食品科学 ›› 2002, Vol. 23 ›› Issue (5): 107-111.

• 分析检测 • 上一篇    下一篇

盐酸水解—硫酸钡重量法测定硫酸酯化多糖硫酸基含量方法考察

 张惠芬, 李宝才, 范家恒, 董玉莲, 闻克威, 周建元   

  1. 昆明理工大学生物与化工工程学院,中国科学院广州地球化学研究所,中国科学院南海海洋研究所海洋生物应用技术实验室
  • 出版日期:2002-05-15 发布日期:2012-02-13

Study on Gravimetric Analysis of Hydrochloric Acid Hydrolysis and Barium Sulfate Precipitation in sulfated poly saccharides

 ZHANG  Hui-Fen, LI  Bao-Cai, FAN  Jia-Heng, DONG  Yu-Lian, WEN  Ke-Wei, ZHOU  Jian-Yuan   

  • Online:2002-05-15 Published:2012-02-13

摘要: 对盐酸水解—硫酸钡重量法测定硫酸酯化多糖(SPS)中硫酸基含量进行了方法学考察。通过对测试样品水解时间,盐酸浓度,盐酸溶液用量,样品称重,重复性(精密度)及回收实验,表明称样量200~300mg,盐酸浓度为1mol/L,酸用量15ml,水解时间4h,按本方法的操作分析,所测得结果可靠,准确度均非常好。方法适用于硫酸酯化多糖及相关食品和健康食品中硫酸基含量测定。

关键词: 硫酸酯化多糖, 硫酸基, 含量测定, 方法学考察

Abstract: The determination of sulfate radical content in sulfated polysaccharides(SPS) by gravimetric analysis of hydrochloric acid hydrolysis and barium sulfate precipation was investigated methodologically.By experiments of hydrolysis time,concentration of hydrochloric acid solution,amount of hydrochloric acid solution added for hydrolysis,weighing amount of sample for analysis,repeatability as well as recovery,the results were satisfactorily achieved under the analysis condition:hydrolysis time 4 h,HCl concentration 1mol/L,HCl solution added 15ml,sample weighed 200~300mg.Analyze samples as this method and procedure,the results achieved are reliable and accuracy is much better.This method,therefore,is suitable for determination of sulfate radical content of sulfated polysaccharides and related food and health food products.

Key words: Sulfated polysaccharides , Sulfate radical , Determination of sulfate radical , Methodological investigation