High fluorescence S, N co-doped carbon dots as an ultra-sensitive fluorescent probe for the determination of uric acid.

本文设计了一种硫、氮共掺杂碳点（S, N co-doped C-dots）作为高选择性尿酸（UA）荧光探针。采用水热法以柠檬酸为碳源、硫脲为硫氮源制备碳点，其荧光量子产率达73.1%，粒径约4.0–6.0 nm，表面富含-OH、-NH2和C-S等还原基团，并具有良好的耐酸、耐碱、耐盐、光稳定及抗光漂白性能。研究发现，H2O2与Fe2...