摘要
合成了3种含季氮原子及羟基的同系列分析增敏试剂十六烷基(2-羟乙基)二甲基氯化铵(HEMAC)、十四烷基(2-羟乙基)二甲基氯化铵(TEMAC)和十二烷基(2-羟乙基)二甲基氯化铵(DEMAC),测试其基本物性,并用作测定微量钪、铁(Ⅲ)、锗的增敏试剂,获得了与阳离子表面活性剂及醇类有机溶剂联用时相仿的增敏效果。
Three micellar modifying analytical reagents containing a quaternarynitrqgen atom and a hydroxyl group, i.e. hexadecyl (2-hydroxyethyl)-dimethylammonium chloride (HEMAC), tetradecyl (2-hydroxyethyl) dimethyl-ammanium chloride (TEMAC) and dodecyl (2-hydroxyethyl)dimethylammoniumchloride (DEMAC) were synthesized. The physico-chemical properties andanalytical characteristics of these reagents are evaluated. The synthesizedsurfactants can be used as sensitizing and solubilizing reagents for spectrophoto-metric analysis. Some examples of the micellar improved spectropl otometricsystems by using these reagents such as Sc(Ⅲ)-CAS, Fe(Ⅲ)-CAS and Ge(Ⅳ)-PF are given. The sensitizing effects of the proposed reagents are similar tothose of cationic surfactants mixed with alcoholic organic solvents.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1989年第4期364-368,共5页
Chemical Journal of Chinese Universities
基金
国家自然科学基金
关键词
胶束增敏剂
HEMAC
TEMAC
DEMAC
Alkyl(2-hydroxyethyl)dimethylammonium chloride, Micellar sensiti-zer, Speotrpphotometry
