四磺基铝酞菁-阳离子表面活性剂体系应用于白酒中乙醇含量的测定  

Tetrasubstituted Sulphonated Aluminum Phthalocyanine-Cationic Surfactant System for Fluorimetric Determination of Ethanol in Alcoholic Beverage

作　　者：詹心琪[1] 李东辉[2] 朱庆枝[2] 郑洪[2] 许金钩[2] 

机构地区：[1]漳州师范学院化学系,漳州363000 [2]厦门大学化学系,分析科学教育部重点实验室,厦门361005

出　　处：《分析化学》2001年第6期710-712,共3页Chinese Journal of Analytical Chemistry

基　　金：国家自然科学基金资助课题(No.29775021)

摘　　要：基于四磺基铝酞菁（ＡｌＳ４　Ｐｃ）在阳离子表面活性剂存在下发生诱导缔合而导致体系荧光猝灭，而在乙醇存在下ＡｌＳ４　Ｐｃ解聚而使体系荧光恢复的原理，建立了测定白酒中乙醇含量的新方法。方法的线性区间为０．５％～９０％（Ｖ／Ｖ）乙醇，检测限为０．４８％（Ｖ／Ｖ）。本法已应用于实际酒样中乙醇的直接测定，结果满意。A new fluorimetric method was developed for the determination of ethanol in alcoholic beverage. The method is based on the principle that tetrasubstituted sulphonated aluminum phthalocyanine (AIS,Pc), a red-region fluorescent reagent, is induced to associate in the presence of cationic surfactant, cetyltrimethylammonium bromide (CTMAB), thus its fluorescence is quenched, and then the aggregate is disaggregated by the addition of ethanol and the fluorescence is recovered. This method has a linear determination range of 0.5% similar to 90.0% ( V/V), the detection limit is 0.48% ( V/V). The method has been used to determine real alcoholic beverage samples with satisfactory results.

关 键 词：四磺基铝酞菁 乙醇 白酒 测定 阳离子表面活性剂 荧光法 

分 类 号：O657.3[理学—分析化学]