GAS-CHROMATOGRAPHIC STUDY OF REVERSIBLE ADDUCT FORMATION BETWEEN NUCLEOPHILIC SOLUTES AND STATIONARY PHASES CONTAINING LANTHANIDE BETA-DIKETONATES

被引：7
|
作者：
KOWALSKI, WJ
机构：
[1] Institute of Chemistry, Silesian University, Katowice, PL-40-006, 9, Szkolna Street
来源：
CHROMATOGRAPHIA | 1991年 / 31卷 / 3-4期
关键词：
COMPLEXATION GAS CHROMATOGRAPHY; EQUILIBRIUM CONSTANTS OF ADDUCT FORMATION; DIKETONATES OF EU AND PR; ALIPHATIC ALCOHOLS; METHYL KETONES; AND METHYL ETHERS; CARBOXYLIC ACID METHYL ESTERS;
D O I：
10.1007/BF02274567
中图分类号：
Q5 [生物化学];
学科分类号：
071010 ; 081704 ;
摘要：
Complex formation between fluorinated and methylated beta-diketonates of praseodymium and europium, dissolved in a polydimethylsiloxane stationary phase, and aliphatic alcohols, methyl ketones, methyl ethers and carboxylic acid methyl esters has been studied. Investigations were carried out isothermally in the range 90 to 130-degrees-C. An increase in retention values measured on the complexing stationary phase for the test solutes was the primary observation. Equilibrium constants (K) of adduct formation were determined from retention data. It was established that fluorinated lanthanide beta-diketonates enhance adduct formation more selectively than the corresponding methyl compounds. Decrease in the ionic radii from praseodymium to europium gave rise to increased K values.
引用
收藏
页码：168 / 170
页数：3
相关论文
共 41 条
12345