As
an emerging porous crystalline organic material, the covalent
organic frameworks (COFs) are given more and more attention in many
fields, such as gas storage and separation, catalysis, energy storage
and conversion, luminescent devices, drug delivery, pollutant adsorption
and removal, analysis and detection due to their special advantages
of high crystallinity, flexible designability, controllable porosities
and topologies, intrinsic chemical and thermal stability. In recent
years, the COFs are applied in analytical chemistry, for instance,
chromatography, solid-phase microextraction, luminescent and colorimetric
sensing, surface-enhanced Raman scattering and electroanalytical chemistry.
The COFs decorated electrodes show high performance for detecting
trace substances with remarkable selectivity and sensitivity, such
as heavy metal ions, glucose, hydrogen peroxide, drugs, antibiotics,
explosives, phenolic compounds, pesticides, disease metabolites and
so on. This review mainly summarized the application of COF based
electrochemical sensor according to different target analytes.