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Journal articles on the topic 'UV Visible Spectrophotometer'

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1

Dr., G. Abirami, T. Vetrichelvan Dr., Raman M., and Suvetha S. "A Novel Validated UV Spectroscopy Method for the Determination of Prucalopride Succinate in Solid Dosage Form." International Journal of Innovative Science and Research Technology 8, no. 3 (2023): 1513–20. https://doi.org/10.5281/zenodo.7789308.

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Three simple, accurate, novel, safe and precise methods were developed by the selective UV method for the estimation of water-soluble drug Prucalopride Succinate in pharmaceutical Dosage Form. Estimation was achieved by Shimadzu -1700 Double Beam UV Visible Spectrophotometer with a pair of 10mm matched quartz cells and ELICO SL -210 Double Beam UV Spectrophotometer with a pair of 10mm matched quartz cells. By using UV Spectrophotometer, standard solution was absorbed. From the UV spectra obtained, Prucalopride Succinate showed maximum absorbance at 226nm. By using Visible Spectrophotometer, st
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2

Gharge, Varsha, Tulashiram Lokhande, and Shobha Hadpad. "ANTI-SOLAR STUDY OF ETHANOLIC EXTRACT OF LEAVES CASSIA FISTULA." Journal of Drug Delivery and Therapeutics 8, no. 5-s (2018): 232–34. http://dx.doi.org/10.22270/jddt.v8i5-s.1964.

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Objective: The present study aimed at the phytochemical examination and anti-solar activity of Cassia Fistula (leaf) Ethanolic extract has more Flavonoid content based on this chemical substance photo protective activity was evaluated using UV visible spectrophotometry, where the method is diffused transmittance and the range of UV-visible about 200-400nm.
 Methods: The pulverized dried Cassia Fistula was extracted with ethanol using soxhlet apparatus. Ethanolic extract were filtered & evaporated to dryness. The photo protective activity was evaluated by using UV visible spectrophotom
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3

Ngibad, Khoirul, and Dheasy Herawati. "Perbandingan Pengukuran Kadar Vitamin C Menggunakan Spektrofotometri UV-Vis pada Panjang Gelombang UV dan Visible." Borneo Journal of Medical Laboratory Technology 1, no. 2 (2019): 77–81. http://dx.doi.org/10.33084/bjmlt.v1i2.715.

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Vitamin C is a source of antioxidants which has a primary function to inhibit the occurrence of an oxidation reaction and inhibit a free radical. The source of vitamin C can be found in food and beverage. This study aims to compare the measurement of vitamin C levels using a UV-Vis spectrophotometer at UV and Visible wavelength. The method used in this study was the UV-Vis spectrophotometry method. The analysis of vitamin C levels at UV wavelength 266 nm and Visible wavelength 494 nm with a calibration curve range 0.3 to 0.8 mg/L. Validation of the methods studied included: linearity, detectio
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4

Monarumit, N., T. Lhuaamporn, D. Schwarz, P. Wathanakul, and W. Wongkokua. "An application of polychromatic UV-Vis-NIR spectroscopy on detection of beryllium treatment in ruby and yellow sapphire." Journal of Physics: Conference Series 2653, no. 1 (2023): 012011. http://dx.doi.org/10.1088/1742-6596/2653/1/012011.

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Abstract The ultraviolet-visible-near infrared (UV-Vis-NIR) spectroscopy has been essentially used to characterize gem materials and their treatments. The spectrophotometer was designed using a diffraction grating to provide the monochromatic light from a tungsten lamp in analyzing a sample. The signal is recorded by a photodiode, resulting in a characteristic spectrum of a gemstone sample. While the monochromatic UV-Vis-NIR spectrophotometer is used for characterizing treated ruby and yellow sapphire samples; however, some indicative characteristic absorptions could be missing. The technique
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5

Blanco, Marcelo, Jordi Coello, Hortensia Iturriaga, Santiago Maspoch, and Esther Rovira. "Wavelength Calibration Transfer between Diode Array UV-Visible Spectrophotometers." Applied Spectroscopy 49, no. 5 (1995): 593–97. http://dx.doi.org/10.1366/0003702953964084.

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The need to obtain expeditious results in control analyses of complex mixtures has turned multivariate calibration procedures into major choices for routine analyses. The inherent complexity of the calibration process and the practical need for analyses to be carried out as near the manufacturing line as possible occasionally entail calibrating with a different instrument from that subsequently employed for the analytical measurements proper. This paper exposes the problems potentially arising in transferring calibrations between diode array UV-Vis spectrophotometers. Basically, such problems
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6

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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7

Papadopoulos, N., Maria Limniou, Giannis Koklamanis, Apostolos Tsarouxas, Mpampis Roilidis, and Stephen W. Bigger. "Spec UV-Vis: An Ultraviolet-Visible Spectrophotometer Simulation." Journal of Chemical Education 78, no. 11 (2001): 1560. http://dx.doi.org/10.1021/ed078p1560.

