摘要
高锰酸钾-甲醛-荧光素-没食子酸丙酯在酸性介质中有较好的发光特性,在最佳实验条件下,当没食子酸丙酯溶液浓度在8.0×10-6～2.0×10-3g/L范围内与化学发光强度有良好的线性关系(r=0.9960),对1.0×10-3g/L的没食子酸丙酯溶液平行测定11次,RSD为1.9%,检出限为5.6×10-6g/L。该法用于食用调和油中没食子酸丙酯的测定,结果令人满意。
A chemiluminescence method for Propyl gallate determination,which is based on the enhancement effect of the chemiluminescence produced from the acid potassium permanganate-formaldehyde-fluorescein-Propyl gallatesystem,is described in this paper.Under optimized conditions,the enhanced CL intensity on the Propyl gallate concentration is linear in the range of 8.0×10-6～2.0×10-3 g/L with a detection limit of 5.6×10-6 g/L.Relative standard deviation（RSD） is 1.9 %（n = 11） for 1.0×10-3 g /L Propyl gallate.The proposed method has been successfully applied to the determination of Propyl gallate in edible blended oil samples with satisfactory results.
出处
《分析试验室》
CAS
CSCD
北大核心
2012年第12期66-68,共3页
Chinese Journal of Analysis Laboratory
基金
遵义师范学院教研基金项目(11-07)
贵州省教育厅自然科学研究项目(黔教科(2007)070号)
遵义市科学技术社会发展项目(遵市科合社字(2007)22号)资助
关键词
化学发光
没食子酸丙酯
KMNO4
食用调和油
Chemiluminescence
Propyl gallate
Potassium permanganate
Edible blended oil
