All Silicon Micro-GC Column Temperature Programming Using Axial Heating
In this work we present a high performance micro gas chromatograph column with a novel two dimensional axial heating technique for faster and more precise temperature programming, resulting in an improved separation performance. Three different axial resistive heater designs were simulated theoretic...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2015-07-01
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| Series: | Micromachines |
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| Online Access: | http://www.mdpi.com/2072-666X/6/7/865 |
| _version_ | 1818943617833631744 |
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| author | Milad Navaei Alireza Mahdavifar Jean-Marie D. Dimandja Gary McMurray Peter J. Hesketh |
| author_facet | Milad Navaei Alireza Mahdavifar Jean-Marie D. Dimandja Gary McMurray Peter J. Hesketh |
| author_sort | Milad Navaei |
| collection | DOAJ |
| description | In this work we present a high performance micro gas chromatograph column with a novel two dimensional axial heating technique for faster and more precise temperature programming, resulting in an improved separation performance. Three different axial resistive heater designs were simulated theoretically on a 3.0 m × 300 μm × 50 μm column for the highest temperature gradient on a 22 by 22 μm column. The best design was then micro-fabricated and evaluated experimentally. The simulation results showed that simultaneous temperature gradients in time and distance along the column are possible by geometric optimization of the heater when using forced convection. The gradients along the column continuously refocused eluting bands, offsetting part of the chromatographic band spreading. The utility of this method was further investigated for a test mixture of three hydrocarbons (hexane, octane, and decane). |
| first_indexed | 2024-12-20T07:30:11Z |
| format | Article |
| id | doaj.art-80d5fd97aeee4d1bb46599660200a97e |
| institution | Directory Open Access Journal |
| issn | 2072-666X |
| language | English |
| last_indexed | 2024-12-20T07:30:11Z |
| publishDate | 2015-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj.art-80d5fd97aeee4d1bb46599660200a97e2022-12-21T19:48:26ZengMDPI AGMicromachines2072-666X2015-07-016786587810.3390/mi6070865mi6070865All Silicon Micro-GC Column Temperature Programming Using Axial HeatingMilad Navaei0Alireza Mahdavifar1Jean-Marie D. Dimandja2Gary McMurray3Peter J. Hesketh4School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30324, USASchool of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30324, USADepartment of Chemistry, Spelman College, Atlanta, GA 30314, USAFood Processing Center, Georgia Tech Research Institute (GTRI), Atlanta, GA 30318, USASchool of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30324, USAIn this work we present a high performance micro gas chromatograph column with a novel two dimensional axial heating technique for faster and more precise temperature programming, resulting in an improved separation performance. Three different axial resistive heater designs were simulated theoretically on a 3.0 m × 300 μm × 50 μm column for the highest temperature gradient on a 22 by 22 μm column. The best design was then micro-fabricated and evaluated experimentally. The simulation results showed that simultaneous temperature gradients in time and distance along the column are possible by geometric optimization of the heater when using forced convection. The gradients along the column continuously refocused eluting bands, offsetting part of the chromatographic band spreading. The utility of this method was further investigated for a test mixture of three hydrocarbons (hexane, octane, and decane).http://www.mdpi.com/2072-666X/6/7/865gas chromatographyMEMSjoule heatingthermal gradient |
| spellingShingle | Milad Navaei Alireza Mahdavifar Jean-Marie D. Dimandja Gary McMurray Peter J. Hesketh All Silicon Micro-GC Column Temperature Programming Using Axial Heating Micromachines gas chromatography MEMS joule heating thermal gradient |
| title | All Silicon Micro-GC Column Temperature Programming Using Axial Heating |
| title_full | All Silicon Micro-GC Column Temperature Programming Using Axial Heating |
| title_fullStr | All Silicon Micro-GC Column Temperature Programming Using Axial Heating |
| title_full_unstemmed | All Silicon Micro-GC Column Temperature Programming Using Axial Heating |
| title_short | All Silicon Micro-GC Column Temperature Programming Using Axial Heating |
| title_sort | all silicon micro gc column temperature programming using axial heating |
| topic | gas chromatography MEMS joule heating thermal gradient |
| url | http://www.mdpi.com/2072-666X/6/7/865 |
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