A sensitive, fast and low-cost molecular imprinted polymeric sensor for quantitative determination of parathion was prepared with chitosan(CS) as function matrix and parathion(PT) as template molecule via constant...A sensitive, fast and low-cost molecular imprinted polymeric sensor for quantitative determination of parathion was prepared with chitosan(CS) as function matrix and parathion(PT) as template molecule via constant potential electrochemical deposition. Sensitive response was obtained with a detection limit of 1.0× 10-7 mol/L and an excellent recognition for PT was achieved due to the good memory capacity of the sensor. The developed sensor exhibited good fabrication reproducibility and acceptable stability, which provided a new promising tool for pesticide analysis.展开更多
By exchanging the conventional role of functional monomer and template molecules,we develop a new molecu-larly imprinted nanospheres with grape grain structures based on multi-hydrogen bonding interactions between mel...By exchanging the conventional role of functional monomer and template molecules,we develop a new molecu-larly imprinted nanospheres with grape grain structures based on multi-hydrogen bonding interactions between melamine and 6-aminouracil.Molecular imprinting-electrochemical sensor was established with the assistance of graphene and ionic liquids.The content of melamine in dairy products was detected by the molecular imprinting-electrochemical sensor.The detection limit was determined to be as low as 1.57×10^(−3) mg kg^(-1).展开更多
基金Supported by the National Natural Science Foundation of China(Nos20575023, 20955001)the Key Project of International Cooperation Foundation of Fujian Province, China(No2006I0021)the Natural Science Foundation of Fujian Province, China(NosD0710017, D0810016 and U0850008)
文摘A sensitive, fast and low-cost molecular imprinted polymeric sensor for quantitative determination of parathion was prepared with chitosan(CS) as function matrix and parathion(PT) as template molecule via constant potential electrochemical deposition. Sensitive response was obtained with a detection limit of 1.0× 10-7 mol/L and an excellent recognition for PT was achieved due to the good memory capacity of the sensor. The developed sensor exhibited good fabrication reproducibility and acceptable stability, which provided a new promising tool for pesticide analysis.
基金J.H.gratefully acknowledges support of this work by the Na-tional Natural Science Foundation of China(Grant Nos.22032003&22072073)the Natural Science Foundation of Shandong Province(ZR2018ZA0547).
文摘By exchanging the conventional role of functional monomer and template molecules,we develop a new molecu-larly imprinted nanospheres with grape grain structures based on multi-hydrogen bonding interactions between melamine and 6-aminouracil.Molecular imprinting-electrochemical sensor was established with the assistance of graphene and ionic liquids.The content of melamine in dairy products was detected by the molecular imprinting-electrochemical sensor.The detection limit was determined to be as low as 1.57×10^(−3) mg kg^(-1).