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8

Suhud, Khairi, Sukoma Sukoma, Sitti Saleha, and Muhammad Syukri Surbakti. "Development of TCS3200 Color Sensor Based on Arduino Uno and Its Application in Determining Borax Levels in Food." Indonesian Journal of Fundamental and Applied Chemistry 9, no. 2 (2024): 74–81. http://dx.doi.org/10.24845/ijfac.v9.i2.74.

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A color scanner application using the TCS3200 sensor, Arduino Uno microcomputer with IDE Software Program, a black box container, and a 12x2 matrix display has been designed, built, and tested. This sensor is employed to measure the level of borax in food items such as meatballs, tofu, and noodles in Banda Aceh. The obtained results are then compared with the measurement results of the Standard Ultraviolet-Visible Spectrophotometry (UV-Vis) method. Samples were prepared using centrifuge technique and the filtrate was collected. Subsequently, optical samples were prepared using dried filter pap
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9

Setiawan, Ely, Trisnowati Trisnowati, and Dadan Hermawan. "SINTESIS NATRIUM PENTAGAMAVUNONAT DAN UJI STABILITASNYA MENGGUNAKAN SPEKTROFOTOMETER UV-Visible." Molekul 1, no. 1 (2006): 24. http://dx.doi.org/10.20884/1.jm.2006.1.1.19.

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A research on the synthesis of sodium pentagamavunonat (Na-PGV-0) and its stability test using UV-Visible spectrophotometer were carried out. The synthesis of Na-PGV-0 carried out by reacting PGV-0 in tetrahydrofuran solvent refluxed with sodium ethoxide in mol comparison (1:2) for two hours. Structure elucidation by spectroscopic methods using UV-Visible, IR, 1H-NMR, 13C-NMR and stability test in water using UV-Visible spectrophotometer. The reaction yields 107,21 % (% w/w) products. A products was soluble in water and methanol. Structure elucidation results indicated that the formed compound
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10

Anuj, Kumar Garg. "Quantitative Analysis of Caffeine in the Green Tea, Black Tea and Soft Drink Using UV-Visible Spectrophotometer." Indian Journal of Science and Technology 14, no. 37 (2021): 2860–64. https://doi.org/10.17485/IJST/v14i37.2241.

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Abstract <strong>Objective</strong>&nbsp;-To determine the content of caffeine in the beverages like green tea, black tea, and soft drink which are commercially available in the local market of Hapur with the help of a UV Visible spectrophotometer.&nbsp;<strong>Method</strong>- To find out the content of caffeine, six different brands of green tea, black tea, and soft drink were purchased from the local market in Hapur. The caffeine was extracted from them using chloroform as an extractant and assessed qualitatively and quantitatively with the help of a UV Visible spectrophotometer. The maximu
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11

Pratama, Mohammad Rizki Fadhil, Suratno Suratno, and Evi Mulyani. "Profile of Thin-Layer Chromatography and UV-Vis Spectrophotometry of Akar Kuning Stem Extract (Arcangelisia flava)." Borneo Journal of Pharmacy 1, no. 2 (2018): 72–76. http://dx.doi.org/10.33084/bjop.v1i2.367.

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This study aims to obtain the profile of Thin-Layer Chromatography (TLC) and Ultraviolet-Visible (UV-Vis) spectrophotometry from ethanol extract of akar kuning stems (Arcangelisia flava) from Central Kalimantan. The TLC method is used with the orientation phase of the combination of polar-non-polar solvents resulting from orientation, while ethanol is used as the solvent for UV-Vis spectrophotometers. TLC results showed the formation of 3 stains on a combination of polar solvents chloroform : methanol : water while in a non-polar solvent combination n-hexane : ethyl acetate did not show any st
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12

Gampa, Vijaya Kumar*, Sandhya M., Bharath Kumar G., Bhavitha M., D. Sameer M., and Tharaka P. "UV-VISIBLE SPECTROSCOPY: A REVIEW ON ITS PHARMACEUTICAL AND BIO-ALLIED SCIENCES." World Journal of Pharmaceutical Science and Research 3, no. 6 (2024): 81–95. https://doi.org/10.5281/zenodo.14252520.

