
• 负责人: Richard Marcus
• 金额: $ 34.69万
• 依托单位: Clemson University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-02-01 至 2001-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9727667&HistoricalAwards=false
• 关键词: Glow; Discharge; Atomization; Excitation; Ionization

9727667 Beyerlein This project entitled Glow Discharge Atomization/ExcitationAonization Sources involves a series of studies to further the development and implementation of radio frequency glow discharge (rf-GD) devices as spectrochemical sources for direct solids analysis to include nonconductive materials such as glasses, ceramics, and polymers, by atomic emission and mass spectrometries. Areas of investigation include the implementation of fundamental diagnostic techniques for real-time monitoring of rf-GD atomization/excitation/ionization conditions, where e.g., real- time in situ monitoring of sputtered crater depth will be accomplished with a laser confocal displacement apparatus mounted within the discharge source. Also, the addition of helium to the normal argon discharge will be studied as a means of providing enhanced depth resolution and sensitivity for hard- to-excite/ionize elements. %%% Radio frequency glow discharge sources hold promise in the analysis of materials such as polymers, ceramics and glasses, with the potential for performing rapid bulk and depth-resolved elemental analysis of films, coatings and membrane materials. The further development and optimization of these analytical tools will provide significant advantages over present analysis capabilities in fields of practical applications that include biotechnology, industrial process control, and waste characterization. ***

9727667 Beyerlein这个名为辉光放电原子化/激发电离源的项目涉及一系列研究，以进一步开发和实施射频辉光放电(RF-GD)设备作为光谱化学源，通过原子发射和质谱分析直接进行固体分析，包括玻璃、陶瓷和聚合物等非导电材料。研究领域包括实施用于实时监测RF-GD雾化/激发/电离条件的基本诊断技术，例如，将通过安装在放电源内的激光共焦位移装置来实现对溅射陨石坑深度的实时现场监测。此外，还将研究在正常的Ar放电中添加氦，作为一种提高难激发/电离元素的深度分辨率和灵敏度的方法。%射频辉光放电源在聚合物、陶瓷和玻璃等材料的分析中大有可为，有可能对薄膜、涂层和膜材料进行快速批量和深度分辨元素分析。这些分析工具的进一步开发和优化将在生物技术、工业过程控制和废物表征等实际应用领域提供比现有分析能力更大的优势。***