Application of stationary phases in preparative-scale gas chromatography

Yudina, I.P.; Volkov, S. A.; Zel'venskii, V. Yu.; Sakodynskii, K.I.

doi:10.1016/s0021-9673(00)93930-x

Cited by 11 publications

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“…Other materials evaluated as liquid phases for gas chromatography include a series of tetrachloroterephthaloyl oligomers (514), a variety of substituted polysiloxanes (32,360,939), bis-(2-ethylhexyl)-and di-n-butyl-tetrachlorophthalates in the separation of C7 to C10 olefins (739), a series of 3-alkoxypropionitriles (563), silanized and unsilanized Dexsil 400-GC (686) and Dexsil 300-GC, 700-8-73, and 700-8-95c for high temperature capillary column work (651), and n-heptyl hypophosphorous acid for the separation of high boiling paraffins, aromatics, and nitriles (16).…”

mentioning

confidence: 99%

Gas chromatography

Juvet¹,

Cram²

1974

Anal. Chem.

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This review surveys developments in the field of gas chromatography since publication of the last review in this series (178) and covers the years 1972-73. Gas chromatography continues to be one of the most active areas in analytical chemistry. In the 1973 Directory of Membership of the ACS Division of Analytical Chemistry (356), those listing their research specialty as "gas chromatography" were second in numbers only to those listing the drugs compiled by the editorial staff (423) and articles on applications of GC in alcohol analysis (417), hallucinogenic drugs ( 818), the analysis of narcotic analgesics and amphetamines (622), barbiturates (446), and phenothiazine drugs (158).

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mentioning

confidence: 99%

Gas chromatography

Juvet¹,

Cram²

1974

Anal. Chem.

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Siloxane/silarylene copolymers as stationary phases for capillary gas chromatography part I: Evaluation of silanol terminated dimethyl substituted polymers

Bemgård

Blomberg

Lymann

et al. 1987

J. High Resol. Chromatogr.

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SummaryThe thermal stability of silicones can be improved on replacement of certain of the oxygen atoms in the polymer backbone by phenyl groups. Such a polymer has been synthesized and evaluated foruseasstationaryphaseinfusedsilica capillarygas chromatography; the polymer was dimethyl substituted and silanol terminated. A selectivity was provided by the phenyl groups in the backbone. For comparative purposes, a silanolterminated dimethylpolysiloxane has also been evaluated. Both stationary phases gave columns of highest separation efficiency and the supporting fused silica surface was deactivated bythestationary phaseson thermal treatment. Further, low column bleeding was observed at the maximum temperature tested, 370OC. The phenyl-containing phase could be immobilized to 60% by heat treatment, but the pure dimethylpolysiloxane was 10% immobilized.Theinfluenceon immobilizationoffactors such as nature of the supporting surface, stationary phase silanol content, reaction temperature and atmosphere in the column during reaction has been studied.

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Siloxane/silarylene copolymers as stationary phases for capillary gas chromatography. Part II: Phenylsubstituted polymers

Bemgård¹,

Blomberg²,

Lymann³

et al. 1988

J. High Resol. Chromatogr.

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Key Words:Capillary gas chromatography Siloxane/silarylene copolymers as stationary phases High temperature gas chromatography OV-61 -OH Sila 4 showed low column bleeding at 370 "C, but prolonged heating at this temperature resulted in the broadening of n-alkane peaks when eluted at 90 "C. This indicates that excessive crosslinking has taken place during the heat treatment and the minimum allowable column operation temperature is thereby increased to ca. 120 "C. The separation of aza-arenes and of triglycerides are shown as applications.

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Application of stationary phases in preparative-scale gas chromatography

Cited by 11 publications

References 0 publications

Gas chromatography

Gas chromatography

Siloxane/silarylene copolymers as stationary phases for capillary gas chromatography part I: Evaluation of silanol terminated dimethyl substituted polymers

Siloxane/silarylene copolymers as stationary phases for capillary gas chromatography. Part II: Phenylsubstituted polymers

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