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One significant and cutting-edge analytical tool employed in the pharmaceutical business over the past three decades is ultraviolet (UV) spectroscopy. The analytical technique measures the amount of monochromatic light absorbed by colorless substances in the near UV (200&ndash;400 nm) range. The processes required to ascertain the &ldquo;identity, strength, quality, and purity&rdquo; of such chemicals are included in the pharmaceutical analysis. It also covers the examination of raw materials and intermediates used in the pharmaceutical production process. A spectrophotometer covering the UV r
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13

Warmiati, Warmiati, and Wijayanti Wijayanti. "Reaction Stability Test of Hexavalent Chromium Complex with 1,5-Diphenylcarbazide in Analysis using UV Visible Spectrophotometer." Indonesian Journal of Chemical Research 11, no. 3 (2024): 218–22. http://dx.doi.org/10.30598/ijcr.2024.11-war.

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A reaction stability test of hexavalent chromium complex with 1,5-diphenyl carbazide in analysis using a UV Visible Spectrophotometer has been done in this study. This study aims to find out the colored complex stability for the reaction of chromium hexavalent and diphenyl carbazide in the analysis of hexavalent chromium using a UV Vis spectrophotometer in terms of time. The sample was measured in 540 nm of wavelength with 10, 30, 60, 90, 120, and 180-minute time intervals. Each interval was carried out with two times replications. There were no significant differences in the colored complex u
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14

Andulaai, Arlina Mayharty, Ruslan Ruslan, Hardi Ys., and Dwi Juli Puspitasari. "STUDI PERBANDINGAN ANALISIS VITAMIN E MINYAK SAWIT MERAH TERSAPONIFIKASI ANTARA METODE SPEKTROFOTOMETRI UV-VIS DAN KCKT." KOVALEN 3, no. 1 (2017): 50. http://dx.doi.org/10.22487/j24775398.2017.v3.i1.8233.

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A research about a comparative study of spectrophotometry UV-Vis and HPLC method for the analysis of vitamin E in saponified red palm oil has been done. This research aims to compare the results of analysis using Spectrophotometer UV - Vis and HPLC to determine the concentration of vitamin E in red palm oil previously saponified and extracted. HPLC analysis was carried out using an RP-18 column and mobile phase composed a methanol and water ( 86:14 ), with a flow rate of 1 ml/min and UV detection at 290 nm. For the Spectrophotometric UV-Vis analysis, hexane was used as a solvent and the wavele
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15

Ajikumar, Aruna B. "A Qualitative Analysis of Caffeine from Non-Alcoholic Beverages Using UV-Visible Spectrophotometer." International Journal for Research in Applied Science and Engineering Technology 13, no. 3 (2025): 2271–78. https://doi.org/10.22214/ijraset.2025.67788.

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Abstract: Caffeine is a widely consumed psychoactive compound found in various non-alcoholic beverages, including tea, coffee, and energy drinks. This study focuses on the qualitative analysis of caffeine using UV-Visible spectrophotometry, a rapid and reliable technique for detecting caffeine content. Samples were prepared using liquid-liquid separation method and analysed at their characteristic absorption wavelength, ensuring precise detection. The UV-Visible spectrophotometer, operating within a range of 200 nm to 400 nm, is sensitive to caffeine detection, providing precision and cost-eff
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16

Handayani, Eka Mardika, Muryanto Muryanto, Oman Zuas, and Yoki Yulizar. "Sol Gel Synthesis of CeVO4 using (Senna occidentalis (L.) Link) Leaves Extract: Characterization and Photocatalytic under Visible Light Irradiation." Jurnal Penelitian Pendidikan IPA 8, no. 4 (2022): 2053–57. http://dx.doi.org/10.29303/jppipa.v8i4.1764.

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CeVO4 as visible light driven photocatalyst was synthesized using Senna occidentalis (L.) Link leaves extract (SOE) by sol-gel method which can increase the degradation of malachite green (MG) under visible irradiation. The products were characterized using Fourier Transform Infrared Spectrophotometer (FTIR), X-ray Diffraction (XRD), and Field Emission Scanning Electron Microscope Energy Dispersive Spectroscopy (FESEM-EDS). UV–Vis Diffuse Reflectance Spectrophotometer (UV–Vis DRS) absorption spectrum indicated that the band gap of the CeVO4 is about 2,76 eV, and XRD patterns of the samples wer
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17

Ali, Saif M., and Logean Qadri Al-Karam. "Nano Gold Spheres and Rods: Synthesis and Characterization." Journal of Physics: Conference Series 2114, no. 1 (2021): 012032. http://dx.doi.org/10.1088/1742-6596/2114/1/012032.

