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M. Soltani-Shahrivar, N. Karimian, H. Fakhri, A. Hajian, A. Afkhami, H. Bagheri:
"Design and Application of a Non-enzymatic Sensor Based on Metal-organic Frameworks for the Simultaneous Determination of Carbofuran and Carbaryl in Fruits and Vegetables";
Electroanalysis, 31 (2019), 2455 - 2465.

A novel, stable and sensitive non-enzymatic
sensor was developed with metal-organic frameworks
(MOFs) that have attracted great attention in electrochemical
sensors applications in recent years. The pore
structures of MIL (Fe)-101 and MIL (Fe)-53 are the
families of MOFs that were constructed via a simple
solvothermal procedure. The 35MIL-101(Fe)-reduced
graphene oxide nanocomposite has been used for modification
of glassy carbon electrode for the determination
of carbofuran (CBF) and carbaryl (CBR). The porosity of
the composites increased the voltammetric responses
significantly for CBF and CBR in a mixed solution that
makes the simultaneous determination of both carbamate
pesticides possible. Characterization of MIL (Fe)-101 and
MIL (Fe)-53 were performed with FT-IR, XRD, BET and
SEM. Finally, the introduced sensor under the optimal
conditions showed low detection limits of 1.2 and 0.5 nM
within the linear ranges of 5.0-200.0 nM and 1.0-300.0 nM
for CBF and CBR, respectively. The non-enzymatic
sensor was successfully used to monitoring of carbamates
residue in vegetable and fruit samples.

http://dx.doi.org/10.1002/elan.201900363