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Relevant bibliographies by topics / UV –Spectrophotometric methods

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Academic literature on the topic 'UV –Spectrophotometric methods'

Author: Grafiati

Published: 5 June 2025

Last updated: 2 August 2025

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Journal articles on the topic "UV –Spectrophotometric methods"

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Shirkhedkar, Atul A., and Saurabh B. Ganorkar. "NOVEL ZERO ORDER UV-SPECTROPHOTOMETRIC AND FIRST ORDER DERIVATIVE UV-AUC METHODS FOR ESTIMATION OF ETOMIDATE IMPARTING HYDROTROPIC SOLUBLIZATION." INDIAN DRUGS 52, no. 04 (2015): 15–20. http://dx.doi.org/10.53879/id.52.04.10214.

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Simple, novel UV-spectrophotometric methods have been developed and validated for the estimation of etomidate imparting a hydrotropic solublization phenomenon. Etomidate is an imidazole derivative, approved as a short acting intravenous anesthetic having poor water solubility. As the UV-spectrophotometric estimation was not seen in any published literature, we have reported it here; zero order UV-spectrophotometry (Method I) and First Order Derivative UV-spectrophotometry (Method II) with the application of hydrotropy to counteract the poor water solubility of etomidate. The present research e

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Panda, Sagar S., and Ravi Kumar V.V. Bera. "HPTLC AND FIRST DERIVATIVE UV-SPECTROPHOTOMETRIC METHODS FOR ESTIMATION OF VILAZODONE IN PHARMACEUTICALS." Indian Drugs 60, no. 01 (2023): 61–66. http://dx.doi.org/10.53879/id.60.01.12718.

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A new HPTLC method and a sensitive UV spectrophotometric method were established for estimating vilazodone hydrochloride in its pharmaceutical formulations. An environment-friendly chromatographic mobile phase consisting of ethyl acetate: toluene: formic acid (5:4:1, V/V/V) along with ultraviolet densitometric detection at 240 nm using pre-coated silica gel plates was used. First derivative UV spectrophotometric determinations were performed using methanol as solvent, and amplitudes were measured for quantification purposes. Validation studies were compliant with ICH guidance. Vilazodone shows

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Wahyuningtyas, Fatma Anggoro, Alda Safitri Maria Ulfa, and Dewi Astri Rahmawati. "Identification of antibiotic by chromatographic and spectrophotometric methods – A Review." Asian Journal of Analytical Chemistry 1, no. 1 (2023): 18–24. http://dx.doi.org/10.53866/ajac.v1i1.270.

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The purpose of this article to review the validation and content of antibiotics using various chromatographic and spectrophotometric methods. This review article used five analytical methods on antibiotics, namely high-performance liquid chromatography (HPLC), Fourier transform infrared (FTIR), gas chromatography (GC), ultraviolet-visible (UV-Vis) spectrophotometer and liquid chromatography/mass spectrophotometer (LC/MS) methods. Antibiotics are the most widely used drugs for infections caused by bacteria. Based on a review of several studies related to antibiotic analysis, the general techniq

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Drozd, J. "Comparison of classic and derivative UV spectrophotometric methods for determination of dextromethorphani hydrobromidum." Acta Facultatis Pharmaceuticae Universitatis Comenianae 59, no. 1 (2012): 22–29. http://dx.doi.org/10.2478/v10219-012-0014-8.

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Comparison of classic and derivative UV spectrophotometric methods for determination of dextromethorphani hydrobromidumA method for the fast determination of dextromethorphani hydrobromidum in pharmaceutical preparations by classic spectrophotometry - zero and first-, second- and third-order derivative spectrophotometry, using "peak - peak" (P - P) and "peak - zero" (P - O) measurements has been performed. The calibration curves are linear within the concentration range of 1.0 - 25.0 μg ml-1 for dextromethorphani hydrobromidum. The procedure is simple, rapid and the results are reliable.

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Omotoso, E. A., and E. B. Unaji. "Comparative evaluation of some moxifloxacin hydrochloride tablet brands marketed in Nigeria using five different validated analytical methods." Nigerian Journal of Pharmaceutical Research 19, no. 1 (2024): 109–19. http://dx.doi.org/10.4314/njpr.v19i1.11s.

