Implementation of a plasticized PVC-based cation-selective optode system into a paper-based analytical device for colorimetric sodium detection.


On the example of a colorimetric sodium assay, this work demonstrates the implementation of a classical cation-exchange optode relying on an ionophore-doped plasticized PVC membrane into a paper-based analytical device (PAD). An ion-selective optode (ISO) system has been arranged into a vertically-assembled PAD (vPAD) integrating a pH-buffering function… (More)
DOI: 10.1039/c7an01952a