摘要
GDX 101是苯乙烯和二乙烯基苯的共聚物,具有强吸附性能,耐腐蚀,且无流失现象,已被广泛用作气相色谱固定相。近年来一些聚苯乙烯类树脂也用于高效液相色谱,其性能类似于反相色谱的ODS柱。ODS柱具有高效、重现性好等优点,但在pH=1.5～8的酸度范围之外,其化学性质不稳定会发生降解。若使用GDX类树脂,其应用的pH值可增加到1～13,并对有机酸、碱的分离更加有效。此外,因这类树脂具有高疏水性,在分离过程中不引起峰形拖尾。所以用作高效液相色谱固定相是有实用价值的。
Small and uniform particles (5-15 um) of GDX 101 resins can be obtained by grinding with a colloid mill and elutriating with a home-made solvent elutriation device. The resin elutriated is packed into a column by a high pressure slurry packing technique. In order to know the column performance, the permeability coefficient and efficiency of the column are calculated. Some samples of alkylbenzene are separated. The results show that GDX 101 can be used in HPLC and its behaviour is similar to that of the ODS column.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1990年第6期663-665,共3页
Chemical Journal of Chinese Universities
