GAS-CHROMATOGRAPHIC SEPARATION OF PAIRS OF ISOTOPIC MOLECULES

被引：32

作者：

SHI, BC ^{[1
]}

DAVIS, BH ^{[1
]}

机构：

[1] CTR APPL ENERGY RES,3572 IRON WORKS PIKE,LEXINGTON,KY 40511

来源：

JOURNAL OF CHROMATOGRAPHY A | 1993年 / 654卷 / 02期

关键词：

D O I：

10.1016/0021-9673(93)83377-5

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

Nine pairs of isotopic (hydrogen/deuterium) molecules have been completely separated and quantitatively determined by gas chromatograph using a DB-5 column. All pairs exhibited an inverse isotope effect. The differences of enthalpy, entropy and free energy changes have been calculated for the chromatographic process. The data show that deuterium on the aliphatic part of a molecule makes more of a contribution to the inverse isotope effect than those on aromatic rings.

引用

页码：319 / 325

页数：7

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