高等学校化学学报2011，Vol.32Issue(4)：857-862,6.
Hg(Ⅱ)与法莫替丁和阴离子表面活性剂三元混配物的共振瑞利散射、二级散射和倍频散射光谱及其分析应用
Resonance Rayleigh Scattering, Second-order Scattering and Frequency Doubling Scattering Spectra of Ternary Mixed Ligand Complex of Hg ( Ⅱ )-famotidine and Anionic Surfactant andTheir Analytical Applications
摘要
Abstract
In a NaAc-HAc buffer medium (pH = 5.9 ), famotidine (FMTD) reacted with Hg ( Ⅱ ) to form chelate cation [ Hg (FMTD) ] 2 +, which further reacted with anionic surfactants (AS) such as sodium dodecylsulfate ( SLS), sodium dodecylbenzene sulfonate (SDBS) and sodium dodecylsulphate (SDS) to form ternary mixed ligand complex [ Hg(FMTD) (AS) 2 ]· As a result, the resonance Rayleigh scattering(RRS), secondorder scattering(SOS) and frequency doubling scattering(FDS) were enhanced greatly. Their maximum wavelengths were located at 345-352 nm, 544 nm and 352 nm, respectively. The three scattering intensity(Δl)were proportional to the FMTD concentration in a certain range, and their detection limits were 3.3-3.9ng/mL( RRS method), 14.6-16.3 ng/mL( SOS method) and 7.0-8.5 ng/mL( FDS method). On the basis of this result, the simple, rapid, accurate and sensitive light scattering method had been proposed to determine FMTD in injection, serum and urine sample. The effects of [ Hg(FMTD) (AS)2 ] on the absorption andRRS spectra were investigated, and the reasons of enhancement for RRS were also discussed.关键词
法莫替丁/汞(Ⅱ)/阴离子表面活性剂/共振瑞利散射/二级散射/倍频散射Key words
Famotidine/ Hg( I )/ Anionic surfactant/ Resonance Rayleigh scatte-ring/ Second-order scattering/ Frequency doubling scattering分类
化学化工引用本文复制引用
陈佩丽,刘绍璞,刘忠芳,胡小莉..Hg(Ⅱ)与法莫替丁和阴离子表面活性剂三元混配物的共振瑞利散射、二级散射和倍频散射光谱及其分析应用[J].高等学校化学学报,2011,32(4):857-862,6.基金项目
国家自然科学基金(批准号:20875078)和发光与实时分析重庆市重点实验室基金(批准号:2006CA8006)资助. （批准号:20875078）
