摘要
采用凝胶渗透色谱与激光小角光散射仪联机(GPC/LALLS)测定了青岛海洋大学海洋药物与食品研究所新研制的四种海藻多糖的分子量分布。分别得到四种海藻多糖的微分、积分分子量分布曲线图、分布宽度指数(D)和数量平均、重量平均和Z均分子量。
A Low Angle Laser Light Scattering Photometer dector (LALLS)used with Gel Permeation Chromatography(GPC/LALLS)has been applied for the determination of molecular weight distribution (MWD) of four sea weed polysacchrides.At 25℃,in 0.8% NaCl aqueous solution,the four samples polydispersity index (D),differential weight fraction plot,cumulative weight fraction plot and number-average molecular weight(Mn),weight-average molecular weight (Mw)and Z-average molecular weight (Mz) were obtained by GPC/LALLS.
出处
《中国海洋大学学报（自然科学版）》
CAS
CSCD
1992年第S1期52-58,共7页
Periodical of Ocean University of China
关键词
海藻多糖
分子量和分布测定
凝胶渗透色谱
小角激光散射仪
分布宽度指数
sea weed polysacchride
molecular weight and distribution
Low Angle Laser Light Scattering Photometer
Gel Permeation Chromatogrphy
poly-dispersity index
determination
