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前文报道了将CPA矩阵法用于有色配合物体系的运算,并较好地解决了微量铌和钽的光度同时测定问题。本文着重从配合物吸收光谱行为及矩阵运算角度分别探讨了CPA矩阵法和AKC矩阵法中波长选择对分析结果误差的影响。在前人有关钨、钼、钛单个元素光度测定研究的基础上,确立了适宜于钨、钼、钛-苯基荧光酮-溴代十六烷基三甲铵三元配合物同时光度测定的最佳条件,拟定了不经分离直接光度测定钨、钼、钦的方法。
The previous report reported the use of CPA matrix method for the calculation of colored complex systems and solved the problem of simultaneous determination of trace niobium and tantalum luminosity. In this paper, the influence of the wavelength selection of the CPA matrix method and the AKC matrix method on the analysis result errors is discussed respectively from the absorption spectrum behavior and matrix operation of the complex. Based on the previous studies on the photometric determination of single element of tungsten, molybdenum and titanium, the simultaneous determination of the three components of tungsten, molybdenum, titanium-phenylfluorone-bromocetyltrimethylammonium bromide Good conditions, developed without separation of direct photometric determination of tungsten, molybdenum, Chin’s method.