Investigation of Fundamental Processes in Analytical Plasmasfor Atomic Spectrometry

原子光谱分析等离子体基本过程的研究

• 批准号: 9217170
• 负责人: John Olesik
• 金额: --
• 依托单位: Ohio State University Research Foundation -DO NOT USE
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-03-15 至 1996-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9217170&HistoricalAwards=false
• 关键词: Investigation; Fundamental; Processes; Analytical; Plasmasfor

This project, in the Analytical and Surface Chemistry Program, will support a fundamental investigation of the processes that control the sensitivity, precision and accuracy of multielement analysis via inductively coupled plasma optical emission and mass spectrometry. Desolvation of sample aerosols, particle vaporization, analyte ionization and excitation of atoms and ions will all be studied; however, the particular focus of the investigation will be plasma-sample interactions. Measurements of sample aerosol characteristics, atom and ion concentrations in the plasma, excitation and ionization will be carried out in a systematic attempt to separately investigate the complex mechanisms of signal generation in a plasma. %%% This project involves a basic investigation of the factors controlling the generation of analytically useful signals from atoms and ions in a plasma. The goal is to improve multielement analytical capabilities for the analysis of geological, environmental, biological, material, and agricultural samples.

这个项目，在分析和表面化学程序， 将支持对过程的基本调查， 控制多元素的灵敏度、精密度和准确度 通过电感耦合等离子体光发射进行分析， 质谱分析法来 样品气溶胶、微粒的去溶剂化 蒸发、分析物电离和原子激发， 所有离子都将被研究;然而， 研究将是血浆-样品相互作用。测量 样品气溶胶特性、原子和离子浓度 在等离子体中，激发和电离将在 系统地尝试单独调查 等离子体中信号产生的机制。 %%% 这个项目涉及到对这些因素的基本调查 控制分析上有用的信号的产生， 等离子体中的原子和离子。 目标是提高 多元素分析能力，用于分析 地质、环境、生物、材料和 农业样品。