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158 articles for “UV-Spectroscopic”
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Prediction of Transformer Oil Parameters Using UV/VIS Spectroscopy Graphs
Abstract: AbstractUltraviolet–visible rays (UV/VIS) spectroscopy is a method based on a spectrum, which forms a graph between radiations absorbed by the material and the wavelength of the radiations. UV/VIS spectroscopy is able to tell the impurities or decay contents present in any sample material. In this paper, we have used data collected from various tests performed on the transformer oil samples and compared these results with the UV/VIS spectroscopy results. This …
Published in Trends in Electrical Engineering · Vol. 5, Issue 2, 2015 · pp. 35–41 Read article
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Estimation of Amoxicillin Trihydrate and Ciprofloxacin Hydrochloride from Different Marketed Brands of Tablets by UV Spectroscopy
Abstract: In the present work percentage of drug content of Amoxicillin trihyadrate and Ciprofloxacin from the marketed brands of tablets was estimated by UV spectrophotometer. Three different brands of tablets each of Amoxicillin (Mox, Novamox and Erox) and Ciprofloxacin (Cifran, Ciplox and Microflox) are purchased from the retail drug store and all the brands of tablets of Amoxicillin and Ciprofloxacin drug content was estimated from the standard calibration curve of both …
Published in Research & Reviews: A Journal of Drug Design & Discovery · Vol. 3, Issue 1, 2016 · pp. 31–34 Read article
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Comprehensive Overview of Analytical Chemistry: Principles, Techniques, and Method Validation
Abstract: Analytical chemistry constitutes a vital discipline within the realm of scientific inquiry, facilitating the identification and measurement of components present in diverse substances and mixtures. This paper delineates the principles, methodologies, and applications of analytical chemistry, focusing on spectroscopy and chromatography techniques. Spectroscopy, including UV-Visible spectroscopy, elucidates molecular properties by analysing the absorption of electromagnetic radiation, while chromatography enables the separation of compound mixtures based on differential affinities to stationary …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 15, Issue 1, 2024 · pp. 14–21 Read article
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Review on UV – Visible Spectroscopy and HPLC
Abstract: Like Fourier-transform infrared spectroscopy, UV-visible spectroscopy is used to determine the purity of pharmaceutical compounds. Many substances have chromospheres, which absorb certain wavelengths of ultraviolet or visible light. Using the Beer–Lambert equation, the absorption of spectra obtained from these samples at given wavelengths can be directly related to the sample concentration. Normally, UV and UV-visible spectra are recorded at high and low pH, and the results of both are compared …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 13, Issue 1, 2022 · pp. 43–54 Read article
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Spectroscopic and Chromatographic Methods for Estimation of Voriconazole in Bulk and Pharmaceutical Dosage Forms
Abstract: Rapid, accurate and precise methods have been developed for estimation of voriconazole in bulk and pharmaceutical dosage forms using Ultraviolet (UV) spectroscopy and reverse phase high performance chromatography (RP-HPLC). The λmax selected in UV spectroscopy method was 255 nm and the calibration curve was linear in the concentration range of 2-50 µg/mL with correlation coefficient (r2)>0.99. In RP-HPLC method, the separation was carried out on Kromasil C18 (250 x 4.6mm, …
Published in Research & Reviews: A Journal of Drug Formulation, Development and Production · Vol. 8, Issue 1, 2023 · pp. 33–39 Read article
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Preparation and characterization of High-performance ZnO/PVB Nanocomposite films for UV-shielding and Optoelectronics
Abstract: Zinc oxide nanoparticles can be incorporated into polymer matrices to create materials for various high-performance engineering applications. In this study, zinc oxide nanoparticles were reinforced at different loadings (0.5, 1.0, 0.5, 1.0, 1.5, and 2.0 wt.%) in polyvinyl butyral matrix to synthesize nanocomposite films using the solution casting method. The impact of zinc oxide nanofiller on the morphology and ultraviolet-shielding performance of polyvinyl butyral nanocomposite films was evaluated using various …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 27, Issue 3, 2025 · pp. 35–53 Read article
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Estimation of Excessive Addition of Fluoride in Dentifrices of Indian Market: The Present Status
Abstract: The addition of fluoride in dentifrices all over the world is done for the antibacterial and carries prevention. Drug Controller General of India (DCGI) has given a permissible limit for addition of fluoride in dentifrices 1000 ppm for adult and 500 ppm for children; as early as by G.O.I. Notification No. GSR 223(E) dated 19.4.1991. Besides, addition of the raw material also contain fluoride that leads further addition, which leads …
