Simultaneous Determination of Hydroquinone, Catechol and Resorcinol with High Selectivity Based on Hollow Nitrogen-Doped Mesoporous Carbon Spheres Decorated Graphene

Glassy Carbon Electrode Modified with C/Au Nanostructured Materials for Simultaneous Determination of Hydroquinone and Catechol in Water Matrices

“…In particular, the use of nanomaterials for the modification of electrodes has generated great interest in environmental analytical chemistry. This is because, in general, these materials can significantly improve the conductivity and electrocatalytic activity of an electrical surface for a wide range of redox reactions, in addition to having a broad potential window and low electrochemical reactivity [11][12][13].…”

“…The modification of electrodes using different nanomaterials has resulted in an improved sensitivity for the determination of organic compounds in different matrices [11][12][13] and has led to electroanalytical methodologies with detection limits at µM and even nM concentration levels [28][29][30]. Several methods have been reported for the quantitative determination of organics in water, such as gas and liquid chromatography [31,32], UV-Vis spectrophotometry [33] and fluorescence [34].…”

“…In these methods, detection limits between 0.1 and 1.0 µM have been achieved, but they exhibit some disadvantages, such as complex pre-treatment of the sample and the use of high volumes of organic solvents. In this sense, electrochemical methods have sensitivities comparable with those of spectrophotometric and chromatographic methods, can be miniaturized to perform on-site determinations of contaminants of interest, require inexpensive equipment for their implementation and enable the quantification of several analytes simultaneously in a short time [12,35,36].…”

Mesoporous Carbon and Ceria Nanoparticles Composite Modified Electrode for the Simultaneous Determination of Hydroquinone and Catechol

“…Accordingly, it is necessary to establish an efficient method for the simultaneous determination of these two isomers. Many methods have been developed for their determination, such as fluorescence [4], gas chromatography [5], high–performance liquid chromatography [6], chemiluminescence [7], and electrochemical methods [8]. In the last few years, electrochemical methods have attracted wide attention for their fast response, high sensitivity, low–cost, selectivity, and facile to use [9,10,11].…”

An Excellent Electrochemical Sensor Based on Highly Porous Gold Film Modified Gold Electrode for Detecting Quercetin in Food and Medicine

“…By contrast, because the existence of several phenolic hydroxy groups in QR molecular structure enabled QR as an electro-active substance, electrochemical technique is preferable for detecting QR, due to its extensive merits of time-saving, low cost, high sensitivity and selectivity as well as eco-friendly. [23][24][25][26][27][28][29][30][31][32][33][34] For instance, Wang et al, prepared a core-shell PPy@ZIF-8 heterostructure by using in situ growing method and applied it in constructing an electrochemical sensing platform for detecting QR. 35 Fei et al, fabricated an ultrasensitive electrochemical sensor using the nanohybrid of Au nanoparticles, reduced oxide graphene and 1-pyrenebutyrate as the sensing platform to study the electrochemical behaviors of QR.…”