Gas Phase Sensors for Bases Using Rhodamine B in Nafion Films

被引：10

作者：

Hwang, Eunhae ^{[1
]}

Levitsky, Igor A. ^{[1
]}

Euler, William B. ^{[1
]}

机构：

[1] Univ Rhode Isl, Dept Chem, Kingston, RI 02881 USA

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 2010年 / 116卷 / 04期

基金：

美国国家科学基金会;

关键词：

Nafion; Rhodamine B; sensors; FTIR; UV-vis spectroscopy; CHEMICAL SENSORS; CONJUGATED POLYMER; ORGANIC AMINES; WATER; MEMBRANES; DYES; EQUILIBRIA; SPECTROSCOPY; SOLUBILITY; ABSORPTION;

D O I：

10.1002/app.31830

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A sensor and dosimeter specific to inorganic and organic amine bases composed of Rhodamine B dissolved in Nafion is prepared and evaluated. UV-vis, emission, and IR spectroscopies are used to monitor the presence of a variety of analytes, including aliphatic and aromatic amines. The Rhodamine B serves as a visual indicator of the presence of an analyte by turning from brown to pink upon exposure to aliphatic amines after sufficient exposure, thus acting as a visual monitor. The Rhodamine B also acts as a fluorescent sensor, which turns oil upon exposure to the analyte. The sulfonic acid groups in the Nafion protonate the bases, giving unique signatures in the IR spectra allowing for differentiation of the bases. (C) 2010 Wiley Periodicals, Inc. J Appl Polym Sci 116: 2425-2432, 2010

引用

页码：2425 / 2432

页数：8

共 47 条

[1] Properties of confined and sheared rhodamine B films studied by SFA-FECO spectroscopy [J].