Chin. J. Org. Chem. ›› 2017, Vol. 37 ›› Issue (1): 92-96.DOI: 10.6023/cjoc201607034 Previous Articles     Next Articles



周婵, 邱波, 曾毅, 陈金平, 于天君, 李嫕   

  1. 中国科学院理化技术研究所 光化学转换与功能材料重点实验室 北京 100190
  • 收稿日期:2016-07-20 修回日期:2016-10-08 发布日期:2016-10-18
  • 通讯作者: 曾毅, 李嫕;
  • 基金资助:

    国家自然科学基金(No. 21233011)和国家重点基础研究发展计划(973计划,Nos. 2013CB834703,2013CB834505)资助项目.

A Reaction-Based Chemsensor for Hydrogen Sulfide Detection with Fluorescence Enhancement

Zhou Chan, Qiu Bo, Zeng Yi, Chen Jinping, Yu Tianjun, Li Yi   

  1. Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190
  • Received:2016-07-20 Revised:2016-10-08 Published:2016-10-18
  • Supported by:

    Project supported by the the National Natural Science Foundation of China(No. 21233011) and the State Key Development Program for Basic Research of China(973 Program, Nos. 2013CB834703, 2013CB834505).

A reaction-based probe 8-(2,4-dinitrophenoxy) pyrene-1-carbaldehyde(PCNP) for H2S detection was designed and synthesized by utilizing 8-hydroxypyrene-1-carbaldehyde and dinitrophenyl ether as the reporting chromophore and the recognition unit,respectively.The probe was dissolved in phosphate buffer saline(PBS) with cetyltrimethyl ammonium bromide(CTAB),and the sensing ability toward H2S was investigated with steady-state spectroscopy.The emission of PCNP was quenched by photoinduced electron transfer without H2S.The fluorescence of PCNP was boosted after thiolysis reaction in the presence of H2S,showing orange red emission.The fluorescence response was rapid and reached a maximum enhancement of about 260 times in the presence of 0.1 mmol·L-1 H2S,giving a reaction rate constant of 0.20 min-1.The limit of detection of PCNP is estimated to be 0.10 μmol·L-1.The results demonstrate that PCNP is capable of detecting H2S rapidly,sensitively and selectively.