磷钨酸银纳米粒子光散射法测定多巴胺  

A Light Scattering(LS) Method for the Determination of Dopamine Based on Ag_3PW_(12)O_(40) Nanoparticles

作　　者：王俊[1,2] 梁文婷[1,3] 樊小林[1,3] 黄承志[1,2,3] 

机构地区：[1]发光与实时分析教育部重点实验室,重庆400715 [2]西南大学药学院,重庆400715 [3]西南大学化学化工学院,重庆400715

出　　处：《西南大学学报（自然科学版）》2013年第5期111-115,共5页Journal of Southwest University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(21035005)

摘　　要：在醋酸-醋酸钠缓冲溶液pH=5.0的条件下,多酸纳米粒子Ag3PW12O40可以与多巴胺相互作用.以光散射信号为表征手段,可以得出在多巴胺浓度为3.0×10-8～1.2×10-5 mol/L的范围内光散射信号随着多巴胺浓度的增加呈线性增强,检出限(3σ)为1.4×10-8 mol/L.这种多巴胺的光散射测定方法被成功应用于盐酸多巴胺注射液的测定.A light scattering （LS） method based on Ag3 PWl2 040 nanocubes for the determination of dopa- mine is described in this paper. Dopamine can interact with AgaPW12 040 nanocubes. In a CH3COOH CHaCOONa buffer solution with a pH value of 5.0 and with dopamine concentration in the range of 3.0× 10-8 -1. 2× 10-5 mol/L, their LS signal is steadily enhanced with increasing dopamine concentration, the limit of determination （30） being 1.4× 10-8 mol/L. The recommended method has been successfully used for the analysis of dopamine hydrochloride injection.

关 键 词：磷钨酸银纳米粒子 多巴胺 光散射光谱 

分 类 号：O657.3[理学—分析化学] TQ460.72[理学—化学]