Acidified paper substrates for microfluidic solution sampling integrated with potentiometric sensors for determination of heavy metals

• Main Authors: Ding, Ruiyu, Cheong, Yi Heng, Zhao, Ke, Lisak, Grzegorz
• Other Authors: School of Civil and Environmental Engineering
• Format: Article
• Language: English
• Published: 2022
• Subjects: Engineering::Environmental engineering; Potentiometric Ion Sensing; Acidification of Paper
• Online Access: https://hdl.handle.net/10356/160778
• Institution: Nanyang Technological University

To address analysis of heavy metals in samples containing low volumes and/or high solid-to-liquid contents, microfluidic paper-based solution sampling coupled with Pb2+-ISEs was investigated. The acidification of paper substrates prior to their use was found effective at eliminating the otherwise ob...