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Abstract The present study aims to synthesised nano gold with chemical method with two shape sphere and rod with multi diameter and aspect ratio and then characterize the synthesised material with Atomic Force Microscope (AFM), Transmission Electron Microscope (TEM) and Ultraviolet-visible (UV–Visible ) spectrophotometer. The AFM and TEM characterization result of three samples for each sphere and rods show that the synthesised material are in nano range with diameter 31.9 nm, 36.19 nm and 79.37 nm respectively for nano sphere and diameters 39.9nm, 36.05 nm and 28 nm respectively for nano-rods
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18

Luo, Lingjing, Tianfeng Li, Xia Ran, Pan Wang, and Lijun Guo. "Probing Photocatalytic Characteristics of Sb-DopedTiO2under Visible Light Irradiation." Journal of Nanomaterials 2014 (2014): 1–6. http://dx.doi.org/10.1155/2014/947289.

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Sb-doped TiO2nanoparticle with varied dopant concentrations was synthesized using titanium tetrachloride (TiCl4) and antimony chloride (SbCl3) as the precursors. The properties of Sb-doped TiO2nanoparticles were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), fluorescence spectrophotometer, and Uv-vis spectrophotometer. The absorption edge of TiO2nanoparticles could be extended to visible region after doping with antimony, in contrast to the UV absorption of pure TiO2. The results showed that the photocatalytic activity of Sb-doped TiO2nanoparticles was much more
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19

Holland, Torrey, Ali Mazin Abdul-Munaim, Christopher Mandrell, Robinson Karunanithy, Dennis G. Watson, and Poopalasingam Sivakumar. "UV-Visible Spectrophotometer for Distinguishing Oxidation Time of Engine Oil." Lubricants 9, no. 4 (2021): 37. http://dx.doi.org/10.3390/lubricants9040037.

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Samples of gasoline engine oil (SAE 5W20) that had been exposed to various oxidation times were inspected with a UV-Visible (UV-Vis) spectrophotometer to select the best wavelengths and wavelength ranges for distinguishing oxidation times. Engine oil samples were subjected to different thermal oxidation periods of 0, 24, 48, 72, 96, 120, and 144 hours, resulting in a range of total base number (TBN) levels. Each wavelength (190.5 – 849.5 nm) and selected wavelength ranges were evaluated to determine the wavelength or wavelength ranges that could best distinguish among all oxidation times. The
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20

Kumar, Lalit, BS Suhas, Girish K. Pai, and Ruchi Verma. "Determination of Saturated Solubility of Naproxen using UV Visible Spectrophotometer." Research Journal of Pharmacy and Technology 8, no. 7 (2015): 825. http://dx.doi.org/10.5958/0974-360x.2015.00134.1.

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21

Naureen, Faiza, Yasar Shah, Shahnaz, and Fazli Khuda. "Determination of Saturated Solubility of Mirtazapine Using UV Visible Spectrophotometer." Pharmaceutical Communications 3, no. 01 (2024): 27–34. https://doi.org/10.55627/pharma.003.001.0799.

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Solubility is an important parameter for designing new drug formulations. Many drugs possess poor aqueous solubility hence, poor bioavailability. Many pharmaceutical industries face these issues while designing new drug entities. A new assessment revealed that about 70–90% of drug candidates are in the development stage, while up to 40% of the marketed products are water-insoluble which leads to low bioavailability, reduced therapeutic effects, and increased dose. Poor solubility is one of the major driving forces behind the development of numerous new drugs. There are various techniques to en
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22

Butt, N. Z., and F. Mohsin. "Determination of Sulphide in Arabian Seawater using UV- Visible Spectrophotometer." Nucleus 58, no. 1-4 (2022): 37–41. https://doi.org/10.71330/nucleus.58.01-4.1136.

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High concentration of sulphide in cooling water being utilized for condenser tubes cause stress cracking corrosion, microbially induced corrosion and pitting corrosion phenomenon. Fouling of condenser tube by sulphide is highly undesirable because it reduces the heat transfer capabilities, increases backpressure in the condenser thus affecting the turbine performance. In this work, a method was established for determination of sulphide ion in Arabian sea water using Ultraviolet-Visible Spectroscopy technique. The experiments conducted show precise values for sample (seawater) as well as for ab
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23

Iyere, Peter Abeta. "The Development of Innovative Laboratory Experiments with UV-Visible Spectrophotometer." Journal of Chemical Education 77, no. 2 (2000): 153. http://dx.doi.org/10.1021/ed077p153.

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24

Dhoundiyal, R. "Determination of carbohydrate levels in fruits by UV-Visible Spectrophotometer." Universities' Journal of Phytochemistry and Ayurvedic Heights II, no. 33 (2022): 1–3. http://dx.doi.org/10.51129/ujpah-2022-33-2(4).

