%0 Journal Article
%T Selectivity Tuning in Multi Binary Eluents for Reversed Phase Liquid Chromatography (RPLC)<br>反相色谱多二元溶剂的选择性调整
%A M Lü
%A H Zou
%A X Liang
%A P Lu
%A <br>吕美玲
%A 邹汉法
%A 梁鑫淼
%A 卢佩章
%J 色谱
%D 1999
%I 
%X n this article, the retention equation and the relationship between retention parameters and the parameters of molecular structure deduced from statistical thermodynamics in RPLC have been used to explain the difference of selectivity towards a particular species of compounds polycyclic aromatic hydrocarbons (PAHs). Methanol/water, acetonitrile/water and isopropanol/acetonitrile have been provided in advance, then the retention behaviors of sixteen PAHs under three binary solvent systems have been investigated. It is found that each pair of binary solvents of methanol/water, acetonitrile/water and isopropanol/acetonitrile has its own unique selectivity. The best selectivity obtained for acenaphthene and fluorene is methanol/water system for fluoranthene and pyrene is acetonitrile/water, and for benzoperylene and dibenzo anthracene is isopropanol/acetonitrile. So a three stepwise gradient elution of multi binary mobile phase can be chosen for separation of 16 PAHs.
%K reversed phase liquid chromatography
%K multi binary solvents
%K selectivity
%K polycyclic aromatic hydrocarbons<br>反相色谱，多二元溶剂，选择性，多环芳烃
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=6579068328FE643F&jid=4D81E042D77AFEC6881D14759692069C&aid=D7F5F79B7B81B86230A5B3C3B728FD1F&yid=B914830F5B1D1078&vid=BCA2697F357F2001&iid=CA4FD0336C81A37A&sid=94C357A881DFC066&eid=9CF7A0430CBB2DFD&journal_id=1000-8713&journal_name=色谱&referenced_num=0&reference_num=3