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A core–shell metal–organic framework (MOF) based electrochemical sensor (Ag/ZIF-8@ZIF-67) capable of detecting 2,6-DCNP is prepared, with a broad linear response range ( R 2 = 0.992) from 240 nM to 288 μM and a low detection limit of 20 nM.
Xiao et al. (Sun,) studied this question.