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Background: Assay of pharmaceuticals is an important aspect of quality control. It is necessary to compare the bioequivalence of generic brands of the any drug to an innovator/comparator brand as this forms the basis for comparing their therapeutic equivalence.Objective: This study aimed to determine the most accurate method for the assay of moxifloxacin hydrochloride (MOX-HCl) tablet brands in Nigerian markets by using five different validated analytical methods and also verify their interchangeability.Material & Methods: This study involved three brands of MOX-HCl including the comparato

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Bouali, Wiem, Mariem Bouali, Asena Ayse Genc, and Nevin Erk. "DEVELOPMENT AND VALIDATION OF GREEN RP-HPLC AND SPECTROPHOTOMETRIC METHODS FOR DETERMINATION OF ALPELISIB IN BULK AND PHARMACEUTICAL DOSAGE FORMS." Ankara Universitesi Eczacilik Fakultesi Dergisi 49, no. 2 (2025): 3. https://doi.org/10.33483/jfpau.1579369.

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Objective: This study aims to develop and validate green analytical methods, specifically UV spectrophotometry, first-order derivative spectrophotometry, and reverse-phase HPLC (RP-HPLC), for determining Alpelisib (ALP) in bulk and pharmaceutical formulations. By comparing the methods using GAPI and AGREE metrics, the study evaluates their environmental friendliness, precision, and applicability. Material and Method: The UV spectrophotometric and RP-HPLC analyses were conducted using Shimadzu UV 1800 and Agilent 1100 HPLC systems, respectively. The mobile phase for HPLC comprised 0.1% trifluor

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Patil, Sushant S., Saurabh B. Ganorkar, and Atul A. Shirkhedkar. "Pharmaceutical Analysis of Eptifibatide via Simple, Rapid, Economical UV-Spectrophotometric Methods." JOURNAL OF PHARMACEUTICAL TECHNOLOGY, RESEARCH AND MANAGEMENT 3, no. 1 (2015): 49–55. http://dx.doi.org/10.15415/jptrm.2015.31004.

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V. U., Barge, Jadhav P. B., Attarde S. R., Kodre K. V., and Patil R. Y. "DEVELOPMENT AND VALIDATION OF UV SPECTROPHOTOMETRIC METHODS FOR DETERMINATION OF MEGLUMINE IN BULK." JOURNAL OF ADVANCES IN CHEMISTRY 10, no. 3 (2014): 2325–28. http://dx.doi.org/10.24297/jac.v10i3.2281.

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UV, first, second and third derivative spectrophotometric methods have been developed for the determination of meglumine. The solutions of standard and sample were prepared in distilled water. For the first method i.e. calibration curve UV spectrophotometric method, the quantitative determination of the drug was carried at 254 nm and the linearity range was found to be 10 – 60 µg/ml. For the first, second, third derivative spectrophotometric methods the drug was determined at 247 nm, 216 nm, 266 nm with the linearity range 10 – 60 µg /ml. The calibration graphs constructed at their wavelength

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S. Panda, Sagar, Ravi Kumar V. V. Bera, and Biswajit Sahu. "APPLICATION OF ICH Q14 CONCEPT FOR CHEMOMETRICS-ASSISTED DEVELOPMENT OF SPECTROPHOTOMETRIC METHODS FOR ESTIMATING PIMAVANSERIN IN TABLETS." Indian Drugs 59, no. 09 (2022): 74–81. http://dx.doi.org/10.53879/id.59.09.12191.

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In the present study, a novel analytical procedure development concept is utilized along with a chemometrics approach. Two sensitive UV spectrophotometric methods were developed for quantifying a new antipsychotic agent, pimavanserin tartarate, in tablets. The scanning speed and sampling interval of the UV spectrophotometric methods were the critical method variables investigated and optimized by a face-centred cubic design during the development phase. A zero-order (222 nm) and a first derivative (maxima: 256 nm and minima: 283 nm) method displayed linear response over 0.5-100 µg mL-1, with i

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Oppe, Tércio Paschke, Júlia Menegola, and Elfrides Eva Scherman Schapoval. "DEVELOPMENT AND VALIDATION OF UV SPECTROPHOTOMETRY AND LIQUID CHROMATOGRAPHY METHODS FOR DETERMINATION OF CEFPIROME IN RAW MATERIAL AND PHARMACEUTICAL DOSAGE." Drug Analytical Research 3, no. 1 (2019): 42–50. http://dx.doi.org/10.22456/2527-2616.93809.

