Current aspects of the stationary phase in gas chromatography

Blomberg, Lars G.

doi:10.1002/jhrc.1240051003

Cited by 44 publications

(39 citation statements)

References 137 publications

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“…Nonpolar polysiloxane stationary phases [1] are characterized by high efficiencies, rapid solute diffusion characteristics, remarkable thermal stabilities, good coating and cross-linking properties, and low temperature dependence of viscosity [2,3]. However, they do not exhibit good selectivity for all compound classes, especially for isomeric compounds and analytes with close physicochemical properties.…”

Section: Introductionmentioning

confidence: 99%

Dicyanobiphenyl polysioloxane stationary phases for capillary column gas chromatography

et al. 1997

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SummaryThe chromatographic performance of newly developed dicyanobiphenyl polysiloxane stationary phases were evaluated and compared with the performance of other polar stationary phases, including the previously reported monocyanobiphenyl polysiloxanes. Due to the unique combination of polarizable biphenyl and polar cyano functionalities in the side chains of the flexible polysiloxane backbone, and by virtue of their mild liquid crystalline properties, the new stationary phases provide excellent resolution of a wide variety of analytes, both polar and nonpolar, in both GC and SFC. They can be easily coated and cross-linked in open tubular columns, and the resultant columns demonstrate excellent efficiency and performance at temperatures up to 280-300 ~ The new stationary phases exhibit enhanced selectivities for various types of isomeric compounds.

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Section: Introductionmentioning

confidence: 99%

Dicyanobiphenyl polysioloxane stationary phases for capillary column gas chromatography

et al. 1997

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“…These phases and their retention properties do not seem to be altered by water, despite the possibility of cleavage of the silicon atom network by water [35], unlike the columns produced a decade ago [36]. The tested columns are therefore suitable for use in the COSAC experiment [6].…”

Section: Effect Of Presence Of Watermentioning

confidence: 91%

Dual column capillary gas chromatographic system for the in situ analysis of volatile organic compounds on a cometary nucleus

Szopa¹,

Pra

Tellini

et al. 2004

J of Separation Science

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Two Wall Coated Open Tubular capillary columns, coated with poly(cyanopropylphenyl-dimethyl)siloxane and poly(diphenyl-dimethyl)siloxane stationary phases, have been selected for use in the COmetary SAmpling and Composition space experiment for the separation and identification of the wide range of volatile organic compounds which could be present in cometary nuclei. This article presents the main characteristics of the tandem column system for the analysis of solutes of cometary interest within the constraints of space instrumental operating conditions. The high efficiency of the columns is demonstrated and the influence of the operating conditions on their separation properties are investigated. The studied columns exhibit complementary retention pattern: their use in a dual column system makes it possible to achieve the separation and the identification of the compounds of interest. Finally, the good analytical behavior of the columns when analyzing samples which include large amounts of water, the main presumed volatile in comets, is demonstrated. The presented results thus show the suitability of the selected tandem columns system for the desired analyses, and their performance on adaptation to in-situ cometary chemical investigation.

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“…Developments in column technology for gas chromatography were dramatic during the 1970s, proceeding from packed columns to sophisticated glass and fused silica high resolution capillary columns within a few short years (Jennings, 1980;Blomberg, 1982Blomberg, , 1984Novotny, 1989). Lautamo, Schirmer and Jennings (1998) recently summarized column developments over the past half century.…”

Section: Development Of Organic Analytical Methodsmentioning

confidence: 98%

Evolution of Organic Analytical Methods in Environmental Forensic Chemistry

Wait

2000

Environmental Forensics

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Current aspects of the stationary phase in gas chromatography

Cited by 44 publications

References 137 publications

Dicyanobiphenyl polysioloxane stationary phases for capillary column gas chromatography

Dicyanobiphenyl polysioloxane stationary phases for capillary column gas chromatography

Dual column capillary gas chromatographic system for the in situ analysis of volatile organic compounds on a cometary nucleus

Evolution of Organic Analytical Methods in Environmental Forensic Chemistry

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