Published in Research and Reviews: A Journal of Pharmacology · Vol. 5, Issue 2, 2015 · pp. 5–10 Read article
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Estimation of Oxfendazole in Bulk and Pharmaceutical Formulation by Various Analytical Methods an Overview
Abstract: Mebendazole, albendazole, levamisole, and pyrantel pamoate, the most often used conventional therapies for soil transmitted helminths in humans, have very varied efficiency against different parasite species and have unfavourable pharmacokinetic properties, such as a short half-life. Oxfendazole, a strong broad-spectrum anthelmintic with a long half-life, has been regarded a promising method for transitioning from veterinary medicine to human use. Analytical approaches for quantitative detection of oxfendazole in human matrix, on …
Published in Research & Reviews: A Journal of Drug Design & Discovery · Vol. 9, Issue 1, 2022 · pp. 34–38 Read article
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Polymer Composite-Supported Jackfruit Peel Adsorbent for Enhanced Copper (II) Removal from Wastewater: Batch Equilibrium and Isotherm Analysis
Abstract: The increasing concern of disposal of copper-containing effluents into the environment has led to heightened interest in designing cost-effective, eco-friendly and scalable adsorbent systems. Traditional metals and synthetically engineered sorbents prove to be effective; however, these systems are energy intensive. Agricultural residues entrapped in polymer composite systems constitute an economically feasible solution to this environmental challenge. This work reports on the design, characterization and performance evaluation of an economical adsorbent …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 375–390 Read article
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Biological Synthesis of Silver Nanoparticles Using Hibiscus Sabdariffa Leaf Extract and It’s Antibacterial Sensitivity Assay
Abstract: In this study, AgNO3 was effectively used to synthesize silver nanoparticles. Hibiscus sabdariffa leaf extract was used to promptly and easily synthesize silver nanoparticles. An UV-Visible spectrophotometer showed absorbance peak in range of 300-600 nm. The procedure was found to be easy to follow, quick, least step and safe for the environment. It is non-toxic, and a viable substitute for traditional physical or chemical procedures. At room temperature, silver ions …
Published in International Journal of Tropical Medicines · Vol. 1, Issue 1, 2024 · pp. 08–13 Read article
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Photochemical Insights into Light: Responsive Heterocyclic Compounds
Abstract: eterocyclic compounds are significant in a wide range of chemical fields. They are crucial components of the structural makeup of bioactive substances. Such compounds can be conveniently transformed through photochemical processes. Chemical reagents are rarely utilized. It is possible for members of one compound family to change into members of another. There is discussion of three key categories of photochemical rearrangements involving heterocyclic compounds: Photochemical reactions involving hydrogen atom transfer …
Published in International Journal of Photochemistry and Photochemical Research · Vol. 1, Issue 2, 2023 · pp. 01–07 Read article
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UV Method of Development and Validation of Olaparib
Abstract: An analytical method must be developed and validated in the discovery, development, and production of pharmaceuticals to ensure the identification, purity, potency, and performance of drug commodities. Quality control laboratories use official test protocols that emerge from the processes. A simple ultraviolet spectrophotometric approach was designed and validated using various characteristics, including linearity. Precision, reproducibility, accuracy, robustness, ruggedness, limit of detection, and limit of quantification are among the measuring criteria. …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 15, Issue 2, 2024 · pp. 20–27 Read article
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Modern Trends in Tungsten(VI) Analysis: From Smart Organic Reagents to High-Sensitivity Spectrophotometry
Abstract: The present review focuses on the spectrophotometric determination of tungsten(VI) using a wide range of organic reagents and their derivatives. Organic ligands have gained considerable importance in analytical chemistry due to their strong ability to form stable and highly colored complexes with tungsten(VI), which enhances the sensitivity and selectivity of spectrophotometric analysis. Various chromogenic reagents reported in the literature for tungsten(VI) determination have been critically examined and compared on the …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 17, Issue 2, 2026 · pp. 19–29 Read article
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Analytical Method Development and Validation for Estimation of Brisoprolol Fumerate in Bulk and Pharmaceutical Dosage Form by UV Spectrometric Method
