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ICP原子发射光谱法表明,它遭到来自复杂样品基体的各类型的光谱干扰。当应用直读多色仪时,若选择的分析波长受样品基体干扰时,进行分析将是很困难或根本不可能的。Kowalski所推荐的广义标准加入法(GSAM)在多组份分析中对克服基体影响是有效的,然而仍需进行详尽的研究与改进,才能便于实用于各类样品。在本文中,应用GSAM时,对消除杂散光,谱线重叠、严重的高强度的线变宽的重叠和离子—电子复合连续发射和元素间的相互干扰等问题已被研究并进行了改进。
ICP atomic emission spectroscopy shows that it suffers from various types of spectral interference from complex sample matrices. When using a direct reading polychromator, it can be difficult or impossible to perform an analysis if the selected analysis wavelength is disturbed by the sample matrix. Kowalski’s proposed Generalized Addition Method (GSAM) is effective in overcoming matrix effects in multicomponent analysis, but thorough research and refinement are still needed to make it practical for all types of samples. In this paper, the application of GSAM has been studied and improved for the elimination of stray light, overlapping of lines, serious high-intensity line broadening overlap and ion-electron recombination emission and inter-element interference.