铝的显色反应报道很多。近年来三羟基荧光酮类试剂也加入了铝显色剂的行列。在阳离子表面活性剂存在下,该类试剂与铝的显色反应具有很高的灵敏度和较好的选择性。铝与邻氯苯基焚光酮的显色体系尚未见报道,本文发现,在pH5.8和溴化十六烷基三甲基铵存在下,此显色体系也具有高的灵敏度和较好的选择性。最大吸收波长λ_(max)=568nm,表观摩尔吸光系数ε_(568)=1.05×10~5。加入适当掩蔽剂可提高选择性。一主要试剂与仪器铝标准溶液:称取纯铝0.1000g溶于氢氧化钠溶 Aluminum color reaction reported a lot. In recent years, trihydroxyfluorone reagents have also joined the ranks of aluminum developers. In the presence of cationic surfactants, the reagents of this class react well with aluminum with high sensitivity and good selectivity. The chromogenic system of aluminum and o-chlorophenylcyanone has not been reported yet. It has been found that this chromogenic system also has high sensitivity and is good at pH 5.8 and cetyltrimethylammonium bromide The selectivity. The maximum absorption wavelength λ max (max) = 568 nm, the apparent molar absorptivity ε 568 = 1.05 × 10 5. Add appropriate masking agent to improve selectivity. A major reagent and instrument aluminum standard solution: Weigh pure aluminum 0.1000g dissolved in sodium hydroxide solution