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    Voltammetric determination of organophosphorus pesticides using a hairpin aptamer immobilized in a graphene oxide-chitosan composite

    An aptasensor is described for electrochemical determination of organophosphorus pesticides (OPPs), specifically of profenofos, phorate, isocarbophos, and omethoate. The method uses a hairpin aptamer as signal...

    Jiayun Fu, Yao Yao, **ngshuang An, Guangxian Wang, Yemin Guo, **a Sun… in Microchimica Acta (2019)