合金钢中铝的比色法,报导颇多,但在使用中大都感到不够满意。本文采用二乙基二硫代氨基甲酸二乙胺(简称DDDC)分离铁、镍、铜、钼等合金元素,继用8-羟基喹啉萃取-光度法测定铝,同时,又应用改变萃取溶液酸度和添加掩蔽剂等方法,以消除锰、铬、钛、铌等元素的干扰,从而简化了分析步骤,使溶样后的操作时间缩短在半小时内就可完成。 Aluminum alloy colorimetric method, reported a lot, but in most are not satisfied with the use of. In this paper, diethylamine dithiocarbamate (DDDC) was used to separate alloying elements such as iron, nickel, copper and molybdenum, followed by 8-hydroxyquinoline extraction - spectrophotometric determination of aluminum, while the application of change extraction solution Acidity and adding masking agents to eliminate the interference of manganese, chromium, titanium, niobium and other elements, thus simplifying the analysis step and shortening the operation time after the sample is dissolved in less than half an hour.