NEW SELECTIVE SALT-WATER PHASES IN STEAM CHROMATOGRAPHY

被引：6

作者：

BEREZKINA, LG ^{[1
]}

BEREZKIN, VG ^{[1
]}

VIKTOROVA, EN ^{[1
]}

SOROKINA, EY ^{[1
]}

机构：

[1] RUSSIAN ACAD SCI,INST PETROCHEM SYNTH,MOSCOW 117912,RUSSIA

来源：

ANALYTICAL SCIENCES | 1995年 / 11卷 / 05期

关键词：

STEAM CHROMATOGRAPHY; SELECTIVE STATIONARY LIQUID PHASE; WATER-SALT PHASE; WATER-SALT PHASE SELECTIVITY; METHANOL; PETROL; METHANOL ANALYSIS;

D O I：

10.2116/analsci.11.771

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The advantages and limitations of steam chromatography are discussed. The peculiarities of a new steam chromatography version with a polar stationary liquid phase (inorganic salt-water) were investigated. The influence of the salt nature (as a stationary-phase component), temperature of resolution and water-vapor concentration in the mobile phase on the selectivity was studied using a homologous series of n-alcohols C-1 - C-8 as a molecular probe. The ascertained regularities as a rule differ from those known for the traditional liquid phase in gas chromatography. The specific efficiency of a packed column with a water-salt phase (NaNO3-water) and polydimethylsiloxane (SE-30) is similar. Examples of methanol determination in petrol and the impurities in a methanol determination are given.

引用

页码：771 / 776

页数：6

共 36 条

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