天然气化工(C1化学与化工)2018，Vol.43Issue(2)：46-50,5.
Folin-Ciocalteu光度法测定栲胶法脱硫过程总多酚
Determination of total polyphenol in tannic extract desulfurization process by Folin-Ciocalteu spectrophotometry
摘要
Abstract
The tannin extract desulfurization process is based on the redox state transition of polyphenol. The content of polyphenol in Folin-Ciocalteu reagent was optimized by using the band data to replace the traditional single-wavelength data. The quantitative method of total polyphenol for tannin extract desulfurization process was established.The concentration of gallic acid was linear in the range of 1.0-6.5 μg/mL with a correlation coefficient of 0.9997. The precision (RSD) was 0.21%, and the recoveries were in the range of 97.4%-108.9%. The method was applied to determine the concentration of total polyphenol during the regeneration process of typical tannin extract. The results showed that the polyphenols in tannin extract could not be oxidized to quinone in the oxidation regeneration process.关键词
栲胶/脱硫过程/总多酚/Folin-Ciocalteu法/分析Key words
tannin extract/desulfurization process/total polyphenol/Folin-Ciocalteu spectrophotometry/analysis分类
化学化工引用本文复制引用
曹家兴,袁园,浮建军,张震,姚小秋,钱福军,莫友彬,薛敏华..Folin-Ciocalteu光度法测定栲胶法脱硫过程总多酚[J].天然气化工(C1化学与化工),2018,43(2):46-50,5.基金项目
国家自然科学基金(21266003),广西教育厅自然科学基金(2012024LX001) （21266003）
