RETENTION BEHAVIOR OF A NOVEL IMIDAZOLIUM BASED IONIC LIQUID AS STATIONARY PHASE FOR CAPILLARY GAS CHROMATOGRAPHY AND ITS APPLICATION IN SELECTIVE SEPARATION OF POLYAROMATIC COMPOUNDS

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AZADEH A.M.; SHARIFI A.; MIRZAEI M.

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Seminar: IRANIAN CHEMISTRY CONGRESS
Year:2014 | Issue:17

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Title

RETENTION BEHAVIOR OF A NOVEL IMIDAZOLIUM BASED IONIC LIQUID AS STATIONARY PHASE FOR CAPILLARY GAS CHROMATOGRAPHY AND ITS APPLICATION IN SELECTIVE SEPARATION OF POLYAROMATIC COMPOUNDS

Author(s)

AZADEH A.M. | SHARIFI A. | MIRZAEI M. | Issue Writer Certificate

Keywords

IONIC LIQUID

GAS CHROMATOGRAPHY

STATIONARY PHASES

CAPILLARY COLUMN

Abstract

BACKGROUND: IONIC LIQUIDS (ILS) ARE NONMOLECULAR SOLVENTS [1]. IN THE FIELD OF GAS CHROMATOGRAPHY (GC), THE NECESSITY FOR NEW STATIONARY PHASES THAT PRESENT UNIQUE SEPARATION SELECTIVITY, HIGH EFFICIENCY, AND HIGH THERMAL STABILITY CAN BE PROVIDED BY ILS. THESE COMPOUNDS POSSESS MANY UNIQUE PROPERTIES THAT ALLOW THEM TO FUNCTION AS MULTIPURPOSE STATIONARY PHASES THAT EXHIBIT UNPARALLELED DUAL-NATURE RETENTION SELECTIVITY [2].CHARACTERISTICS SUCH AS NEGLIGIBLE VOLATILITY, THERMAL STABILITY AND WIDE LIQUID RANGE MAKE ILS IDEAL STATIONARY PHASES FOR CAPILLARY GAS CHROMATOGRAPHY (CGC) [3].PAH IS A COMMON TERM FOR POLYCYCLIC AROMATIC HYDROCARBONS AND REFERS TO COMPOUNDS THAT CONTAIN MORE THAN TWO UNSUBSTITUTED BENZENE RINGS. THEY HAVE ATTRACTED MUCH ATTENTION FOR MANY YEARS, BECAUSE SOME OF THEM ARE STRONG CARCINOGENS.METHODS: THE IL (FIG.1) WAS DISSOLVED IN DICHLOROMETHANE AT 3.2% (W/V) AND A FIVE METER CAPILLARY COLUMN WAS COATED BY THE STATIC METHOD. THE COATED COLUMN WAS CONDITIONED FROM 30OC TO 160OC AT 1OC/MIN AND HELD AT 160OC FOR 3H. THE COLUMN WAS EXAMINED WITH DIFFERENT MIXTURE OF COMPOUNDS (GROB TEST MIXTURE, PAHS MIXTURE, N-ALKANES, AROMATIC AMINES, ALCOHOLS MIXTURE AND TEST MIXTURE).RESULTS: IN GC, THE THERMAL STABILITY OF THE STATIONARY PHASE IS ONE OF THE MOST IMPORTANT CONSIDERATIONS, AS IT GOVERNS THE ONSET OF COLUMN BLEED AND ULTIMATELY DICTATES THE LIFETIME OF THE STATIONARY PHASE. THE NEW IONIC LIQUID HAS GOOD THERMAL STABILITY UP TO 420OC. THE IONIC LIQUID STATIONARY PHASE PROVIDED DIFFERENT RETENTION BEHAVIOR FOR MANY POLYAROMATIC COMPOUNDS, THIS DIFFERENCE IN SELECTIVITY IS DUE TO THE UNIQUE SOLVATION CHARACTERISTICS OF THE IONIC LIQUID.CONCLUSION: THE THERMAL STABILITIES OF THE GEMINAL DICATIONIC IONIC LIQUIDS ARE GREATER THAN THOSE OF MOST TRADITIONAL MONOCATIONIC IONIC LIQUIDS. THE RESULTS ALSO INDICATED THAT [C9 (2MNPTIM)2] [(NTF2)2] COLUMN POSSESSED HIGH SEPARATION FOR AROMATIC COMPOUNDS.

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APA: Copy

AZADEH, A.M., SHARIFI, A., & MIRZAEI, M.. (2014). RETENTION BEHAVIOR OF A NOVEL IMIDAZOLIUM BASED IONIC LIQUID AS STATIONARY PHASE FOR CAPILLARY GAS CHROMATOGRAPHY AND ITS APPLICATION IN SELECTIVE SEPARATION OF POLYAROMATIC COMPOUNDS. IRANIAN CHEMISTRY CONGRESS. SID. https://sid.ir/paper/912142/en

Vancouver: Copy

AZADEH A.M., SHARIFI A., MIRZAEI M.. RETENTION BEHAVIOR OF A NOVEL IMIDAZOLIUM BASED IONIC LIQUID AS STATIONARY PHASE FOR CAPILLARY GAS CHROMATOGRAPHY AND ITS APPLICATION IN SELECTIVE SEPARATION OF POLYAROMATIC COMPOUNDS. 2014. Available from: https://sid.ir/paper/912142/en

IEEE: Copy

A.M. AZADEH, A. SHARIFI, and M. MIRZAEI, “RETENTION BEHAVIOR OF A NOVEL IMIDAZOLIUM BASED IONIC LIQUID AS STATIONARY PHASE FOR CAPILLARY GAS CHROMATOGRAPHY AND ITS APPLICATION IN SELECTIVE SEPARATION OF POLYAROMATIC COMPOUNDS,” presented at the IRANIAN CHEMISTRY CONGRESS. 2014, [Online]. Available: https://sid.ir/paper/912142/en

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