%0 Journal Article
%T Investigation on the Changing Regularity of the Relationship Between Retention Index and Temperature of the GDX Series Stationary Phases<br>GDX系列固定相保留行为与柱温关系的考察
%A CUI Yong-chun
%A ZHANG Cheng-cong
%A WANG Zhen
%A HONG Pin-jie
%A <br>崔永春
%A 张承聪
%A 王真
%A 洪品杰
%J 色谱
%D 2000
%I 
%X A systematical measure of the polarity scale of the Chinese porous polymer beads of this series of stationary phase has been carried out, including the McReynolds constant at 120 degrees C by using squalane as non-polar stationary phase and the relative constant to GDX-103 at 180 degrees C. Based on the above work, two kinds stationary phases GDX-101 and GDX-103 were selected, on which the changing regularity of the relationship between retention index and temperature of the five "probes" of stationary polarity determination, including benzene, butanol, 1-nitropropane, 2-pentanone and pyridine were investigated. At the same time, the changing regularity with temperature of the relative McReynolds constant delta I of GDX-101 to GDX-103 was studied. It is found that Ip-theta c curve and delta I-theta c curve all showed a turning point at the temperature of 180 degrees C and that there was a maximum value of delta I at the temperature of 180 degrees C. So we think that the retention mechanism of this kind of stationary phase changed at 180 degrees C.
%K McReynolds constant
%K retention index
%K GDX
%K series stationary phase<br>麦氏常数
%K 保留指数
%K 气相色谱
%K 高聚物
%K GDX固定相
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=6579068328FE643F&jid=4D81E042D77AFEC6881D14759692069C&aid=9BA2AC08419A7FD800089856EA9FB80E&yid=9806D0D4EAA9BED3&vid=13553B2D12F347E8&iid=0B39A22176CE99FB&sid=1F199509C0B6C4D6&eid=B47A0E731AF43EB2&journal_id=1000-8713&journal_name=色谱&referenced_num=0&reference_num=6