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Fruits are very nutrient-dense and incredibly healthy. A rapid method was developed for the quantitative estimation of carbohydrates present in the different natural green leafy vegetables by UV-Visible Spectro-photometer. A study was carried out to determine the soluble carbohydrate content of some selected fruit which include apple, banana, custard apple, guava, papaya, grapes, pineapple, orange, pomegranate, kiwi fruit, mango, strawberries. Soluble carbohydrate was determined by Anthrone method Spectrophotometry at wavelength of 750 nm1. For most people, between 40% and 60% of total calorie
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25

Dilipbhai, Tripathi Shardul, Dr Suraj Singh Bhadoria, Dr Kosmika Makwana, Dr Poorav Desai, and Dr Parul Patel. "Spectrophotometric analysis of Azadirachta indica lotion by UV- visible spectrophotometer." International Journal of Pharmacognosy and Pharmaceutical Research 5, no. 1 (2023): 64–65. http://dx.doi.org/10.33545/26647168.2023.v5.i1a.55.

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26

Usharani, Balasubramanian, Govindhasamy Murugadoss, Manavalan Rajesh Kumar, Shaik Gouse Peera, and Varadharajan Manivannan. "Reduced Graphene Oxide–Metal Oxide Nanocomposites (ZrO2 and Y2O3): Fabrication and Characterization for the Photocatalytic Degradation of Picric Acid." Catalysts 12, no. 10 (2022): 1249. http://dx.doi.org/10.3390/catal12101249.

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Herein, reduced graphene-oxide-supported ZrO2 and Y2O3 (rGO-ZrO2 and rGO-Y2O3) nanocomposites were synthesized by hydrothermal method and used as the catalysts for photodegradation of picric acid. The structural and morphological properties of the synthesized samples were characterized by using an X-ray diffractometer (XRD), scanning electron microscope (SEM) with energy dispersive absorption X-ray spectroscopy (EDAX), UV-Vis spectrophotometer, Raman spectrophotometer and Fourier transformation infrared spectrophotometer (FT-IR) techniques. In this work, the wide band gap of the ZrO2 and Y2O3
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27

Khan, Sulaiman, David Newport, and Stéphane Le Calvé. "Gas Detection Using Portable Deep-UV Absorption Spectrophotometry: A Review." Sensors 19, no. 23 (2019): 5210. http://dx.doi.org/10.3390/s19235210.

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Several gas molecules of environmental and domestic significance exhibit a strong deep-UV absorption. Therefore, a sensitive and a selective gas detector based on this unique molecular property (i.e., absorption at a specific wavelength) can be developed using deep-UV absorption spectrophotometry. UV absorption spectrometry provides a highly sensitive, reliable, self-referenced, and selective approach for gas sensing. This review article addresses the recent progress in the application of deep-UV absorption for gas sensing owing to its inherent features and tremendous potentials. Applications,
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28

Wolf, Ursula, Sabine Klein, Annegret Sandig, and Stephan Baumgartner. "Investigating homeopathic preparations with light spectroscopy." International Journal of High Dilution Research - ISSN 1982-6206 11, no. 40 (2021): 117. http://dx.doi.org/10.51910/ijhdr.v11i40.584.

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Background&#x0D; &#x0D; Several series of experiments from our research group have shown ultraviolet (UV) light transmission of homeopathic preparations to slightly but significantly differ from controls. We now investigated whether visible and near infrared spectroscopy were also useful for exploring properties of homeopathic preparations.&#x0D; &#x0D; Materials and methods&#x0D; &#x0D; Homeopathic preparations of copper sulfate (CuSO4), hypericum and sulfur (S8) were produced in 30 sequential steps of 1:100 dilutions (c-preparations). As controls, succussed potentization medium was used. Tra
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29

Nikhil, Shrivastava, Verma Rajesh, Dholwani Kishorkumar, Sharma Pankaj, and Sharma Jaya. "Fourier Transform Infrared (FT-IR) & Ultraviolet-Visible (U.V.-Vis) Spectroscopic Studies on Curcuma Caesia (Kali Haldi)." American Journal of PharmTech Research 12, no. 05 (2022): 101–6. https://doi.org/10.5281/zenodo.7479298.

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ABSTRACT The objective of this study was to produce the rhizome of Curcuma caesia&#39;s ultraviolet-visible (UV-VIS) and Fourier transform infrared (FTIR) spectrum profiles. For the proximate analysis, the extracts were examined in both visible and ultraviolet light. The C. caesia crude extracts. Using a Perkin Elmer spectrophotometer, the rhizome was scanned at wavelengths between 200 and 800 nm, revealing the characteristic peaks. A Perkin Elmer spectrophotometer system was used for the FTIR method, which was used to identify the characteristic peak values and their functional groups. The C.
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30

Riazunnisa, K., N. Rajesh, T. Chandrasekhar, Prasanna V. Anu, and Chandra M. Subhosh. "Green Synthesis of Ceiba pentandra copper nanoparticles and their characterization." Research Journal of Chemistry and Environment 27, no. 1 (2022): 9–13. http://dx.doi.org/10.25303/2701rjce009013.

