HCl gas monitoring based on a QCM using morpholine-functional styrene-co-chloromethylstyrene copolymer coatings

被引：27

作者：

Matsuguchi, Masanobu ^{[1
]}

Kadowaki, Yoshito

Noda, Kazutoshi

Naganawa, Ryuichi

机构：

[1] Ehime Univ, Dept Appl Chem, Matsuyama, Ehime 7908577, Japan

[2] Natl Inst Adv Ind Sci & Technol, Inst Environm Management Technol, Tsukuba, Ibaraki 3058569, Japan

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2007年 / 120卷 / 02期

关键词：

HCl monitoring; gas sensor; QCM; cross-linked morpholine-functional copolymer;

D O I：

10.1016/j.snb.2006.02.039

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Quartz resonators coated with various compositions of poly(styrene-co-chloromethyl styrene) reacted with morpholine as adsorption sites were fabricated for simply but accurately monitoring HCl gas in air. The exposure of all resonators to HCl gas irreversibly decreased the oscillation frequencies, indicating that these devices can be used for one-shot detection of HCl gas. The chemical structure and composition of the copolymer affected the sensitivity. The largest sensitivity was obtained for the copolymer having 40.0 mol% CMSt composition cross-linked with 5.0 mol% DVB. The sensitivity was 0.1 ppm/Hz for 10-min sensor operation, demonstrating a ppm level of HCl detection, although great interference was produced by changes in the humidity. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：462 / 466

页数：5

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