十六烷基三甲基溴化铵与亮绿SF作用的共振光散射研究  

Study on the Interaction of CTAB with Light Green SF by Resonance Light Scattering Method

作　　者：符小芳 陈影 谢立[1] 连鹏[1] 赵小辉[1] 

机构地区：[1]长江师范学院化学化工学院三峡库区环境监测与灾害防治工程研究中心,重庆408100 [2]重庆市涪陵城区第十一小学校,重庆408000

出　　处：《广州化工》2015年第2期70-71,78,共3页GuangZhou Chemical Industry

基　　金：长江师范学院大学生创新创业训练计划项目(2013dcxm48)

摘　　要：研究了十六烷基三甲基溴化铵（CTAB）和亮绿SF作用的共振散射光谱特征。结果表明：在p H=4.10缓冲介质中,十六烷基三甲基溴化铵与亮绿SF相互作用形成离子缔合物,产生以505 nm为特征峰的共振光散射（RLS）增强信号,其RLS增强程度与亮绿SF浓度成线性关系,检出限和线性范围分别为97.6 nmol/L和0.98~75μmol/L,据此建立了痕量亮绿SF的共振光散射分析方法。将方法用于水样中亮绿SF含量的快速检测,结果令人满意。Cetrimonium Bromide（ CTAB） and light green SF union resonance scattering spectrum characteristic were studied. The experimental result indicated that in p H = 4. 10 buffer solution,CTAB and light green SF interacted to form ion- association complex,which resulted in greatly enhanced resonance light scattering（ RLS） signals at 505 nm. It was found that the enhanced RLS intensities（ ΔIRLS） at 505 nm were proportional to the concentration of light green SF.The determination limit and the linear range of light green SF were 97. 6 nmo L / L and 0. 98 ~ 75 μmol / L. Thus a new method for trace light green SF could be established accordingly. The method was applied to determine light green SF in actual water samples with satisfactory results.

关 键 词：共振光散射 亮绿SF 十六烷基三甲基溴化 

分 类 号：O69[理学—化学]