Document Details

Document Type : Article In Journal 
Document Title :
GC- MS ANALYSIS OF VOLATILE
GC-MS تحليل المتطايرة
 
Subject : GC- MS ANALYSIS OF VOLATILE 
Document Language : English 
Abstract : The seeming “dual nature” of ionic liquids (ILs) for separating both apolar and polar compounds suggests that ILs may have a great potential for complex samples like essential oils from herbal plants that contain a great variety of compounds. In the present work, a geminal dicationic IL, 1,9-di(3-vinylimidazolium)nonane bis[(trifluoromethyl)sulfonyl]imidate, was investigated for this purpose. To find the best way to achieve satisfactory separations simultaneously for the compounds in essential oils, the dicationic IL was used as the stationary phase for capillary gas chromatography (GC) in two ways, either in its pure state or as a mixed stationary phase with monocationic ILs and a polysiloxane diluent. Interestingly, it was found that the mixed stationary phase exhibited a much better selectivity for polar and nonpolar compounds than either the dicationic IL or the polysiloxane, suggesting that a kind of synergistic effect occurred when these stationary phases were combined in the way described. A comparison with two commercial stationary phases (polar and nonpolar) indicated that this novel mixed stationary phase behaved in a way closer to a polar stationary phase in terms of selectivity and elution order. The present work demonstrates that the mixed stationary phase is efficient and selective and can be an alternative choice for the GC analysis of samples of complex composition. 
ISSN : 1618-2650 
Journal Name : Analytical and Bioanalytical Chemistry 
Volume : 399 
Issue Number : 4 
Publishing Year : 1427 AH
2007 AD 
Article Type : Article 
Added Date : Sunday, March 24, 2013 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
صالح طارق جمالJamal, Saleh TariqInvestigatorDoctorate 

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