Soluble phthalocyanines as coatings for quartz-microbalances:: specific and unspecific sorption of volatile organic compounds

被引：17

作者：

Fietzek, C

Bodenhöfer, K

Haisch, P

Hees, M

Hanack, M

Steinbrecher, S

Zhou, F

Plies, E

Göpel, W

机构：

[1] Univ Tubingen, Inst Phys & Theoret Chem, Ctr Interface Anal & Sensors, D-72076 Tubingen, Germany

[2] Univ Tubingen, Inst Organ Chem, D-72076 Tubingen, Germany

[3] Univ Tubingen, Inst Phys Appl, D-72076 Tubingen, Germany

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 1999年 / 57卷 / 1-3期

关键词：

QMB; soluble phthalocyanines; VOC detection; dual sorption mode; sorption enthalpy;

D O I：

10.1016/S0925-4005(99)00167-7

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Various new phthalocyanines (PcMs) species were synthesized which can be dissolved in organic solvents. They turned out to form particularly sensitive coatings on quartz-microbalances (QMBs) for the detection of a variety of volatile organic compounds (VOCs) in the gas phase. A two-step sorption model describes both, the initial highly sensitive response at low concentrations by preferential absorption and the less sensitive response at high concentrations by non-preferential absorption for different analyte/PcM combinations. The thermodynamic evaluation allows to determine the heats of specific interactions from temperature dependent sorption isotherms. (C) 1999 Elsevier Science S.A. All rights reserved.

引用

页码：88 / 98

页数：11

共 19 条

[1] Synthesis and test of organometallic materials as sensitive layers on quartz microbalance devices [J].