溴甲酚绿-Triton X-100与扑草净作用的共振光散射光谱研究  

Study on interaction of bromocresol green-triton X-100 with prometryne by resonance light scattering measurements

作　　者：蒋婷[1] 张国文[1] 王安萍[1] 

机构地区：[1]南昌大学食品科学教育部重点实验室,南昌330047

出　　处：《分析试验室》2008年第6期89-92,共4页Chinese Journal of Analysis Laboratory

基　　金：长江学者和创新团队发展计划(IRT0540);江西省自然科学基金(2007GZH1924)项目资助

摘　　要：研究了扑草净-溴甲酚绿-Triton X-100体系的共振光散射光谱。加入经HCl酸化的扑草净后溴甲酚绿的共振光散射光谱有明显增强，表面活性剂Triton X-100的加入使光谱强度显著增加，产生最大散射波长为562nm的共振散射光信号，且散射光强度与扑草净的质量浓度呈线性关系，线性范围为0．01～0．35μg／mL，检出限为7．8ng／mL。该方法已用于实际样品中扑草净的测定。The spectral characteristics of resonance light scattering （RLS） for prometryne-bromocresol green-Triton X- 100 system were investigated. The interaction between bromocresol green and prometryne acidulated with HCl results in enhancement of RLS signals at 562 nm, and the interaction was sensitized by Triton X-100. The RLS intensity is proportional to the concentration of prometryne. The linear range is 0.01 - 0. 35 μg/mL, the limit of detection is 7.8 ng/mL. The method is simple, rapid and sensitive. It has been applied to the determination of prometryne in the real samples with satisfactory results.

关 键 词：共振光散射 扑草净 溴甲酚绿 除草剂 

分 类 号：O657.3[理学—分析化学]