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Beyond Extinction Efficiencies to Molar Extinction Coefficient of Silver Nanoparticles
AbstractSilver nanoparticles have garnered substantial attention across various fields owing to their distinctive optical properties, prominently...
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Extraction, separation, recovery, transportation, ICP-AES trace determination of thorium(IV) with calix[4]resorcinarene-2, 8, 14, 20-tetrakis [N-phenylbenzo]-hydroxamic acid
A novel method for extraction, separation, and trace determination of thorium(IV) with calix[4]resorcinarene-2, 8, 14,...
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Spectrophotometric quantification of amitriptyline hydrochloride in pharmaceutical tablets: method development and validation
The development and validation of two uncomplicated, selective, and non-extraction-based visible spectrophotometric methods was carried out for the...
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Polynomial Equations based on Bouguer–Lambert and Beer Laws for Deviations from Linearity and Absorption Flattening
AbstractPolynomial through the origin equations based on the Bouguer—Lambert and Beer laws were proposed for the accurate representation of positive...
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Determination of Azithromycin Used in the Treatment Protocol of COVID-19 Based on Spectrophotometric Reactions: A Review
Azithromycin (AZM) drug is one of the most popular antibiotics and was extensively prescribed to treat patients during the first wave of COVID-19...
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Molar absorptivities of U(VI), U(IV), and Pu(III) in nitric acid solutions of various concentrations relevant to develo** nuclear fuel recycling flowsheets
A number of inconsistencies in the literature was revealed while develo** on-line spectrophotometric monitoring tools for determining aqueous phase...
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Physico-analytical studies on some heterocyclic azo dyes and their metal complexes with some transition metals
In this investigation, the azo dyes; 2-(3′-phenyl-5′-pyrazolyl azo) schaffer acid (la) and 2-(3′-phenyl-5′-pyrazolyl azo) resorcinol (Ib); were...
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Application of Thiazole Yellow G Chromogenic Dye for Spectrophotometric Determination of Some Valuable Elements in Diversified Rock Types
AbstractAn accurate and sensitive spectrophotometric method is proposed for the rapid determination of uranium and thorium using Thiazole Yellow G...
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Spectrophotometric determination of cobalt ions in water using bimetallic chemosensor based on sulfa drug azo dye
A spectrophotometric technique has been developed for detection of cobalt(II) ions in aqueous solution samples utilising a new chemosensor. This...
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Unsymmetrical cyanine dye via in vivo hitchhiking endogenous albumin affords high-performance NIR-II/photoacoustic imaging and photothermal therapy
Herein, an unprecedented synergistic strategy for the development of high-performance NIR-II fluorophore is proposed and validated. Based on an...
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A New Spectrophotometric Method for Thorium Determination Using 1,4-Dihydroxyanthraquinone
AbstractA new reagent, 1,4-dihydroxyanthraquinone ( 1,4-DHA ), is described for the spectrophotometric determination of thorium(IV). Optimization of...
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Ultraviolet, Visible, and Fluorescence Spectroscopy
Spectroscopy in the ultraviolet-visible (UV-Vis) range, the subject of this chapter, is one of the most commonly encountered laboratory techniques in...
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Laboratory glassware cleaning validation in pharmaceutical industry: a case study
Glassware cleaning is an essential part of pharmaceutical industry’s quality process, although, to date, no precise methodology is recommended by the...
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Zirconium (IV)-3-hydroxy-2-tolyl-4H-chromen-4-one complex—the analytical and DFT studies
Trace determination of Zr(IV) was carried out by its complexation with a newly synthesized chromone derivative, 3-hydroxy-2-tolyl-4 H -chromen-4-one...
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Comparison of Two Preconcentration Methods for the Determination of Nickel Using a Ni–2-(2-thiazolylazo)-p-Cresol Complex: Extraction and Sorption onto Ion Exchange Resin
Abstract2-(2-Thiazolylazo)- p -cresol ( TAC ) reacts with Ni(II) at pH 6–10 and forms a 1 : 2 blue complex. The stability constant of this complex is...
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Spectroanalytical Techniques
Among the various analytical techniques used, spectroanalytical techniques have a widely acclaimed application either in qualitative or quantitative...
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Towards low-energy-light-driven bistable photoswitches: ortho-fluoroaminoazobenzenes
Thermally stable photoswitches that are driven with low-energy light are rare, yet crucial for extending the applicability of photoresponsive...
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Metal Ion–Enhanced Quantification of Chloramphenicol in Milk Using Imipramine Hydrochloride as Diazo-Coupling Agent
Chloramphenicol is a broad-spectrum antibiotic that is administered to cattle, fish, poultry, and honeybees among other animals. Consumption of food...
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Rapid spectrophotometric determination and extraction of platinum(IV) from pharmaceuticals assisted by 2-(2-(1-(thiophene-2-yl) ethylidene) hydrazinyl) benzoic acid (TEHBA)
It has been suggested that the chelating agent 2-(2-(1-thiophene-2-yl) ethylidene) hydrazinyl) benzoic acid (TEHBA) be utilized to extract, separate...
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A sensitive nanodrop method for the micro-level determination of cationic surfactant methyltrioctylammonium chloride (MTOAC) in biological fluids and environmental samples
In this study, a rapid, sensitive and novel nanodrop spectrometric approach is used for the trace level determination of cationic surfactant...
