Amplified nanostructure electrochemical sensor for simultaneous determination of captopril, acetaminophen, tyrosine and hydrochlorothiazide

Cauliflower‐like Platinum Particles Decorated Reduced Graphene Oxide for Sensitive Determination of Acetaminophen

“…However, poor electrochemical responses of ACTM at bare working electrodes are remarkably considered as the limitation of such electrochemical sensing techniques. One strategy to improve the signal is to modify the electrodes with various functional materials including noble metal nanoparticles (NPs) [15,16], metal oxides [17,18], polymers [19,20], carbon materials [21,22], natural enzyme [23]. Among these materials, graphene (including reduced graphene oxide or RGO) and metal NPs have been subjected to intense research studies due to their unique structures and intrinsic properties.…”

Voltammetric Determination of Anti-Hypertensive Drug Hydrochlorothiazide Using Screen-Printed Electrodes Modified with L-Glutamic Acid

“…As summarized in Table 1, both LOD and LOQ were at the level of µmol L −1 , being those achieved using SPCE/EGA lower than for SPCE/PGA. Table 2 presents a comparison of the results obtained from SPCE/PGA and SPCE/EGA and those from other electrodes used in the determination of HCTZ, e.g., glassy carbon electrode [47], boron-doped diamond electrode [18], modified graphene oxide sheet paste electrode [48], or modified carbon paste electrodes [49,50]. In comparison with the summarized results, the LOD and LOQ values reached in this work for HCTZ determination are similar or even slightly lower depending on both the electrode and method considered.…”

MnO2‐TiO2 Nanocomposite and 2‐(3,4‐Dihydroxyphenethyl) Isoindoline‐1,3‐Dione as an Electrochemical Platform for the Concurrent Determination of Cysteine, Tryptophan and Uric Acid

“…Also Cys usually coexists with different electro-active compounds including Trp and UA, which might have very close or similar oxidation peak potentials, and hence cause serious interfering effects [22] and consequently the electrode materials can play important roles in electroanalytical methods [23][24][25][26] and chemical modification of electrodes can be used as a means to overcome these problems [27][28][29][30][31][32]. Various active materials, including e. g. nanocomposites, metal oxides, graphene and carbon nanotubes, and different mediators have recently been used to enhance electrodes [33][34][35][36][37][38]. As an instance, Raoof et al worked on the determination of N-acetyl-L-cysteine, uric acid and tryptophan through modifying an electrode with a homogeneous electrochemical catalyst, i. e. 4-chlorocatechol [22].…”