A Novel Strategy for Determination of Paracetamol in the Presence of Morphine Using a Carbon Paste Electrode Modified with CdO Nanoparticles and Ionic Liquids

Abstract

A voltammetric sensor for determination of paracetamol in the presence of morphine is described for the first time. The synthesized CdO nanoparticles were characterized with different methods such as scanning electron microscopy (SEM) and X‐ray diffraction (XRD). The paracetamol and morphine peaks are separated ca. 0.37 and 0.65 V, respectively; hence paracetamol can be analysed in the presence of morphine and more than 21 times of the current excess of paracetamol. The detection limits for paracetamol and morphine were 0.07 and 0.1 μM, respectively. The sensor has been successfully applied for the assay of the above compounds in real samples.

Ordered Mesoporous Carbon/Poly (2‐Hydroxyethyl Methacrylate/Ag Nanoparticle Composite Modified Glassy Carbon Electrode; an Amplified Sensor for Simultaneous Determination of Acetaminophen and Domperidone

“…According to previously published papers and the structure of acetaminophen and domperidone , we found that the electro‐oxidation behavior of these drugs is relative to the pH of the solution; this factor is optimized in the first step. The cyclic voltammograms of 5 μM acetaminophen (Figure a 1 ) and 10 μM domperidone (Figure b 1 ) were recorded at a different pH on the surface of the GCE/AgNPs‐PHEMA‐CMK‐1.…”

A Facile Synthesis of Cd(OH)2‐rGO Nanocomposites for the Practical Electrochemical Detection of Acetaminophen

“…Furthermore, the linear regression equation for the square root of scan rate vs peak current (shown in inset) was demonstrated with the high correlation coefficient of 0.9964. To analyse the rate determining process, the slope of the tafel plot for scan rate of 20 mV s −1 was calculated of about 8.6131 V −1 decade is equal to n(1−α)F/2.3RT . Accordingly, the charge transfer coefficient value was calculated as α=0.49 from Figure S3.…”

Conducting Polymer/Ionic Liquid Composite Modified Carbon Paste Electrode for the Determination of Carbaryl in Real Samples

“…The properties of ionic liquids have been exploited in various applications ranging from energy storage and conversion to metal deposition, and they have been used in chemistry, biochemistry and even biomechanics. Recently, Ionics liquid have been attracted tremendous attention in electrochemistry due to their catalytic activity, good electrical conductivity, high sensitivity and their broad electrochemical window . They have recently been used as a new type of modifier for the fabrication of carbon‐based electrodes (CPEs) .…”