THE RETENTION MECHANISM IN POLY(ETHYLENE GLYCOL)-20M LAYER ON THE SURFACE OF A SILANIZED SUPPORT

被引：3

作者：

SUROWIEC, K ^{[1
]}

RAYSS, J ^{[1
]}

机构：

[1] MARIA SKLODOWSKA CURIE UNIV,DEPT CHEM PHYS,PL-20031 LUBLIN,POLAND

来源：

CHROMATOGRAPHIA | 1990年 / 30卷 / 11-12期

关键词：

GAS CHROMATOGRAPHY; POLY(ETHYLENE GLYCOL)-20M; SILANIZED SUPPORTS; RETENTION MECHANISMS;

D O I：

10.1007/BF02269736

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

The properties of poly(ethylene glycol) 20M (PEG 20M) on the silanized surface of Chromosorb W HMDS were investigated. It was found that the surface layer of PEG 20M is in a liquid form below its melting temperature. The stationary phase loading ratio is above 0.105 the main retention mechanism is partition in both the liquid and solid forms of PEG 20M. The contribution of adsorption to the retention volume was also determined. It is suggested that in the case of methanol this contribution is caused by adsorption on the residual silanol groups present on the support surface whereas for n-octane this is rather adsorption on the gas-liquid interface.

引用

页码：630 / 634

页数：5

共 11 条

[1] UNEXPECTED BEHAVIOR OF A COMMON GAS-CHROMATOGRAPHIC PHASE [J].

AUE, WA ;

HASTINGS, CR ;

KAPILA, S .

JOURNAL OF CHROMATOGRAPHY, 1973, 77 (02) :299-307

[2]

CONDER JR, 1979, PHYSICOCHEMICAL MEAS, P32

[3]

FURTON KG, 1987, J CHROMATOGR, V399, P47

[4]

KERSTEN BR, 1987, J CHROMATOGR, V399, P1

[5] ADSORPTION ON LIQUID PHASE IN GAS CHROMATOGRAPHY [J].

MARTIN, RL .

ANALYTICAL CHEMISTRY, 1961, 33 (03) :347-&

[6] IDENTIFICATION AND EVALUATION OF RETENTION MECHANISMS IN GAS-LIQUID-CHROMATOGRAPHIC SYSTEMS [J].

NIKOLOV, RN .

JOURNAL OF CHROMATOGRAPHY, 1982, 241 (02) :237-256

[7] LIQUID SURFACE EFFECTS IN GAS CHROMATOGRAPHY [J].

PECSOK, RL ;

DEYLLANA, A ;

ABDULKARIM, A .

ANALYTICAL CHEMISTRY, 1964, 36 (03) :452-&

[8] STUDY OF LIQUID-GAS INTERFACIAL ADSORPTION BY GAS-CHROMATOGRAPHY WITH SILANIZED SUPPORTS [J].

SERPINET, J .

ANALYTICAL CHEMISTRY, 1976, 48 (14) :2264-2265

[9] USE OF CARBOWAX-20M GLASS-CAPILLARY COLUMNS BELOW THEIR LOWER TEMPERATURE LIMIT [J].

SOJAK, L ;

KRUPCIK, J .

JOURNAL OF CHROMATOGRAPHY, 1980, 190 (02) :283-290

[10] THE PROPERTIES OF POLY(ETHYLENE GLYCOL) 20M LAYER ON THE SURFACE OF A SILANIZED SUPPORT [J].

SUROWIEC, K ;

RAYSS, J .

CHROMATOGRAPHIA, 1989, 27 (9-10) :412-416

← 1 2 →