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In the present work, analytical methods, UV Spectrophotometry and Liquid Chromatography (HPLC), were developed and validated for quantification of cefpirome, a broad-spectrum fourth-generation cephalosporin, in raw material and powder for injectable preparation. The UV spectrophotometric method was performed at 271 nm, using 0.1 M hydrochloric acid as solvent. The HPLC was carried out using Techsphere ODS column and mobile phase consisted of methanol-water (30:70, v/v) with flow rate 0.8 mL/min and UV detection at 265 nm. The validation method yielded good results demonstrated statistically th

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Dissertations / Theses on the topic "UV –Spectrophotometric methods"

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Pellegrini, Christine. "Investigating the suitability of UV/Vis spectrophotometric methods for analyzing arsenic in urban soils for use in undergraduate laboratory courses." Connect to resource, 2010. http://hdl.handle.net/1811/45372.

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Ashie, Jennifer Bernice. "Study on Methods of Simultaneous Multi-Component Analysis." Digital Commons @ East Tennessee State University, 2008. https://dc.etsu.edu/etd/1989.

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Many new instrumentation and different instrumental techniques have been developed to deal with increasing complexity of samples encountered. Many researchers also have coupled these instrumental techniques with chemometric algorithms to assist in the quantitative analysis of multi-component samples in the hope of alleviating the need of tedious separation and cleanup procedures. These newer chemometric procedures tend to be complex and difficult to understand and implement and are successful under different circumstances and conditions. In this study, we start from the very simple beginning a

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CASTRO, KELLY NEOOB DE CARVALHO. "METHODS FOR THE IMIDACLOPRID QUANTIFICATION IN AQUEOUS SOLUTIONS: METROLOGICAL VALIDATION AND COMPARISON BETWEEN UV-VIS SPECTROPHOTOMETRY AND HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2007. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=9960@1.

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PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO<br>Um procedimento analítico é considerado apropriado para uma aplicação específica quando é capaz de gerar resultados confiáveis, que possibilitem a tomada de decisão com grau de confiança adequado, sendo sua adequação consolidada mediante a realização de ensaios de validação. Este trabalho propõe a utilização de um procedimento analítico alternativo, mais simples e econômico, baseado na técnica espectrofotométrica de absorção molecular, para quantificação de imidacloprid, um inseticida sistêmico, em amostras de solução aquosa. Foi dem

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Orsine, Eliane Maria de Almeida. "Determinação espectrofotométrica do cloridrato de ranitidina em medicamentos." Universidade de São Paulo, 1992. http://www.teses.usp.br/teses/disponiveis/9/9139/tde-13102014-155903/.

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O cloridrato de ranitidina, um antagonista dos receptores H2 da histamina, foi determinado em comprimidos e injetáveis por espectrofotometria no ultravioleta, a 313nm, e por espectrofotometria no visível, a 615nm, utilizando o cloridrato da hidrazona da 3-metil-2-benzotiazolinona (MBTH) a 0,35% em HCl 0,M e cloreto férrico a 0,40% em HCl 0,1M, como reagentes de cor. Na espectrofotometria no ultravioleta a lei de Beer foi obedecida no intervalo de concentração de 5,0 a 18,0 µg/mL. Quatro amostras comerciais foram analisadas. Os coeficientes de variação foram 0,36% e 0,71% para comprimidos,

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Murdoch, Travis Michael. "Investigation of Quality Parameters in Australian Olive Oils for Authentication." Thesis, 2020. https://vuir.vu.edu.au/42154/.

