A micro gas preconcentrator with improved performance for pollution monitoring and explosives detection
This paper presents the optimization of a micro gas preconcentrator based on a micro-channel in porous and non-porous silicon filled with an adequate adsorbent. This micro gas preconcentrator is both applicable in the fields of atmospheric pollution monitoring (Volatil organic compounds—VOCs) and ex...
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| Veröffentlicht in: | Analytica chimica acta 2011-03, Vol.688 (2), p.175-182 |
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| container_title | Analytica chimica acta |
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| creator | Camara, E.H.M. Breuil, P. Briand, D. de Rooij, N.F. Pijolat, C. |
| description | This paper presents the optimization of a micro gas preconcentrator based on a micro-channel in porous and non-porous silicon filled with an adequate adsorbent. This micro gas preconcentrator is both applicable in the fields of atmospheric pollution monitoring (Volatil organic compounds—VOCs) and explosives detection (nitroaromatic compounds). Different designs of micro-devices and adsorbent materials have been investigated since these two parameters are of importance in the performances of the micro-device. The optimization of the device and its operation were driven by its future application in outdoor environments. Parameters such as the preconcentration factor, cycle time and the influence of the humidity were considered along the optimization process. As a result of this study, a preconcentrator with a total cycle time of 10
min and the use of single wall carbon nanotubes (SWCNTs) as adsorbent exhibits a good preconcentration factor for VOCs with a limited influence of the humidity. The benefits of using porous silicon to modify the gas desorption kinetics are also investigated. |
| doi_str_mv | 10.1016/j.aca.2010.12.039 |
| format | Article |
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min and the use of single wall carbon nanotubes (SWCNTs) as adsorbent exhibits a good preconcentration factor for VOCs with a limited influence of the humidity. The benefits of using porous silicon to modify the gas desorption kinetics are also investigated.</description><subject>Adsorbent</subject><subject>Adsorbents</subject><subject>Air pollution</subject><subject>Applied sciences</subject><subject>Carbon nanotubes</subject><subject>Chemical and Process Engineering</subject><subject>Cycle time</subject><subject>Engineering Sciences</subject><subject>Exact sciences and technology</subject><subject>Explosives detection</subject><subject>Gas preconcentrator</subject><subject>Global environmental pollution</subject><subject>Humidity</subject><subject>Micro-channel</subject><subject>Optimization</subject><subject>Pollution</subject><subject>Porous silicon</subject><subject>Single wall carbon nanotubes</subject><subject>Volatile organic compounds</subject><issn>0003-2670</issn><issn>1873-4324</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNqFkk2P0zAQQC0EYkvhB3BBviDg0OLPONGeqhWwSJW4wNly7UnXVRIHOy3w75nQstyWkz3282hmngl5ydmaM169P6ydd2vB5lismWwekQWvjVwpKdRjsmCMyZWoDLsiz0o5YCg4U0_JleBSKlXLBdlvaB99TnTvCh0z-DR4GKbsppTpjzjd0diPOZ0g0BFym3LvEKC4oWPquuMU00D7NETk47CnbggUfo5dKvEEhQaYwM_Mc_KkdV2BF5d1Sb59_PD15na1_fLp881mu_JaqGklatYYzYUUtXe-cZVRoZ2vWKghaKiDDtKLHeOtU8q4xrUyMFdhQ2LXaJBL8u6c9851dsyxd_mXTS7a283WzmeM6crgyE4c2TdnFhv8foQy2T4WD13nBkjHYusKR1pzbf5PaimE0E2D5NsHSW6M4ZVu0MyS8DOK4y8lQ3tfL2d29msPFv3a2a_lwmIx-ObVJf1x10O4f_FXKAKvL4Ar3nVtRl2x_ONko4z509H1mQOUcYqQbfERUG2I-AkmG1J8oIzfuQbCTw</recordid><startdate>20110304</startdate><enddate>20110304</enddate><creator>Camara, E.H.M.</creator><creator>Breuil, P.</creator><creator>Briand, D.</creator><creator>de Rooij, N.F.</creator><creator>Pijolat, C.</creator><general>Elsevier B.V</general><general>Elsevier</general><general>Elsevier Masson</general><scope>IQODW</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SU</scope><scope>7U5</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>L7M</scope><scope>7X8</scope><scope>7ST</scope><scope>7TV</scope><scope>SOI</scope><scope>1XC</scope><scope>VOOES</scope></search><sort><creationdate>20110304</creationdate><title>A micro gas preconcentrator with improved performance for pollution monitoring and explosives detection</title><author>Camara, E.H.M. ; 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| subjects | Adsorbent Adsorbents Air pollution Applied sciences Carbon nanotubes Chemical and Process Engineering Cycle time Engineering Sciences Exact sciences and technology Explosives detection Gas preconcentrator Global environmental pollution Humidity Micro-channel Optimization Pollution Porous silicon Single wall carbon nanotubes Volatile organic compounds |
| title | A micro gas preconcentrator with improved performance for pollution monitoring and explosives detection |
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