Semiquantitative visual detection of lead ions with a smartphone via a colorimetric paper-based analytical device

H Wang, L Yang, S Chu, B Liu, Q Zhang, L Zou… - Analytical …, 2019 - ACS Publications
A simple, instrument-free, paper-based analytical device with dual-emission carbon dots
(CDs)(blue CDs and red CDs) was developed for the semiquantitative, visual, and sensitive …