分析化学中的掩蔽,由于它具有方法简单快速,不需要任何特殊仪器和设备,可以不经分离而直接进行测定等优点,早已被广泛应用于分析实践。特别是近年来,由于有机掩蔽剂的不断改进和合成,为它在分析中的应用开拓了广阔的前景。研究掩蔽剂在分析中应用的有关理论和实践,不仅对于提高分析的选择性,而且对于如何选定分析方法的最佳条件,估价 Analytical chemistry masks have long been widely used in analytical practice because of their simplicity, rapidness, and the absence of any special instrumentation and equipment that can be directly measured without separation. Especially in recent years, due to the continuous improvement and synthesis of organic masking agents, it has opened up broad prospects for its application in analysis. Studying the theory and practice of applying masking agents in the analysis not only improves the selectivity of the analysis, but also evaluates the best condition for how to choose the analytical method