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In the present study, Ceiba pentandra (CP) aqueous leaf extract was used for the synthesis of copper nanoparticles (CuNPs). Techniques like UV-visible spectrophotometer, SEM, EDX, XRD and in vitro antioxidants assay were used to characterize synthesized nanoparticles. UV-Visible spectrophotometer showed absorbance peak at 310 nm. SEM analysis demonstrated that the CuNPs are spindly shaped structures with average size of about 62.63nm. XRD analysis revealed the face centered cubic like structures of CuNPs. Ceiba pentandra copper nanoparticles (CP-CuNPs) exhibited good in vitro antioxidant activ
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31

Chou, Chih Wei, Yueh Hsiung Kuo, You Cheng Hseu, Yung Shiu Chen, and Te Hsing Wu. "Study on the Preparation, Property and Drug Release Carrier of Chitosan-Based Nanoparticles for Cancer Treatment." Advanced Materials Research 284-286 (July 2011): 1800–1803. http://dx.doi.org/10.4028/www.scientific.net/amr.284-286.1800.

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In this paper, the effective nanocompoties (EFNCs) as drug carriers are prepared by grafting reaction of cationic chitosan (CS) and anionic tripolyphosphate (TPP) to encapsulate cancer therapeutic agents such as berberine (BB), KCY-24B…etc. These EFNCs were featured by ultra violet–visible-near infrared spectrophotometer (UV-VIS-NIR spectrophotometer), fourier transform infrared spectrophotometer (FT-IR), zetasizer, transmission electron microscope (TEM) and field-emission scanning electron microscope (FESEM). So we can obtain here the synthetic method, characterization, and functionality of t
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32

Suhud, Khairi, Dian Utari, Muhammad Syukri Surbakti, et al. "Development of TCS3200 Color Sensor Based on Arduino Uno Microcontroller for Determination of Capsaicin Level in Sauces." Sains Malaysiana 53, no. 12 (2024): 3339–48. https://doi.org/10.17576/jsm-2024-5312-17.

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A color sensor has been designed to measure the capsaicin level in commercial sauces. This system is designed using a TCS2300 color sensor as an input, and an Arduino Uno microcontroller with Integrated Development Environment (IDE) software as signal conditioning and signal processing. The measurement result will be compared to the standard Ultraviolet-Visible (UV-Vis) spectrophotometer method. The sauce samples were taken using a sampling technique, namely eight samples of sauces circulating in the city of Banda Aceh. The result showed that the levels of capsaicin using the TCS3200 color sen
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33

Shah, Manan, Dr Suraj Singh Bhadoria, and Dr Parul Patel. "Spectrophotometric analysis of Syzygium jambolanum olive oil by UV- visible spectrophotometer." International Journal of Pharmacognosy and Pharmaceutical Research 5, no. 1 (2023): 61–63. http://dx.doi.org/10.33545/26647168.2023.v5.i1a.54.

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34

Indrani, Madala *. J. Adlin Jino Nesalin E. Gopinath N. S. Ganesh Vineeth Chandy. "Determination Of Saturated Solubility Of Cyclobenzaprine HCL Using UV Visible Spectrophotometer." International Journal in Pharmaceutical Sciences 2, no. 10 (2024): 883–88. https://doi.org/10.5281/zenodo.13941994.

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The capacity of a medicine to dissolve in water is an essential component of drug development since it influences the drug&rsquo;s bioavailability, which is the rate at which the drug is absorbed into the bloodstream. Evaluating the drug&rsquo;s solubility is one of the most crucial pre-formulation parameters. The study aimed to investigate the solubility of Cyclobenzaprine HCL, under different pH conditions using UV visible spectrophotometer. The pH is a measure of the acidity or alkalinity of a solution. It can significantly influence the solubility of a drug. The experimental approach utili
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35

*Suvojit, Basak, Biswas Indrani, Mondal Esika, Karmakar Joydeep, Chakraborty Soumallya, and Bhattacharya Somenath. "VALIDATION OF ANALYTICAL METHODS TO ESTIMATE THE IBUPROFEN TABLET BY USING UV- VISIBLE SPECTROSCOPY." World Journal of Pharmaceutical Science and Research 4, no. 3 (2025): 270–77. https://doi.org/10.5281/zenodo.15562748.

