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电感耦合等离子体激发原子发射光谱法(ICP-AES)如今已发展成为现代分析试验室的一种十分有效的重要分析手段。虽然研究过将试样引入电感耦合等离子体(ICP)的多种进样方法,但是目前大多数研究者和商品仪器都是借助于气体动力或超声波使液体试样雾化,以气-液气溶胶形式将试样溶液引入ICP。溶液进样方法,特别是气动雾化系统日趋成熟,已成为普遍采用的溶液进样装置。然而,日常分析工作中,还经常遇到难溶解或不易完全溶解的试样,如某些氧化物、耐腐蚀的合金试样、地质矿物试样等。分析者希望能直接将这类固体试样(不经转化为溶液)引进ICP中进行分析。另外,固体试样直接进样有利于减少沾污,降低空白,提高分析效率,而且避免了转变为溶液时带来的稀释因素等。
Inductively coupled plasma-atomic emission spectrometry (ICP-AES) has now become a very powerful and important analytical tool in modern analytical laboratories. Although a variety of injection methods for introducing a sample into an inductively coupled plasma (ICP) have been studied, most researchers and commercial instruments today atomize the liquid sample by means of gas-powered or ultrasonic waves, The sol sample is introduced into the ICP. The solution sampling method, especially the aerosol atomization system, has become increasingly popular and has become a commonly used solution sampling device. However, in routine analysis, often difficult to dissolve or difficult to completely dissolve the sample, such as some oxides, corrosion-resistant alloy samples, geological mineral samples. Analysts want to introduce such solid samples directly (without conversion to solution) into the ICP for analysis. In addition, the direct injection of solid samples help to reduce contamination, reduce the blank, improve the efficiency of the analysis, but also to avoid the dilution factor brought about when the solution is changed.