Model-based optimal design of polymer-coated chemical sensors

被引:21
作者
Phillips, C
Jakusch, M
Steiner, H
Mizaikoff, B
Fedorov, AG [1 ]
机构
[1] Georgia Inst Technol, GW Woodruff Sch Mech Engn, Atlanta, GA 30332 USA
[2] Vienna Univ Technol, Inst Chem Technol & Analyt, A-1040 Vienna, Austria
[3] Georgia Inst Technol, Sch Chem & Biochem, Atlanta, GA 30332 USA
关键词
D O I
10.1021/ac020471z
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
A model-based methodology for optimal design of polymercoated chemical sensors is developed and is illustrated for the example of infrared evanescent field chemical sensors. The methodology is based on rigorous and computationally efficient modeling of combined fluid mechanics and mass transfer, including transport of multiple analytes. A simple algebraic equation for the optimal size of the sensor flow cell is developed to guide sensor design and validated by extensive CFD simulations. Based upon these calculations, optimized geometries of the sensor flow cell are proposed to further improve the response time of chemical sensors.
引用
收藏
页码:1106 / 1115
页数:10
相关论文
共 18 条
[1]   Optimization of an integrated SnO2 gas sensor using a FEM simulator [J].
Astie, S ;
Gue, AM ;
Scheid, E ;
Lescouzeres, L ;
Cassagnes, A .
SENSORS AND ACTUATORS A-PHYSICAL, 1998, 69 (03) :205-211
[2]   Evanescent fiber optic chemical sensor for monitoring volatile organic compounds in water [J].
Blair, DS ;
Burgess, LW ;
Brodsky, AM .
ANALYTICAL CHEMISTRY, 1997, 69 (13) :2238-2246
[3]   Modelling and experimental study of the transient behaviour of plant tissue sensors in sensing dopamine [J].
Chen, Y ;
Tan, TC .
CHEMICAL ENGINEERING SCIENCE, 1996, 51 (07) :1027-1042
[4]  
*FLUENT INC, FLUENT CFD SOFTW
[5]  
HARRICK NJ, 1967, INTERNAL REFLECTANCE
[6]   DETERMINATION OF ORGANIC-COMPOUNDS BY IR/ATR SPECTROSCOPY WITH POLYMER-COATED INTERNAL-REFLECTION ELEMENTS [J].
HEINRICH, P ;
WYZGOL, R ;
SCHRADER, B ;
HATZILAZARU, A ;
LUBBERS, DW .
APPLIED SPECTROSCOPY, 1990, 44 (10) :1641-1646
[7]  
HELSTERN U, 1995, J MOL STRUCT, V349, P329
[8]  
JAKUSCH M, 2000, THESIS VIENNA U TECH, P187
[9]   Review article number 50 - The Maxwell-Stefan approach to mass transfer [J].
Krishna, R ;
Wesselingh, JA .
CHEMICAL ENGINEERING SCIENCE, 1997, 52 (06) :861-911
[10]   FIBER OPTIC SENSOR FOR CHLORINATED HYDROCARBONS IN WATER-BASED ON INFRARED FIBERS AND TUNABLE DIODE-LASERS [J].
KRSKA, R ;
KELLNER, R ;
SCHIESSL, U ;
TACKE, M ;
KATZIR, A .
APPLIED PHYSICS LETTERS, 1993, 63 (14) :1868-1870