Cyclodextrin stationary phases for the gas—solid chromatographic separation of inorganic gases

Reid, George L.; Wall, W.T.; Armstrong, Daniel W.

doi:10.1016/0021-9673(93)83148-l

Cited by 7 publications

(2 citation statements)

References 27 publications

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“…This body of prior work seemed to indicate that native cyclodextrins might make effective GSC stationary phases for the separation of a variety of gases. Recently we completed work showing that columns packed with particles to which a-or pcyclodextrin was bonded ("brush type") effectively separated light hydrocarbons and inorganic gases [53,54]. Also, evidence for multiple retention mechanisms was found.…”

Section: Gasmentioning

confidence: 98%

Cyclodextrin PLOT columns for the gas‐solid chromatographic separation of light hydrocarbons and inorganic gases

Reid

Armstrong

1994

J Microcolumn Separations

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Abstract. Alpha and beta cyclodextrin (a-and /3-CD) were chemically bonded to porous layer fused silica open tubular columns and used as gas-solid chromatographic (GSC) stationary phases for the separation of Cl to C6 hydrocarbons and a variety of inorganic gases. In general, these cyclodextrin PLOT columns were superior to the analogous packed columns. The capillary columns show similar selectivities with an increase in efficiency and number of theoretical plates over the packed columns. The cyclodextrin stationary phases show good selectivities toward the light hydrocarbons and inorganic gases on capillary columns as short as ten meters. Subambient temperatures allow the baseline resolution of oxygen from nitrogen. These columns have been effectively utilized at temperatures up to 260°C without loss of efficiency or degradation of selectivity.

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Section: Gasmentioning

confidence: 98%

Cyclodextrin PLOT columns for the gas‐solid chromatographic separation of light hydrocarbons and inorganic gases

Reid

Armstrong

1994

J Microcolumn Separations

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“…However, their measurements were performed at temperatures from 50 to 80 °C. More recently, Armstrong et al. , used CDs as stationary phases for the gas−solid chromatographic separation of light hydrocarbons and inorganic gases at ambient to elevated temperatures. They showed that these CD stationary phases provided a practical and efficient means for separating a wide variety of gases.…”

mentioning

confidence: 99%

Extraction of Volatile PAHs from Air by Use of Solid Cyclodextrin

1996

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An approach for extraction of polycyclic aromatic hydrocarbons (PAHs) from air using solid cyclodextrin is presented. A comparison study in which β-cyclodextrin is replaced by α-cyclodextrin provides evidence that β-cyclodextrin extracts vapor phase PAHs by formation of inclusion complexes rather than by association or adsorption interactions. Thus, solid cyclodextrin complexes with vapor phase PAHs and thereby reduces their volatilities. The gas-solid interaction of the PAHs with β-cyclodextrin and the effect of β-cyclodextrin on the volatilities of these compounds are discussed. Fluorescence and absorbance spectroscopies are used to examine the variables that affect the formation of the PAH complexes with the solid cyclodextrin. The use of this system for improved ambient air sampling is proposed.

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