项目名称： 非水相介质中化学蒸气发生新方法在原子荧光及原子吸收光谱分析中的应用研究

项目编号： No.21465001

项目类型： 地区科学基金项目

立项/批准年度： 2015

项目学科： 数理科学和化学

项目作者： 温晓东

作者单位： 大理大学

项目金额： 50万元

中文摘要： 相对于气动雾化样品引入方法，化学蒸气发生（CVG）具有基体有效分离、样品传输效率高、选择性好、装置简单、易于原子化等优点而被广泛应用于原子光谱及其联用技术。传统CVG方法除格林尼亚烷基化反应外多在水相中进行，因而常常受到严重的样品基体和过渡金属干扰。基于以上不足，本项目拟以离子液体等有机溶剂为介质开展非水相介质中化学蒸气发生新方法研究（以下简称非水相化学蒸气发生），并将其与原子光谱相关技术联用，并应用于实际有机样品的分析检测。同时深入研究和探索非水相CVG机理以提高蒸气发生效率、降低样品基体干扰、拓展CVG的研究领域及其应用范围。

中文关键词： 非水相化学蒸气发生；新方法；原子荧光光谱；原子吸收光谱；应用研究

英文摘要： Compared with pneumatic nebulization sample introduction method, chemical vapor generation (CVG) has the advantages of effective matrix isolation, high transfer efficiency of sample, good selectivity, simplicity of device and easy atomization, which makes the sampling technique has been widely applied in the field of atomic spectrometry and its hyphenated techniques. Besides some research about Grignard alkylation reaction, almost all works about traditional CVG are carried out in the aqueous phase, which are often affected by the serious interference of sample matrix and transition metals. Based on the above issues, in this project ionic liquid and other organic solvents are used as media to carry out the investigation of non-aqueous-phase media chemical vapor generation method (hereinafter to be referred as non-aqueous-phase chemical vapor generation). This new method will be developed and hyphenated with atomic spectrometry to be applied in the detection of real organic samples. The in-depth exploration of mechanism of non-aqueous-phase chemical vapor generation would be carried out in this project to improve efficiency of chemical vapor generation, reduce the sample matrix effect and expand the research and application fields of chemical vapor generation.

英文关键词： non-aqueous-phase chemical vapor generation;Novel method;Atomic fluorescence spectrometry;Atomic absorption spectrometry;Application research