棉纤维含糖量分析测定的研究

THE SUGAR CONTENT OF COTTON STAPLE MEASUREMENT AND ANAIYSIS

本文研究了紫外光谱法(UV)测定棉纤维水溶性总糖的最佳实验条件,测得表观摩尔吸光系数ε_(282)=1.23×10~4L·mol^(-1)·cm^(-1),总糖回收率为99.4%,相对标准偏差为3%.利用高效液相色谱法(HPLC)对新疆长绒棉永溶性糖的组分进行了分析,结果表明:(1)果糖、葡萄糖、纤维二糖、拉伯糖是总糖的主要组分;(2)

This paper discusses the optimal experimental conditions under which the water-soluble total sugar content was measured by way of Ultraviolet Spectroscopy. The results are as follows:surficial Mole light absorbtion coefficient ε'282=1.23×10 · L · mol-1 · cm-2, the total Sugar Recovery is 99. 4%, and the Relative Standard Error is 3%, The components of water-soluble sugar content in Xinjiang long-staple cotton were also analysed by HPLC method, The results showed that; (1)the main components of total sugar are fructose, gluose,cellusosic bisug-ar, and Arabian sugar; (2)saccharose is almost unidentifiable.