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测定了水杨醛水杨酰腙的离解常数。研究了试剂与镓荧光反应体系的最佳条件，观察到在pH3．2-氯乙酸缓冲液和乙醇：水=2：3介质中，络合物组成比为1:3（镓：试剂），λex/λem=370／455nm。建立镓分析方法的线性范围为0～140μg／L，相对标准偏差2．4％，检测限为1．4μg／L。考察了36种共存组分的干扰情况，方法用于适当分离的半导体材料硅和地质样品中痕量镓的测定，结果满意。
The dissociation constants of salicylal salicyloyl hydrazone were determined. The optimum conditions of reagent and gallium fluorescence reaction system were studied. The complex composition ratio was 1: 3 (gallium: reagent) in pH3.2-chloroacetic acid buffer solution and ethanol: water = 2: λex / λem = 370 / 455nm. The linear range for the determination of gallium was 0-140 μg / L, with a relative standard deviation of 2.4% and a detection limit of 1.4 μg / L. The interferences of 36 coexisting components were investigated. The method was applied to the determination of trace amounts of gallium in silicon and geological samples, and the results were satisfactory.