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The authentication of extra virgin olive oils (EVOOs) is of importance due to the potential economic impacts on the global market when olive oils are diluted with other edible oils. The International Olive Council stipulates a wide range of methods to authenticate EVOOs, however, these methods are subject to limitations. This research addresses certain weaknesses associated with these methods such as the analysis time, consistency and reliability of the official methods. A series of techniques and EVOO chemical parameters that could be used to supplement current authentication techniques was

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Ferreira, Armanda Manuela Henriques de Barros. "Carbon monoxide quantification by UV/Vis spectrophotometry: a method validation and stability study in whole blood samples." Master's thesis, 2016. https://repositorio-aberto.up.pt/handle/10216/88449.

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Ferreira, Armanda Manuela Henriques de Barros. "Carbon monoxide quantification by UV/Vis spectrophotometry: a method validation and stability study in whole blood samples." Dissertação, 2016. https://repositorio-aberto.up.pt/handle/10216/88449.

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Hejsková, Veronika. "UV/VIS spektrofotometrie a možnosti jejího využití v rámci vzdělávání učitelů chemie." Master's thesis, 2016. http://www.nusl.cz/ntk/nusl-344982.

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This master's thesis discusses the use of UV/VIS spectrophotometry in chemistry teacher education. Optical methods principles are described in theoretical part of the thesis, and. the main part is dedicated to UV-VIS spectrophotometry. Tasks for quantifying and qualifying substances determination are described in experimental part. Educational tasks are described in a way so that chemistry teachers could use for instructions.

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Book chapters on the topic "UV –Spectrophotometric methods"

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Adhikary, Babita, and Ladi Alik Kumar. "UV-visible spectrophotometric method for estimation of Tacrolimus in bulk and different pharmaceutical capsules." In Advancement in Animal Handling and Generative AI for Pre-clinical Studies. CRC Press, 2025. https://doi.org/10.1201/9781003672869-17.

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Reddy, A. Raja, G. Sreelatha, P. Pravalika, and J. V. S. Chandana. "Development and Validation of Non-Steroidal Anti-Inflammatory Drug in Pure and Formulation using UV- Spectrophotometric Method." In Advances in Sports Science and Technology. CRC Press, 2025. https://doi.org/10.1201/9781003616283-51.

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Qarah, Nagib, and Ezzouhra El-Maaiden. "Spectrophotometric/Titrimetric Drug Analysis." In Drug Formulation Design [Working Title]. IntechOpen, 2023. http://dx.doi.org/10.5772/intechopen.109364.

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The importance of pharmaceuticals comes from their direct connection to human life. Therefore, many analysis techniques such as chromatography, spectroscopic methods, and others have been developed for one goal, which is to ensure that the drug reaches humans with high quality. Spectrophotometric and titrimetric methods have been in general use for the last 40 years and over this period have become the most important analytical instrument in the modern-day laboratory. In many applications, other techniques could be employed in pharmaceutical analysis, but none rival UV–visible spectrometry as

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Palur, Keerthisikha, Sreenivasa Charan Archakam, H. Neelofar, and Ranganayakulu Diviti. "SIMULTANEOUS DETERMINATION OF PARACETAMOL, PHENYLEPHRINE HYDROCHLORIDE AND LORATADINE IN TABLET DOSAGE FORM BY MULTITUDINAL CHEMOMETRIC ASSISTED ANALYTICAL METHODS." In Futuristic Trends in Pharmacy & Nursing Volume 3 Book 10. Iterative International Publisher, Selfypage Developers Pvt Ltd, 2024. http://dx.doi.org/10.58532/v3bgpn10p3ch4.

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Simultaneous determination of drugs in multi-component formulations without prior separation imposes a big challenge to the analyst in developing simple, precise and accurate analytical methods. This can be achieved by the application of Chemometrics to the conventional analytical methods. In this work, chemometric assisted UV-Spectrophotometry and RP-HPLC methods were applied for the quantification of Loratadine (LOR), Paracetamol (PRT) and Phenylephrine hydrochloride (PEH) in their combined dosage form. UV-Spectrophotometric analysis was carried out by applying two chemometric models namely,

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Maity, Arnab. "Photophysical Detection of Singlet Oxygen." In Reactive Oxygen Species [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.99902.

