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矿石中钛的测定,目前大多采用过氧化氢和二安替吡啉甲烷(DAM)光电比色法,但灵敏度较低。近年来报导了以胶束增溶法提高测定钛的灵敏度的方法。本文研究钛-苯基荧光酮-溴代十六烷基三甲基胺(CTMAB)蓝色络合物的生成条件,並将其用于测定钛。方法灵敏度高,ε_(610)为1.1×10~5,选择性好。在DAM共存时,钛-苯基荧光酮-CTMAB蓝色络合物的吸收光谱特性不变,而络合物的稳定性增加,试剂空白降低。可不经分离,直接用于测定铝
Ore determination of titanium, most of the current use of hydrogen peroxide and two antipyrine methane (DAM) photoelectric colorimetric method, but the sensitivity is low. In recent years, reported by micellar solubilization method to improve the sensitivity of the determination of titanium. In this paper, the formation conditions of titanium (Ⅱ) -phenylfluorone-bromohexadecyltrimethyl amine (CTMAB) blue complex were studied and used to determine titanium. The method has high sensitivity and ε_ (610) is 1.1 × 10 ~ 5 with good selectivity. When DAM coexists, the absorption spectrum of Ti-phenylfluorone-CTMAB blue complex does not change, while the stability of complex increases and the reagent blank decreases. Can be used directly for the determination of aluminum without isolation