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Pharmaceutical analysis is a critical discipline that determines the methodologies required toevaluate the identity, potency, quality, and purity of pharmaceutical compound (Ibuprofen). Spectrophotometry is a widely utilized analytical technique, particularly among industries, due to its cost-effectiveness and low maintenance requirements. This method measures the absorption of monochromatic light by colorless compounds within the near-ultraviolet spectrum, specifically in the range of 200 to 400 nm. The principle is based on Beer-Lambert&rsquo;s law. The working of a UV spectrophotometer invo
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Haider, Adawiya J., Maha A. Al-Kinani, and Sharafaldin Al-Musawi. "Preparation and Characterization of Gold Coated Super Paramagnetic Iron Nanoparticle Using Pulsed Laser Ablation in Liquid Method." Key Engineering Materials 886 (May 2021): 77–85. http://dx.doi.org/10.4028/www.scientific.net/kem.886.77.

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Fe@Au is a type of nanoparticle that contains magnetic Fe NPs core with a fine layer of Au NPs synthesized using the Pulsed Laser Ablation in Liquid (PLAL) Method. These Fe@Au NPs characterized by Atomic Force Microscope (AFM), Field Emission Scanning Electron Microscopy (FESEM), and UV-Visible Spectrophotometer. The result was obtained at different laser fluences (1.9, 2.2, and 2.5) J/cm2 with fixed pulse duration 5 ns, wavelength 532nm and number of pulse equal 100 pulsed. The obtained mean size of Fe@Au NPs at laser fluence (1.9, 2.2, and 2.5) J/cm2 was (63.65, 32.47 and 31.18) nm respectiv
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Agarwal, Surbhi, D. K. Dwivedi, Pooja Lohia, and Manoj Kumar Gupta. "Yttrium-induced tunable bandgap for optical data storage applications." RSC Advances 14, no. 41 (2024): 29812–26. http://dx.doi.org/10.1039/d4ra05458j.

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Linear and nonlinear optical and electronic properties of Te(1−x)(GeSe0.5)Yx thin films have been studied. Transmission spectra ranging from 500 to 2500 nm were obtained using a UV-visible spectrophotometer to calculate optical properties.
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Kuznetsov, V. N., N. I. Glazkova, R. V. Mikhaylov, and N. Serpone. "In situ study of photo- and thermo-induced color centers in photochromic rutile TiO2 in the temperature range 90–720 K." Photochemical & Photobiological Sciences 15, no. 10 (2016): 1289–98. http://dx.doi.org/10.1039/c6pp00163g.

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A novel cryostat-type accessory for a UV/Vis/NIR spectrophotometer was used to determine the relative positions of hole and electron traps within the band-gap of the visible-light-active TiO<sub>2</sub> rutile.
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Manasvi, Patil Abhay Desai. "Developing and Validating the Quantification of Zanamivir in Bulk Formulations using UV-Visible Spectrophotometry." International Journal of Pharma Research and Technology 1, no. 4 (2022): 1–7. https://doi.org/10.5281/zenodo.7476063.

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Zanamivir has been identified in drug compounds using a straightforward, precise, accurate, affordable, quick, and sensitive UV/visible spectrophotometric approach. According to ICH criteria, the devised approach was validated. UV/Vis spectrophotometry was used to analyse drugs, and the results were confirmed for linearity, precision, precision and specificity, limits of detection, and limits of quantitation. The solvent employed was 0.1N NaOH, and the wavelength that the drug&#39;s maximum absorbance fell within was 360 nm. With y=0.099x-0.0021 and a regression coefficient of R<sup>2</sup>=0.
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Jwo, Ching Song, Chien Chih Chen, Ho Chang, Sih Li Chen, and Chi Hsiang Lin. "A Study of Testing the Nanocatalyst Decomposition Efficiency of Methanol (CH3OH) and Ethanol (C2H6O)." Materials Science Forum 561-565 (October 2007): 1417–20. http://dx.doi.org/10.4028/www.scientific.net/msf.561-565.1417.

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This research carries out an inexpensive, rapid and novel exercise, which is applied to perform the photocatalyst decomposition effectiveness of Methanol and Ethanol in gaseous form. The major devices of this applicable measurement developed by this practice are only utilizing ultraviolet-visible spectrophotometer and quartz cuvette, and the experimental procedures are straightforward and speedy. In the conduct experiments, Methanol and Ethanol with a specific concentration is initially injected into an enclosed quartz cuvette. Then the cuvette is put in ultraviolet- visible spectrophotometer
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Sheikh, Wajiha Shabbir* Shilpi Chauhan. "A Review On Use Of UV Spectroscopy." International Journal in Pharmaceutical Sciences 2, no. 6 (2024): 1232–45. https://doi.org/10.5281/zenodo.12570882.

