作者: Xiaojun Zou , Fang Shang , Sui Wang
DOI: 10.1016/J.SAA.2016.10.037
关键词:
摘要: Abstract In this paper, a novel electrochemiluminescence (ECL) sensor of sol-gel@graphene luminescent composite film modified electrode for hyperin determination was prepared using graphene (G) as solid-phase microextraction (SPME) material, based on selective preconcentration target onto an and followed by luminol ECL detection. Hyperin firstly extracted from aqueous solution through the GCE. Hydrogel, electrogenerated chemiluminescence reagents, pH working solution, extraction time temperature scan rate were discussed. Under optimum conditions, change intensity in proportion to concentration range 0.02–0.24 μg/mL with detection limit 0.01 μg/mL. This method showed good performance stability, reproducibility precision hyperin.