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本文将分光光度法无机分析中多组分同时分析的问题归结成线性规划问题。用单纯形法求解。编成FORTRAN和BASIC程序,在长城0520或IBM微机上应用均获得成功。实验体系为常见八种金属离子Cd~(2+)、Co~(2+)、Ni~(2+)、cu~(2+)、Pb~(2+)、Zn~(2+)、Mn~(2+)、Fe~(3+)与5-Br-PADAP-OP的络合物。当pH为9,取10个波长数可任选2-5种组分组合同时测定,其相对偏差为1.0-8.0％。随组份数增加偏差增大。方法用于标准水样,铝合金标样和铬铝钴钢标样中多组分分析,其平均误差小于11.0％,可满足例行分析要求。
In this paper, the problem of simultaneous analysis of multiple components in inorganic analysis by spectrophotometry is summarized as a linear programming problem. Use simplex method to solve. Compiled FORTRAN and BASIC program, the Great Wall 0520 or IBM microcomputer applications are successful. The experimental system is one of the common metal ions such as Cd 2+, Co 2+, Ni 2+, Cu 2+, Pb 2+, Zn 2+, Mn ~ (2 +), Fe ~ (3+) and 5-Br-PADAP-OP. When the pH is 9, taking 10 wavelengths can be optional 2-5 combinations of components measured simultaneously, the relative deviation of 1.0-8.0%. As the number of components increases the deviation increases. The method was applied to the multi-component analysis of standard water sample, aluminum alloy standard and chrome-aluminum-cobalt steel standard sample. The average error was less than 11.0%, which could meet the requirements of routine analysis.