Abstract: The objective of the present work is to develop a new, rapid, simple, economical, precise, sensitive, linear and accurate, UV Spectrophotometric method has been developed. Phosphate buffer of pH 6.8 is used as solvent for the estimation of Brisoprolol Fumerate bulk and pharmaceutical formulation as per ICH guidelines. Spiked Brisoprolol Fumerate was checked over UV-visible extend for its wavelength of greatest absorbance. The wavelength of most extreme absorbance for Brisoprolol …
Published in Research & Reviews: A Journal of Drug Formulation, Development and Production · Vol. 9, Issue 1, 2022 · pp. 34–40 Read article
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Characterization of Synthesized Heterocyclic Oxadiazole Derivatives Using Mass, UV, IR, and NMR Spectroscopy, Among other Spectroscopic Techniques: Review
Abstract: The current study synthesized and assessed 3-heteroarylazo 4-hydroxy coumarin derivatives' initial antibacterial activities in vitro against four distinct pathogenic bacterial strains, including Pseudomonas aeruginosa, Bacillus subtilis, Escherichia coli, and Staphylococcus aureus. Ampicillin, a common medication, was used to compare each compound's antibacterial properties. UV, IR, 1H NMR, mass spectroscopy, and X-ray diffraction examinations were used to analyze the compounds. By using UV–vis spectra, the solute-chromic behavior of these compounds was …
Published in International Journal of Photochemistry and Photochemical Research · Vol. 1, Issue 1, 2023 · pp. 28–33 Read article
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Pharmaceutical Activity of Mirabilis Jalapa and its Biogenesis of Nanocrystals
Abstract: Bio friendly green modest synthesis of nanoparticles are the present research in nanotechnology. This study has been undertaken to explore the determinants of copper nanoparticles from 1 mM CuSO4 solution through profuse concentration of aqueous flower extract of Mirabilis jalapa reducing besides immobilizing agent. The attribute of copper nanoparticles was studied by using UV-VIS spectroscopy SEM and XRD. The XRD spectrum of the copper nanoparticles established the presence of elemental …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 12, Issue 3, 2025 · pp. 56–65 Read article
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Investigating the Effect of Annealing Temperatures on SnO2 Nano Structural Thin Films and their Properties
Abstract: As deposited and two different annealing temperatures (500°C and 600°C) of Tin dioxide (SnO2) thin films are prepared on glass substrates by Chemical Bath Deposition (CBD) technique and subsequently their structural, morphological, optical and electrical properties are investigated and analyzed as a function of annealing temperature. It’s found that SnO2 films exhibit different nanostructures at different annealing temperatures. XRD analysis confirms that both deposited and annealed films are cubic structure …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 12, Issue 1, 2022 · pp. 28–39 Read article
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Synthesis of Silver Nanoparticles by Biological Method and its Application in Protection of Wood from Ganoderma Species
Abstract: The major advancement in the field of nanotechnology during the last decade have resulted in the wide spread application of nanomaterials in the field of science and technology. Nanoparticles were synthesised biologically, which is a pure green chemistry and completely toxic free compared to chemical synthesis. The property of the reductases present in the E. coli culture filtrate reduces silver nitrate to silver oxide and also serves as a capping …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 3, Issue 1, 2013 · pp. 37–43 Read article
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Compatative Catalytic Study of Oxidation of Thiourea by Chromium (VI) in Presence of Different Catalysts and Micelles
Abstract: The series of catalysts like acetate, oxalate, EDTA, the varies micelles viz, CTAB, SDS, TRITON X-100 was carried out in the kinetic study of oxidation of Thiourea by Cr(VI) as an oxidant in water medium. The effect of catalytic efficiency has been study for varies catalyst and micelles by volumetric method and UV spectroscopic methods. The product was confirmed by IR studies. UV study reveals shows that higher catalytic efficiency …
Published in International Journal of Advance in Molecular Engineering · Vol. 4, Issue 1, 2026 · pp. 9–21 Read article
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Simultaneous Estimation of Baclofen and Nimesulide: Method Development and Validation by UV-Spectrophotometric Method
Abstract: A simple, accurate, precise, reproducible and economical UV spectroscopic methods for simultaneous estimation of Baclofen and Nimesulide in tablet dosage form have been developed. The method is based on the principle of Q-Analysis where in the absorbance was measured at 227 nm (iso-absorptive point) and 218 nm (λmax of Baclofen) in simulated gastric fluid (pH 1.2). Baclofen and Nimesulide show linearity at all the selected wave- lengths and obeys Beer’s …
Published in Research & Reviews: A Journal of Drug Design & Discovery · Vol. 2, Issue 2, 2015 · pp. 6–11 Read article