SYNTHESIS OF MESOPOROUS SILICA MICROSPHERES AND ITS APPLICATION FORREVERSED-PHASE HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY

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Tabar Heydar Kourosh; Din Mohammad Pour Zeinab; AFSHARPOUR MARYAM

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Journal: Journal of Applied Research in Chemistry Year:2018 | Volume:12 | Issue:1 Page(s): 39-50

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Title

SYNTHESIS OF MESOPOROUS SILICA MICROSPHERES AND ITS APPLICATION FORREVERSED-PHASE HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY

Author(s)

Tabar Heydar Kourosh | Din Mohammad Pour Zeinab | AFSHARPOUR MARYAM | Issue Writer Certificate

Keywords

MESOPOROUS SILICAQ1

SPHERICALQ1

HPLCQ1

REVERSED-PHASEQ1

Abstract

Silica is the most used support for high-performance liquid chromatography columns. MESOPOROUS SILICA has attracted much attention due to its properties. Columns with SPHERICAL shapedMESOPOROUS SILICA particles are superior for chromatographic applications because they providehigher efficiency and lower back-pressure compared to irregular particles. In this work, mesoporoussilica microspheres were prepared via a two-step synthesis process by using tetraethyl orthosilicate, amphiphilic triblock copolymer, cetyltrimethylammonium bromide, and ethanol. To obtain mesoporoussilica spheres with mean particle size about 5. 5 μ m (obtained by scanning electron microscopy), specific surface area about 670 m2/g and pore diameter about 7 nm (obtained by N2 adsorptiondesorption), parameters of synthesis were optimized. After surface functionalization with C18 (about21% C, obtained by elemental analysis), they were slurry packed into a column (25 cm × 4. 0 mm i. d. )and used for separation of alkylbenzenes containing 1-5 carbons, polycyclic aromatic hydrocarbons, and pyridine derivatives mixtures. Phenol and pyridine mixture were used for investigation of activesilanols. The synthesized C18-modified MESOPOROUS SILICA microspheres showed good, repeatable andstable results for separation of above compounds. Among them, the highest efficiency of the column isfor benzene with 1484 theoretical plates. Resolutions of copmounds are between 1 and 4. According totailing factors, peaks are almost symmetric, except pyridine derivatives that show a little tailing.

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APA: Copy

Tabar Heydar, Kourosh, Din Mohammad Pour, Zeinab, & AFSHARPOUR, MARYAM. (2018). SYNTHESIS OF MESOPOROUS SILICA MICROSPHERES AND ITS APPLICATION FORREVERSED-PHASE HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY. JOURNAL OF APPLIED RESEARCHES IN CHEMISTRY (JARC), 12(1 ), 39-50. SID. https://sid.ir/paper/180106/en

Vancouver: Copy

Tabar Heydar Kourosh, Din Mohammad Pour Zeinab, AFSHARPOUR MARYAM. SYNTHESIS OF MESOPOROUS SILICA MICROSPHERES AND ITS APPLICATION FORREVERSED-PHASE HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY. JOURNAL OF APPLIED RESEARCHES IN CHEMISTRY (JARC)[Internet]. 2018;12(1 ):39-50. Available from: https://sid.ir/paper/180106/en

IEEE: Copy

Kourosh Tabar Heydar, Zeinab Din Mohammad Pour, and MARYAM AFSHARPOUR, “SYNTHESIS OF MESOPOROUS SILICA MICROSPHERES AND ITS APPLICATION FORREVERSED-PHASE HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY,” JOURNAL OF APPLIED RESEARCHES IN CHEMISTRY (JARC), vol. 12, no. 1 , pp. 39–50, 2018, [Online]. Available: https://sid.ir/paper/180106/en

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