• 文献标题:   CdS QDs Amplified Electrochemiluminescence of N,S Co-doped Graphene Quantum Dots and Its Application for Pb(II) Determination
  • 文献类型:   Article
  • 作  者:   WANG ML, SUN YA, YANG ML
  • 作者关键词:   n s codoped gqd, cds qd, ecl
  • 出版物名称:   CHEMISTRY LETTERS
  • ISSN:   0366-7022 EI 1348-0715
  • 通讯作者地址:   Shanghai Normal Univ
  • 被引频次:   5
  • DOI:   10.1246/cl.170846
  • 出版年:   2018

▎ 摘  要

An electrochemiluminescence (ECL) system based on cadmium sulfide quantum dots (CdS QDs) amplified the ECL of nitrogen and sulfur co-doped graphene quantum dots (N,S:GQDs) was established and applied for lead ion (Pb2+) determination. The anodic ECL signal of N,S: GQDs was enhanced greatly by CdS QDs; furthermore, the enhanced ECL signal could be quenched by Pb2+. Based on the quenching effect, a simple method for the selective ECL determination of Pb2+ was proposed.