Question

高分悬赏请人翻译一下文字？

金银花中多酚的提取及配合物的制备
摘 要 本文以有机溶剂回流浸取法从金银花中提取多酚，用紫外可见分光光度法测定多酚的产率，研究了不同极性的溶剂、溶剂溶液浓度、温度、浸取时间、料液比、pH、提取次数对提取金银花多酚的影响，用离子沉淀法纯化粗品，并用其与ZnCl2反应合成了金银花多酚锌（Ⅱ）配合物。通过红外光谱、紫外光谱、元素分析、热重分析和化学分析,推测配合物的结构组成ZnL2(L为多酚配体)。实验结果表明：提取金银花多酚的最佳实验条件是：乙醇为最佳溶剂、乙醇体积分数70%、温度70℃、浸取时间2 h、料液比为10：1、pH为4.0、提取次数为3次。

关键词：金银花、多酚、提取、紫外分光光度法、配合物

Answer 1

Honeysuckle in the polyphenol extracts and complexes Preparation
Abstract Baptist returning to organic solvents in the extraction of Honeysuckle Qufa from polyphenols, and UV-visible Determination of the polyphenol yield on the different polarity of the solvent, solvent solution concentration, temperature, leaching time, material Liquid ratio, pH, extraction times on the impact of polyphenol extracts honeysuckle, purified by ion precipitation crude, and its use and ZnCl2 was synthesized honeysuckle polyphenol Zinc (Ⅱ) complex. Through IR, UV, elemental analysis, thermal analysis and chemical analysis, to speculate complex structure of ZnL2 (L for polyphenol ligand). The results showed that: Honeysuckle polyphenol extracts the best experimental conditions are: ethanol as the best solvent, the volume fraction of 70 percent ethanol, temperature 70 ℃, leaching time 2 h, to feed than 10:1, pH 4.0, the number of extraction for three times.

Key words: honeysuckle, polyphenol, extraction, UV spectrophotometry, Complex