| FC法测定木素和纸浆中的酚羟基 |
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| 引用本文： | 赖玉荣,张曾,黄干强,迟聪聪.FC法测定木素和纸浆中的酚羟基[J].中国造纸学报,2007,22(1):54-58. |
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| 作者姓名： | 赖玉荣 张曾 黄干强 迟聪聪 |
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| 作者单位： | 1. 中国海诚工程科技股份有限公司,上海,200031
2. 华南理工大学制浆造纸工程国家重点实验室,广东广州,510640 |
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| 基金项目： | 国家自然科学基金;广东省自然科学基金 |
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| 摘 要： | 应用FC法(Folin-Ciocalteu试剂法)测定了硫酸盐木素与H2O2反应前后酚羟基含量的变化,并测定了蒸煮、氧脱木素和H2O2漂白后不同纸浆中残余木素的酚羟基含量。测定结果表明,硫酸盐木素在与碱性H2O2反应后,酚羟基含量降低,高温H2O2反应后的下降程度更为明显;浆料残余木素中酚羟基含量随浆料卡伯值的降低而下降。
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| 关 键 词： | 木素 酚羟基 FC法 |
| 文章编号： | 1000-6842（2007）01-0054-05 |
| 修稿时间： | 2006-09-01 |
Determination of the Content of Phenolic Hydroxyl Groups in Lignin and Pulp with FC-Method |
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| LAI Yu-tong,ZHANG Zeng,HUANG Gan-qiang,CHI Cong-cong.Determination of the Content of Phenolic Hydroxyl Groups in Lignin and Pulp with FC-Method[J].Transactions of China Pulp and Paper,2007,22(1):54-58. |
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| Authors: | LAI Yu-tong ZHANG Zeng HUANG Gan-qiang CHI Cong-cong |
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| Affiliation: | 1. China Haisum Engineering Co. Ltd, Shanghai, 200031 ; 2. State Key Lab of Pulp and Paper Engineering, South China University of Technology, Guangzhou , Guangdong Province, 510640 |
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| Abstract: | The FC-method using the reagents of Folin and Ciocalteu(FC) for the determination of the content of free phenolic hydroxyl groups in the lignin and the residual lignin in pulp is a simple and rapid method.In this paper,the FC-method was adopted to determine the change of the phenolic hydroxyl groups in the kraft lignin before and after the reaction with hydrogen peroxide.The phenolic hydroxyl groups in pulp samples with different kappa number after cooking,oxygen delignification and peroxide bleaching were also determined.The results showed that after the reaction with alkaline hydrogen peroxide,the content of phenolic hydroxyl groups in lignin goes down.The drop becomes more obvious under high temperature.The results from the pulp samples indicated that the phenolic hydroxyl group's contents in the pulp decreases with the decrease of kappa number. |
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| Keywords: | lignin phenolic hydroxyl FC-method determination |
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