摘要
以ＰＥＧ－２０Ｍ为固定相，三氟化硼为催化剂，３－缩甘油氧丙基三甲氧基硅烷（简称ＫＨ－５６０）为交联剂，二氯甲烷为溶剂，对预先用氯化钠沉积法粗糙化的玻璃毛细管柱进行动态涂渍。涂渍好的柱在１５０℃恒温４ｈ进行交联。对交联柱的性能进行了严格的评价。
A new method for the preparation of crosslinked PEG-20M capillary col-umn was proposed.The crosslinked PEG-20M glass capillary column was prepared by dynamic coating method with boron trifluoride as catalyst,3-glvcidyl-oxypropyl-trimethoxysilane as crosslinking agent.The inner surface of the glass capillary column used was roughened by sodium chloride deposition in advance.After coating of PEG-20M solution,the column was heated at 150℃for 4 hours to promote the crosslinking reaction.The performance of the immobilized PEG-20M was evaluat-ed.The column thus prepared has a low bleeding rate but a high residual activity.
出处
《北京大学学报（自然科学版）》
CSCD
北大核心
1994年第4期403-407,共5页
Acta Scientiarum Naturalium Universitatis Pekinensis
基金
国家自然科学基金
关键词
气相色谱
玻璃毛细管柱
硅烷
交联
gas chromatography
glass capillary column
crosslinked stationary phase
polyethylene glycol 20M
