Glow Discharge Atomization/Excitation/Ionization Sources

这个名为辉光放电雾化/激发电离源的项目涉及一系列研究，以进一步发展和实施射频辉光放电（rf-GD）设备作为直接固体分析的光谱化学源，包括通过原子发射和质谱分析非导电材料，如玻璃、陶瓷和聚合物。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聚焦位移装置来完成对溅射坑深度的实时原位监测。此外，在常规氩气放电中加入氦气将作为一种提高深度分辨率和难以激发/电离元素灵敏度的方法进行研究。射频辉光放电源在聚合物，陶瓷和玻璃等材料的分析中具有前景，具有对薄膜，涂层和膜材料进行快速批量和深度解析元素分析的潜力。这些分析工具的进一步发展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。＊＊＊

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. ***