| Title: | Sodium-Polyacrylate-Based Electrochemical Sensors for Highly Sensitive Detection of Gaseous Phenol at Room Temperature |
| Author(s): | Romih T; Menart E; Jovanovski V; Jeric A; Andrensek S; Hocevar SB; |
| DOI: | 10.1021/acssensors.0c00973 |
| ISSN/ISBN: | 2379-3694 (Electronic) 2379-3694 (Linking) |
| Abstract: | "The detection of volatile organic compounds with electrochemical gas sensors is still very challenging regarding their sensitivity, selectivity, and operation at room temperature. There is a need for robust, sensitive, inexpensive, and yet easy-to-operate sensors for phenol and other phenolic compounds that function reliably under ambient conditions. Herein, we present a phenol gas sensor based on a combination of a semisolid, alkaline sodium polyacrylate, and commercial screen-printed electrodes. Sodium polyacrylate was employed as a multifunctional sensing material serving as a (i) gel-like electrolyte, (ii) accumulation milieu, and (iii) derivatization medium. Under ambient conditions, the sensor showed excellent sensitivity in the low ppbv (mug m(-3)) range, a good linear operation in the examined concentration range of 0.1-1.0 ppmv for up to 105 min accumulation, and low sensitivity toward examined interferences. The sensor also indicated a possibility to differentiate between several phenolic compounds based on their oxidation potential. Given its favorable electroanalytical performance, a strong application potential is envisioned in topical fields such as environmental monitoring, cultural heritage preservation, and occupational health and safety" |
| Keywords: | Acrylic Resins *Gases *Phenol Phenols Sodium Temperature ambient conditions cultural heritage preservation electrochemical gas sensor occupational health and safety phenol phenolic compounds; |
| Notes: | "MedlineRomih, Tea Menart, Eva Jovanovski, Vasko Jeric, Andrej Andrensek, Samo Hocevar, Samo B eng 2020/07/01 ACS Sens. 2020 Aug 28; 5(8):2570-2577. doi: 10.1021/acssensors.0c00973. Epub 2020 Jul 10" |
