Sensitive determination of 4,6-dinitro-o-cresol based on a glassy carbon electrode modified with Zr-UiO-66 metal–organic framework entrapped FMWCNTs

Abstract

A DNOC electrochemical sensor has been developed by using a composite of Zr-UiO-66 and FMWCNTs on a glassy carbon electrode (GCE) and using the differential pulse voltammetry technique.

Synthesis of Zinc Oxide Nanoparticles Based on Coffee Husks Embedded on Mesoporous Silica for the Sensing of Acetaminophen

“…A limit of detection (LOD) of 0.11 μM is obtained by using the formula 3 Sb/m, where Sb represents the error on the blank and m the slope of the calibration curve. [65,66] The comparison of the LOD obtained in this work with other reported works are shown in Table 5, where it can be seen that the sensor elaborated in this work is well competitive.…”

“…The selectivity of the proposed sensor may therefore be improved by introducing some material like multiwalled carbon nanotube, reduced graphene oxide, polyaniline, and metal organic frameworks, which have good electrocatalytic effect. [65][66][75][76][77] To investigate the reproducibility of the sensor, a series of five modified electrodes were prepared with same procedure and used for the sensing of ACT as show by Figure SI-4A. The value of relative standard deviation (RSD %) was calculated and found to be 5.1 % which indicates good reproducibility of the proposed sensor.…”