流动注射化学发光法测定麝香草酚  

Determination of Thymol by Flow-Injection Chemiluminescence

作　　者：李少芳 

机构地区：[1]漳州市产品质量检验所化验室,福建省漳州市马鞍山路8号363000

出　　处：《光谱实验室》2012年第4期2120-2123,共4页Chinese Journal of Spectroscopy Laboratory

基　　金：漳州市科学技术局基金(No.Z06008)

摘　　要：在硫酸介质下研究麝香草酚在高锰酸钾-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实验,据此建立了流动注射化学发光法检测麝香草酚的新方法。在高锰酸钾-罗丹明6G体系中测定麝香草酚的线性范围为1.0×10^(-8)—5.0×10^(-7)g/mL,检出限为4.2×10^(-9)g/mL;对浓度为2.0×10^(-7)g/mL的麝香草酚连续11次测定,其相对标准偏差为1.4%。方法用于无极膏中麝香草酚含量的测定,测得测得平均回收率为105.0%,结果满意。Flow injection chemiluminescence（FICL） method was developed for the determination of thymol,based on the chemiluminescence reaction of thymol with potassium permanganate-rhodamine 6G in H2SO4 medium.The main factors which affected the intensity of chemiluminescence were investigated.The linear range for the determination was 1.0×10^-8-5.0×10^-7g/mL,the detection limit was 4.2×10^-9g/mL,and the RSD was 1.4%for 11 measurements to 2.0×10^-7g/mL thymol.This method has been applied to the determination of thymol in Wuji cream,and the average recovery is 105.0%with satisfaction results.

关 键 词：麝香草酚 流动注射化学发光 高锰酸钾 罗丹明6G 

分 类 号：O657.39[理学—分析化学]