Sensitivity of the electrical admittance of a polysiloxane film to organic vapours

被引：22

作者：

Casalini, R

Kilitziraki, M

Wood, D

Petty, MC

机构：

[1] Univ Durham, Ctr Mol Elect, Durham DH1 3LE, England

[2] Univ Durham, Sch Engn, Durham DH1 3LE, England

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 1999年 / 56卷 / 1-2期

关键词：

gas sensors; admittance spectroscopy; polymers; polysiloxanes;

D O I：

10.1016/S0925-4005(99)00039-8

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The sensitivity of polycyanopropylmethylsiloxane films to organic vapours has been investigated using electrical admittance spectroscopy. The films were exposed to benzene, ethanol and acetonitrile. In all cases, a reversible change in the capacitance and conductance of the polymeric film was observed. An analysis of the changes induced by the different vapours suggests that, with a judicious choice of measurement frequencies, conductance and capacitance data could provide an useful basis for a selective sensing system. (C) 1999 Elsevier Science S.A. All rights reserved.

引用

页码：37 / 44

页数：8

共 20 条

[1] The effect of organic vapours on the permittivity of a co-ordination polymer Langmuir-Blodgett film
Casalini, R
Nagel, J
Oertel, U
Petty, MC
[J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1998, 31 (21) : 3146 - 3153
[2] CORNILA C, 1995, SENSOR ACTUAT B-CHEM, V24, P357
[3] DICKERT FL, 1993, BER BUNSEN PHYS CHEM, V97, P184
[4] OPTIMIZATION OF THE GEOMETRY OF GAS-SENSITIVE INTERDIGITAL CAPACITORS
ENDRES, HE
DROST, S
[J]. SENSORS AND ACTUATORS B-CHEMICAL, 1991, 4 (1-2) : 95 - 98
[5] Time domain dielectric spectroscopy: An advanced measuring system
Feldman, Y
Andrianov, A
Polygalov, E
Ermolina, I
Romanychev, G
Zuev, Y
Milgotin, B
[J]. REVIEW OF SCIENTIFIC INSTRUMENTS, 1996, 67 (09) : 3208 - 3216
[6] SOLUBILITY INTERACTIONS AND THE DESIGN OF CHEMICALLY SELECTIVE SORBENT COATINGS FOR CHEMICAL SENSORS AND ARRAYS
GRATE, JW
ABRAHAM, MH
[J]. SENSORS AND ACTUATORS B-CHEMICAL, 1991, 3 (02) : 85 - 111
[7] HASTED JB, 1973, AQUEOUS DIELECTRICS, pCH5
[8] CONTROLLED SELECTIVITY OF POLYSILOXANE COATINGS - THEIR USE IN CAPACITANCE SENSORS
HAUG, M
SCHIERBAUM, KD
ENDRES, HE
DROST, S
GOPEL, W
[J]. SENSORS AND ACTUATORS A-PHYSICAL, 1992, 32 (1-3) : 326 - 332
[9] CHEMICAL SENSORS BASED UPON POLYSILOXANES - COMPARISON BETWEEN OPTICAL, QUARTZ MICROBALANCE, CALORIMETRIC, AND CAPACITANCE SENSORS
HAUG, M
SCHIERBAUM, KD
GAUGLITZ, G
GOPEL, W
[J]. SENSORS AND ACTUATORS B-CHEMICAL, 1993, 11 (1-3) : 383 - 391
[10] Havriliak S., 1966, J POLYMER SCI C, V14, P99, DOI [DOI 10.1002/POLC.5070140111, 10.1002/polc.5070140111]

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