在天然药物成分的制备性分离中短柱层析的应用

将经典层析柱改为短粗型,进行制备性成分分离。本文指出其使用的关键及其特点。

并联多柱色谱研究

研究了并联多柱色谱的柱效 ,证实并联多柱色谱既可以保证较高的柱效又可以增加柱容量 ,非常适用于大剂量的制备性分离。研究还试验了不同直径的经典柱色谱的柱效 ,得知较小柱直径的柱壁效应较严重 。

Preparation of Palladium-Silica Conjugated Membrane for Selective Hydrogen Permeation

Palladium membranes were prepared on an α-alumina support bymetal-organic compound chemical vapor deposition (MOCVD) method frompalladium (II) acetate precursor. Permeation properties of hydrogenand helium gas were studied as a function of the number of times ofdeposition of palladium on the peeling off phenomenon of palladium,which is common in electroless plated membrane, was observed. Silicawas introduced into the pores to prevent the palladium grain frompeeling off. The palladium-silica conjugated membrane does not showthe peeling off phenomenon and can withstand the high temperature upto 800 deg. C which is the upper limit of our apparatus.

用离心分配色谱法从知母根茎中提取芒果苷

离心分配色谱法（CPC）是一种液一液分配的色谱技术，具有分离时间短、无样品吸附以及使用不同的溶媒系统精制不同的化合物的优点，使其广泛用于天然产物的制备性分离。作者对百合科植物知母Anemarrhena asphodeloides根茎甲醇提取物进行制备性的CPC分离，所得芒果苷经HPLC分析其纯度超过959／6。其结构由1H—NMR、13C—NMRNIESI—MS光谱数据确定。