Retention Mechanism of Phenolic Compounds in Subcritical Water Chromatography

被引：6

作者：

Wu Yichao ^{[1
]}

Deng Xiuqing ^{[1
]}

Mao Yinchun ^{[1
]}

Zhang Yan ^{[1
]}

Liu Jiaqin ^{[1
]}

Rong Li ^{[1
]}

Xu Zhihong ^{[1
]}

机构：

[1] Xihua Univ, Sch Phys & Chem, Chengdu 610039, Peoples R China

来源：

CHEMICAL RESEARCH IN CHINESE UNIVERSITIES | 2015年 / 31卷 / 01期

关键词：

Subcritical water chromatography; Phenols; Retention mechanism; Hydrogen bond; PERFORMANCE LIQUID-CHROMATOGRAPHY; FLAME IONIZATION DETECTION; SUPERHEATED WATER; HIGH-TEMPERATURE; ELEVATED-TEMPERATURES; STATIONARY-PHASE; MOBILE-PHASE; SUPERCRITICAL WATER; SEPARATION; ELUENT;

D O I：

10.1007/s40242-015-4360-7

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The transfer enthalpies and entropies of hydroxyl and nitryl in different mobile phase systems were compared by van't Hoff curve. Results suggest that the presence of acetonitrile and methanol in the mobile phase may decrease the interaction of solute and stationary phase with respect to subcritical water, thereby reducing the contribution of enthalpy to the retention. Retention mechanisms of phenolic compound appear to be more similar in subcritical water and water/methanol systems on the PRP-1 column. Hydrogen bond in subcritical water system plays a very important role in the retention of the phenols.

引用

页码：103 / 106

页数：4

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