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The chemical reactivity of singlet oxygen (1O2) (SO) derives from its electronically excited state. Being a unique reactive oxygen species SO takes part in many important atmospheric, biological physical, chemical, and therapeutic process and attracted current research interest. To understand the mechanistic pathways in various process the detection and quantification of SO is very important. The direct method of detection is very challenging due to its highly reactive nature. Only direct method of determination of phosphorescence of SO at 1270 nm has been utilised but that also puts some limi

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Mohammed, Jahasultana, Narender Malothu, Narayana Murthy Ganta, Nestory Mbilinyi, J. Uma Maheswari, and Monzir Idris. "A UV-Spectrophotometric Method for Simultaneous Estimation of Abacavir and Lamivudine in their Pharmaceutical Dosage Forms." In Current Trends in Drug Discovery, Development and Delivery (CTD4-2022). Royal Society of Chemistry, 2023. http://dx.doi.org/10.1039/9781837671090-00220.

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The combination of Abacavir (ABA) and lamivudine (LAM) is being used in the treatment of HIV. Though, there was several spectroscopic methods have been reported, it needs a simple, sensitive, and rapid analytical method for precise analysis. The objective of the current research was to establish a UV-spectrophotometric method for simultaneous estimation of in their bulk and tablet dosage form. In the current study, both drugs were estimated by simultaneous equation method. The method is characterized by measurement of absorbances at two wavelengths 218 nm and 274 nm, λmax of ABA and LAM, respe

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Gonta, Maria, Larisa Mocanu, and Vera Matveevici. "Heterogeneous photocatalytic oxidation with titanium dioxide of antibiotics and anti-inflammatories from aqueous solutions." In Redox Processes with Electron and Proton Transfer. Moldova State University, 2023. http://dx.doi.org/10.59295/prtep2023_20.

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In recent years, the problem of pollution of water sources with various pharmaceutical preparations and their metabolites has become topical around the world. Currently the solution to the problem of complete removal of residues of pharmaceutical substances and other substances from wastewater is associated with the use of advanced oxidative processes (AOPs). In the given work, kinetic models of heterogeneous photooxidation/mineralization of some antibiotics and anti-inflammatory drugs and the mixture of drugs (amoxocillin (AMX), cephalexin (CLX), diclofenac sodium (DCF)) were studied under UV

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Dadi, Murali, and Mohd Yasir. "Spectroscopy and Spectrophotometry: Principles and Applications for Colorimetric and Related Other Analysis." In Colorimetry. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.101106.

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Spectrophotometry and different types of spectroscopy are the technique that involved in identifying and quantifying the amount of a known substance in an unknown medium. Spectroscopy is the most convenient method for analysis of unknown samples both qualitatively and quantitatively with a good percentage of accuracy. Different types of spectroscopic and spectrophotometric techniques are very helpful in analyzing the samples even at sub-ppm level particularly in the field of scientific research. These techniques based on the simple principle that the amount of specific radiation i.e. ray or li

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Prakash Jain, Buddhi, Shweta Pandey, and Shyamal K. Goswami. "Estimation of Proteins by UV Spectrophotometric Method." In Protocols in Biochemistry and Clinical Biochemistry. Elsevier, 2025. http://dx.doi.org/10.1016/b978-0-443-13945-1.00044-4.

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Ouakki, Moussa, M. Galai, Z. Aribou, M. Rbaa, B. Lakhrissi, and M. Cherkaoui. "Novel Compounds of Imidazole Derivatives as Effective Corrosion Inhibitors for Mild Steel in Hydrochloric Acid Solution." In New Challenges and Industrial Applications for Corrosion Prevention and Control. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-2775-7.ch006.

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The inhibition performance of two imidazole derivatives, IM-Cl and IM-CH3, on the corrosion behavior of MS in 1M HCl acid solution was studied through weight loss method and electrochemical tests. The results obtained from the electrochemical methods show that inhibition efficiency increases with the increase of inhibitors concentration. The adsorption of inhibitors on the mild steel surface obeys Langmuir adsorption isotherm. The corrosion protection was once also investigated with the aid of UV–Vis spectrophotometry. SEM-EDX was performed and discussed for surface study of uninhibited and in

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Conference papers on the topic "UV –Spectrophotometric methods"

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Azizah, Ninna Arifatun Nurul, Sentot Budi Rahardjo, Witri Wahyu Lestari, and Soerya Dewi Marliyana. "Synthesis and Characterization of Copper Complex Chelated with Phenobarbital Ligand." In 8th International Conference on Advanced Material for Better Future. Trans Tech Publications Ltd, 2025. https://doi.org/10.4028/p-n2rlar.

