Colorimetric Detection of Hydrogen Sulfide in Ambient Air

Proceedings

Pannek, Carolin¹  Tarantik, Karina R.²  Engel, Laura³  Wöllenstein, Jürgen⁴ 

[1] Author to whom correspondence should be addressed.;Department of Microsystems Engineering—IMTEK, University of Freiburg, 79110 Freiburg, Germany;Fraunhofer Institute for Physical Measurement Techniques IPM, 79110 Freiburg, Germany;Presented at the Eurosensors 2018 Conference, Graz, Austria, 9–12 September 2018.

关键词: colorimetric sensors;    hydrogen sulfide detection;    Cu-PAN complex;    screen printing;   

DOI  :  10.3390/proceedings2130804

学科分类：社会科学、人文和艺术（综合）

来源: mdpi

【 摘 要 】

We present a fast method to monitor hydrogen sulfide (H2S) in ambient air based on a visible color change. Therefore, an immobilized copper(II) complex of the azo dye 1-(2-pyridylazo)-2-naphtol (H-PAN) was synthesized and prepared in a matrix for screen printing. Different materials, reaching from opaque paper to transparent foils served as substrate. The reaction of the copper(II) complex (Cu-PAN) to the target gas H2S was measured in reflection via UV/VIS spectroscopy.

【 授权许可】

CC BY