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钢铁中微量铝的测定多采用铬天青 S 分光光度法。由于操作繁琐,分析时间较长,且精密度较差。本文基于上述分析方法的原理,选择了 Al~(3+)-铬天青 S 二元显色体系,建立了钢铁中微量铝测定的流动注射分光光度分析方法。该方法灵敏度高,线性范围为
Determination of trace amounts of aluminum in steel using chrome azure S spectrophotometry. Due to cumbersome operation, the analysis time is longer, and the precision is poor. In this paper, based on the principle of the above analytical method, the dual color system of Al ~ (3 +) - chrome azurol S was selected to establish a flow injection spectrophotometric method for the determination of trace aluminum in steel. The method has high sensitivity and linearity range