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The research is intended to synthesize copper(II) with Phenobarbital (PB) complex in 1 : 4 mole ratio. The sole reflux method is designated to synthesize reactant within methanol solvent. Cu(II) complex is characterized using Atomic Absorption Spectrophotometry (AAS), UV-Vis Spectrophotometer, Fourier-transform Infrared Spectroscopy (FTIR), Thermogravimetric Analysis (TGA), Conductivity meter, and Magnetic Susceptibility Balance (MSB). The Cu(II)-PB complex signified 1 absorption peak at 517.5 nm with 2Eg → 2T2g transition. Complex is then composed by 6 electron donors of Cu ion-bound ligand,

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Boci, Ilirjana. "Comparison of Two Nitrite UV-VIS Spectrophotometric Analysis Methods in Meat Processed Product." In 9th International Scientific Conference ERAZ - Knowledge Based Sustainable Development. Association of Economists and Managers of the Balkans, Belgrade, Serbia, 2023. http://dx.doi.org/10.31410/eraz.2023.567.

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In most countries, the use of nitrite in meat processed products either ingoing or the residual amount, is regulated by law. This regulation is continuously updated reflecting the newest and most relevant data after better understanding nitrite’s potential harmful effects and its transformation pathways in organisms. Sodium nitrite added to meat products is partly converted to the heat stable NO-myoglobin and to nitrate by oxidation, acting this way as an antioxidant. These biochemical red ox reactions are not fully understood because they depend on many variables in meat matrixes. Nitrit

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Kolbe, J., H. Kessler, T. Hofmann, et al. "Optical properties of dielectric UV/VUV-coatings deposited by IAD and IBS." In OSA Annual Meeting. Optica Publishing Group, 1991. http://dx.doi.org/10.1364/oam.1991.pd4.

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Low-loss dielectric mirrors for wavelengths between 130 and 250 nm were developed using conventional deposition, IAD and IBS. Firstly, single layers of SiO2, Al2O3, HfO2, AlF3, MgF2, LaF3, NdF3 and GdF3 were deposited. The refractive indices, extinction coefficients and packing densities of the layers were determined by spectrophotometric methods in order to investigate their dependence on deposition parameters. At HR-coatings, the reflection coefficients were measured and compared to values calculated from single layer data and interface roughness data. At 248 nm, the highest reflectivities w

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Atiyah, Ali, Kameran Hussein, and Abdul Majeed Ahmed. "Spectrophotometric Determination of Escitalopram Oxalate in Pure Form and its Pharmaceutical Preparation via Oxidative Coupling Reaction." In 5th International Conference on Biomedical and Health Sciences. Cihan University-Erbil, 2024. http://dx.doi.org/10.24086/biohs2024/paper.1353.

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background: One of the techniques for spectroscopic determination are the oxidative coupling reaction, have been utilized in the estimation of compounds in many fields, such as agriculture, clinical, and pharmacological analysis. Aims: The aim of this studying to locate a sensitive and cheap technique for the estimation of escitalopram-oxalate (ESC) in pharmacological compositions and in pure form. Methods and Material: The process relies on the coupling between the escitalopram oxalate with 4-aminoantipyrine (4-AAP) in a basic medium in the attend of N-Bromosuccinimide (NBS) to produce an int

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Pivar, Matej, Jon Brce, and Deja Muck. "DIFFERENT METHODS FOR PRODUCING COLOR REPRODUCTIONS ON 3D PRINTED OBJECTS." In INTERNATIONAL SYMPOSIUM ON GRAPHIC ENGINEERING AND DESIGN. UNIVERSITY OF NOVI SAD FACULTY OF TECHNICAL SCIENCES DEPARTMENT OF GRAPHIC ENGINEERING AND DESIGN 21000 Novi Sad, Trg Dositeja Obradovića 6, 2024. http://dx.doi.org/10.24867/grid-2024-p14.

