粮油食品科技Issue(6):92-95,4.
固绿褪色光度法测定食品中痕量没食子酸丙酯
Fading spectrophotometric method for the determination of trace propyl gallate in food with FCF -fenton system
摘要
Abstract
Based on gallic acid ester (PG)of Fenton reagent oxidation solid green fade has obvious inhib-itory effect principle,A new method of determination of PG in food was established using spectrophoto-metric method.The influence of the solid green consumption and other factors on the system were stud-ied,the experimental conditions were optimized .In selected experimental conditions,the method of lin-ear regression equation for delta rho △A625nm =59.328ρ+0.008 5,the correlation coefficient (R2 )of 0.995 2,the linear range of 8.3 ×10 -4 ~1.6 ×10 -2 mg/mL,detection limit of 9.8 ×10 -5 mg/mL. Method used in the determination of food in PG,the determination results of RSD was 3.4%,the recov-ery in 96.25%~103.3%.关键词
分光光度法/没食子酸丙酯/固绿 FCF/Fenton 试剂Key words
Spectrophotometry/Propyl gallate/Fast green FCF/Fenton reagent分类
轻工纺织引用本文复制引用
谢宇奇,凌绍明,李子彬..固绿褪色光度法测定食品中痕量没食子酸丙酯[J].粮油食品科技,2015,(6):92-95,4.基金项目
桂林区域生态环境分析和污染控制重点实验室资助项目;广西教育厅高校科学技术研究项目 ()