1. Development of a Chitosan/Nickel Phthalocyanine Composite Based Conductometric Micro‐sensor for Methanol Detection
- Author
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Ibrahim Musa, Guy Raffin, Marie Hangouet, Marie Martin, Albert Alcacer, Nadia Zine, Francesca Bellagambi, Nicole Jaffrezic‐Renault, Abdelhamid Errachid, Micro & Nanobiotechnologies, Institut des Sciences Analytiques (ISA), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), spectroscopies vibrationnelles, Centro Nacional de Microelectronica [Spain] (CNM), The authors acknowledge the financial support of the EU H2020 WIDESPREAD Program entitled Bionanosens grant agreement # 951887 and France Embassy of Nigeria, and Kano state government of Nigeria, through CAMPUS FRANCE under the MoU agreement KN-FR scholarship., and European Project: 951887,Bionanosens
- Subjects
[SDV]Life Sciences [q-bio] ,Electrochemistry ,[CHIM]Chemical Sciences ,Analytical Chemistry - Abstract
International audience; Thin-film composite of chitosan/nickel phthalocyanine (NiPc) was electrochemically deposited on the fingers of interdigitated gold electrodes, applying chronoamperometric polymerization technique. The presence of crystallized NiPc in the chitosan was confirmed by EDX and FTIR analysis. Acetone, ethanol, and methanol gas-sensing properties of the films prepared at optimum conditions were studied at atmospheric temperature, through differential measurements at an optimized frequency of 10 kHz, using a lock-in amplifier. The conductometric sensor presents the highest sensitivity of 60.2 μS.cm−1(v/v) for methanol and 700 ppm as the limit of detection. For validation, the methanol content of a commercial rubbing alcohol was determined.
- Published
- 2022