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This article presents two methods of colour printing on programmable 3D structures and their use for practical applications in everyday life. The colour printing was done by direct printing with a flatbed UV inkjet printer and indirect printing by thermally transferring the electrophotographic toner to the 3D printed object produced with the most widely used and affordable material extrusion 3D printing technology. The print quality of the colour reproductions was determined by basic densitometric and spectrophotometric measurements, ink adhesion analysis and image analysis of the printed grap

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Cajucom, Diana Ross E., and Ernesto S. Cajucom Jr. "SUNBLOCK ACTIVITY POTENTIAL OF LEAF EXTRACT FROM COLOCASIA ESCULENTA(GABI) LEAVES." In International Trends in Science and Technology. RS Global Sp. z O.O., 2021. http://dx.doi.org/10.31435/rsglobal_conf/30032021/7478.

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Evaluation of sunblock activity is an important aspect nowadays, as exposure to sunlight is recognized as a major factorin the causeof the progressive unwanted changes in the skin appearance and physiology due to UV rays present in the sunlight.In thisstudy, sunblock activity of Colocasia esculenta (gabi) leaf extract was determined by absorption spectroscopy using UV-vis spectrophotometry. The in-vitro SPF of the formulations was determined according to the UV Spectrophotometric method. The Colocasiaesculenta (gabi) leaf extract under study produced high absorbance at 290-320nm wavelength ran

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A’in, Nabila Nurul, Alizar Ulianas, Nurhafizah Azwir, Indah Gusti Fauzi, and Wahyudi. "Uric acid analysis using AgNO3 with UV-Vis spectrophotometry method." In THE 5TH INTERNATIONAL CONFERENCE ON MATERIALS ENGINEERING AND NANOTECHNOLOGY (ICMEN 2021). AIP Publishing, 2023. http://dx.doi.org/10.1063/5.0126903.

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Gavat, Cristian-Catalin. "Ultraviolet (UV) Spectrophotometric Analysis of Ketoprofen in Tablets–Statistical Validation of Proposed Method." In IOCN 2023. MDPI, 2023. http://dx.doi.org/10.3390/iocn2023-14442.

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Zahoor, Ishrat, Sukhbir Singh, Rajni Bala, and Neelam Sharma. "Development and validation of UV-spectrophotometric method for quantitative estimation of Fenoprofen calcium." In THE FIFTH SCIENTIFIC CONFERENCE FOR ELECTRICAL ENGINEERING TECHNIQUES RESEARCH (EETR2024). AIP Publishing, 2024. http://dx.doi.org/10.1063/5.0229085.

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Cruz-Perez, Ezri, Izmit Camacho de la Cerda, José Locia-Esninoza, Luz Irene Pascual-Mathey, Magda Olivia Perez-Vasquez, and Joel Jahaziel Díaz-Vallejo. "Validation of a UV Spectrophotometric Method for Quantification of Omeprazole Using Different Types of Diluents." In 2023 IEEE International Conference on Engineering Veracruz (ICEV). IEEE, 2023. http://dx.doi.org/10.1109/icev59168.2023.10329709.

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Reports on the topic "UV –Spectrophotometric methods"

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Chutimaworapan, Suchada, Chaiyo Chaichantippayuth, and Areerat Laopaksa. Formulation of pharmaceutical products of Garcinia mangostana Linn. extracts. Chulalongkorn University, 2006. https://doi.org/10.58837/chula.res.2006.32.

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Abstract:

Part I: The purpose of the investigation was to develop the extraction process that was simple, practical and giving high yield. The maceration of dried powder of Garcinia mangostana fruit husk with ethyl acetate gave yellow crystalline powder of mangostin. The yield was calculated as 7.47%. The identification of the Garcinia mangostanahusk extract was carried out by thin-layer chromatography (TLC) and differential scanning calorimetry. The TLC of mangostin was done by using the alumina sheet and ethyl acetate: hexane (3:1) as mobile phase. The Rf value as compared with standard mangostin was

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