Screen printed carbon electrode modified with a copper@porous silicon nanocomposite for voltammetric sensing of clonazepam

Synthesis and Introducing Au-Cu Alloy Nanoparticles/Porous Silicon as a Novel Modifier of Screen Printed Carbon Electrode in Simultaneous Electrocatalytic Detection of Codeine and Acetaminophen

“…Synthesis of Au-CuNPs@PSi nanocomposite.-First, porous silicon (PSi) powder was synthesized by the procedure of chemical etching according to our earlier report. 12 Briefly, about 2.0 g of Sipowder (with an average particle size of 40.0 μm) was dispersed in an etching solution containing 90.0 ml H 2 O, 2.0 ml nitric acid 70.0% and 8.0 ml HF 48.0%. This solution was stirred for 30.0 min.…”

Interpol Review of Drug Analysis 2019-2022

“…2019 electrochemical sensor for the determination of clonazepam [ 500 ]; electrochemical sensor for the determination of five benzodiazepines (clonazepam, diazepam, alprazolam, chiordiazepoxide, oxazepam) with poly dopamine-poly folic acid (P(DA-FA)) nanocomposite modified glassy carbon electrode (P(DA-FA)-GCE) [ 501 ]; HPLC method for the simultaneous determination of three benzodiazepines [ 502 ]; Air-assisted liquid-liquid microextraction (AALLME) as an extraction method for three benzodiazepines (chlordiazepoxide, alprazolam, and lorazepam) followed by HPLC-UV for separation and determination [ 503 ]; simultaneous detection of a ternary mixture of the benzodiazepines diazepam, lorazepam, and flunitrazepam using an array of voltammetric sensors [ 504 ]; review of electrochemical-based approaches for the determination of the benzodiazepine class of drugs [ 505 ]; synthesis of flubromazepam positional isomers for forensic analysis [ 506 ]; analytical properties (LC-QTOF-MS, GC-MS and NMR) of the designer benzodiazepine 8-chloro-6-(2-fluorophenyl)-1-methyl-4H- [1,2,4]triazolo[4,3-a] [1,4]benzodiazepine (flualprazolam) seized in an anesthesia robbery case [ 507 ]; review provides a summary of sample preparation techniques (solid-phase extraction and Liquid-liquid phase extraction) and the methods for the detection and quantification of BZDs molecules [ 508 ]; liquid-chromatography high-resolution mass spectrometry method for the detection of 15 non-FDA approved BZDs [ 509 ]; 2020 spectrophotometric-reverse flow injection analysis (rFIA) method for the determination of Nitrazepam in pure and pharmaceutical preparations [ 510 ]; RP-HPLC method for the simultaneous determination of Clonazepam and metronidazole in pharmaceutical tablets [ 511 ]; microsolid-phase extraction for the preconcentration of Nitrazepam and Oxazepam before HPLC-DAD analysis [ 512 ]; FTIR and Raman spectroscopy method supported by Differential Scanning Calorimetry (DSC) for the screening and detection of benzodiazepine [ 513 ]; TD-DART-MS for the rapid and sensitive detection of a suite of 19 benzodiazepines [ 514 ]; sensor for detecting nitro-containing BZDs in beverages at DFSA crime scenes [ 515 ]; batch and cloud point extraction kinetic spectrophotometric method for determination of Nitrazepam and Clonazepam in pharmaceutical preparations [ 516 ]; MALDI-TOF-MS methodology for the quick and qualitative detection of benzodiazepines [ 517 ]; supercritical fluid chromatography coupled with tandem mass spectrometry method for the analysis of 140 chiral and non-chiral chemicals of emerging concern in environmental samples including benzodiazepines [ 518 ]; pipette-tip micro-solid phase extraction (PT-mu SPE) with corona discharge ionization-IMS (CD-IMS) for on-site fast detection of benzodiazepines in dietary supplements [ 519 ]; electrochemical sensor for measuring lorazepam in various matrices [ ...…”

Electrochemical Sensing of 1-hydroxypyrene on a Colloidal Gold Modified Zeolitic Imidazolate Frameworks-67/Carbon Nanofiber Paste Electrode

“…[15][16][17] In recent years, electrochemical methods have captured increasing attention due to its strengths of simple operation, inexpensive, high sensitivity and good selectivity. [18][19][20] In order to enhance the electrochemical response of the sensor, the nano-materials with special properties are synthesized for the construction of the sensor. [21][22][23] The carbon nanofibers (CNFs) have recently attracted much attention in electrochemistry due to their excellent electrical conductivity, 24,25 large surface areas 26,27 and good mechanical strength.…”