%0 Journal Article
%T Thermodynamic characteristics of stoichiometric displacement linear parameter log I in reversed-phase liquid chromatography]<br>反相液相色谱中计量置换线性参数logI的热力学特征
%A Q Bai
%A X D Geng
%A <br>白泉
%A 耿信笃
%J 色谱
%D 2000
%I 
%X Based on the physical meaning of each term in the linear parameter log I (a constant correlating the affinity of solute to stationary phase) of stoichiometric displacement model for retention(SDM-R) of solute, the thermodynamic characteristics of log I of solute in reversed-phase liquid chromatography (RPLC) were investigated theoretically. This point was tested by experimental data with two linear relationships: (1) plot of log I vs 1/T (T is absolute temperature) with apolar, polar small solutes and proteins; (2) plot of log I vs log Po/w (partition coefficient of solute between n-octanol and water) with apolar and polar small solutes. From the comparison of the magnitude of partition coefficient between small solute and proteins, a phenomenon that the resolution of small solutes depends on column length but that of proteins almost to be independent of column length is quantitatively explained.
%K NULL<br>液相色谱
%K 线性参数logⅠ
%K 热力学性质
%K 计量置换
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=6579068328FE643F&jid=4D81E042D77AFEC6881D14759692069C&aid=BAA3A303A3A9400E4DC2053A0A0349BC&yid=9806D0D4EAA9BED3&vid=13553B2D12F347E8&iid=38B194292C032A66&sid=3A0155B37D8FF829&eid=23104246A5FCFCEF&journal_id=1000-8713&journal_name=色谱&referenced_num=0&reference_num=8