铈(IV)-罗丹明6G化学发光体系测定中药清咽片中没食子酸  

Chemiluminescence Flow Injection Determination of Gaellic Acid Based on A Rhodamine 6G Sensitized Cerium(IV) Method

作　　者：饶志明[1] 卓婧[1] 

机构地区：[1]漳州师范学院化学与环境科学系,福建漳州363000

出　　处：《漳州师范学院学报（自然科学版）》2008年第4期78-81,共4页Journal of ZhangZhou Teachers College（Natural Science)

摘　　要：研究在硫酸--盐酸介质下,没食子酸与铈(Ⅳ)和罗丹明6G体系的化学发光行为,并对影响化学发光强度的诸因素进行试验和探讨,据此建立了流动注射化学发光法检测没食子酸的新方法.检测的线性范围为1.0×10-8～1.0×10-6g/mL;检出限为3.0×10-9g/mL;对浓度为1.0×10-7g/mL没食子酸连续11次测定,其相对标准偏差为2.1%.该方法应用于清咽片中没食子酸含量的测定,结果满意.A new flow injection chemiluminescence （FICL） method for the determination of Gallic Acid has been developed. It is based on the chemiluminescence＇s reaction of Gallic Acid with Cerium（Ⅳ） （Ce（Ⅳ））-Rhodamine 6G in sulfuric-chlorhydric acid medium, and the experiments on factors that enhance chemiluminescence. The concentration range of linear response was 1.0×10^-8-0.0×10^-6g/mL, a detection limit of 3.0×10^-9 g/mL and RSD of 2.1% （n = 11, Cs = 1.0 × 10^-7 g]mL）. The proposed method was used to determine Berberine Hydrochloride in tablet with satisfactory results.

关 键 词：没食子酸 流动注射 化学发光 罗丹明6G 铈(Ⅳ) 

分 类 号：O657.3[理学—分析化学]