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One significant and cutting-edge analytical tool employed in the pharmaceutical business over the past three decades is ultraviolet spectroscopy. The analytical technique measures the amount of monochromatic light absorbed by colourless substances in the near ultraviolet (200&ndash;400 nm) range. The processes required to ascertain the "identity, strength, quality and purity" of such chemicals are included in the pharmaceutical analysis. It also covers the examination of raw materials and intermediates used in the pharmaceutical production process. A spectrophotometer covering the ultraviolet
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Shiundu, Paul M., and Adrian P. Wade. "Versatile IEEE-488 data acquisition and control routines for a diode array spectrophotometer." Journal of Automatic Chemistry 13, no. 3 (1991): 83–92. http://dx.doi.org/10.1155/s1463924691000160.

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The UV-visible diode array spectrophotometer is a work-horse instrument for many laboratories. This article provides simple data acquisition and control routines in Microsoft QuickBasic for a HP-8452A diode array spectrophotometer interfaced to an IBM PC/XT/AT, or compatible, microcomputer. These allow capture of full spectra and measure absorbance at one or several wavelengths at preset time intervals. The variance in absorbance at each wavelength is available as an option.
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Fabiani, Verry Andre, Febry Sutanti, Desti Silvia, and Megawati Ayu Putri. "GREEN SYNTHESIS NANOPARTIKEL PERAK MENGGUNAKAN EKSTRAK DAUN PUCUK IDAT (Cratoxylum glaucum) SEBAGAI BIOREDUKTOR." Indonesian Journal of Pure and Applied Chemistry 1, no. 2 (2018): 68. http://dx.doi.org/10.26418/indonesian.v1i2.30533.

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An environment friendly technique for green synthesis of silver nanoparticles has been reported. Silver nanoparticle have been synthesized using water extract of leaves of pucuk idat (Cratoxylum glaucum), commonly known as local Bangka plant. The flavonoid and tannin present in the extract act as reducing agent. AgNO3 0,05 M solution was reducing using the extract at room temperature by stirring. Color changing of the solution was detected at 30 minutes reaction time. The color tends to be darker by the increasing of reaction time. Various techniques used to characterize synthesized nanopartic
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TENKAYALA, DR SHOBHA RANI, Pagadala R. Sougandhi, Mekala Reddeppa, Sapara Sekhar Harini, and R. Gangadhara. "GREEN SYNTHESIS AND CHARACTERIZATION OF SILVER NANO PARTICLES BY USING PSIDIUM GUAJAVA LEAF EXTRACT." Journal of Drug Delivery and Therapeutics 8, no. 5-s (2018): 301–5. http://dx.doi.org/10.22270/jddt.v8i5-s.2025.

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In this study, rapid, simple approach was applied for synthesis of silver nanoparticles by using Psidium guajava aqueous leaf extract. The plant extract acts as both reducing agent and capping agent. The green synthesized silver nanoparticles were characterized by using physic-chemical techniques viz, UV-Visible spectroscopy, Fourier Transform Infrared Spectrophotometer [FTIR], Particle size analyser and Scanning electron microscopy. UV-Visible spectrophotometer showed absorbance peak in the range of 419nm.The compounds responsible for silver ions and the functional groups present in plant ext
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Amandeep, Kaur, and Singh Devinder. "Phytochemical Analysis of Crude Plant Extracts and Laboratory Synthesized Green Nanoparticles from Acacia auriculiformis A. Cunn. ex Benth." International Journal of Zoological Investigations 08, no. 02 (2022): 47–58. http://dx.doi.org/10.33745/ijzi.2022.v08i02.008.

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Recently the research and analysis of green nanoparticles (NPs) synthesized with plant extracts has been expanded significantly due to their biological activities. From the variety of agents used for nanoparticles synthesis, silver (Ag) is the most preferred due to its recommended use in medical field as best topical bactericides from ancient times. In the present study, crude bark extracts of Acacia auriculiformis A. Cunn. were used for nanoparticles synthesis and comparison of their biochemistry with crude extract was assessed by using biochemistry analytical techniques viz; UV-Visible spect
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Garg, Anuj Kumar. "Quantitative Analysis of Caffeine in the Green Tea, Black Tea and Soft Drink Using UV-Visible Spectrophotometer." Indian Journal of Science and Technology 14, no. 37 (2021): 2860–64. http://dx.doi.org/10.17485/ijst/v14i37.2241.

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Safni, Safni, Mechy Rezita Wahyuni, Khoiriah Khoiriah, and Yulizar Yusuf. "Degradation of Phenol By Photolysis Using N-doped TiO2 Catalyst." Molekul 14, no. 1 (2019): 6. http://dx.doi.org/10.20884/1.jm.2019.14.1.447.

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Phenol (C6H5OH) is a common contaminant in wastewater. In certain concentrations, phenol can inhibit the activity of microorganisms and give adverse effects tohumanhealth, such as liver and kidney damage, perfect heart rate, and lower blood pressure. In this study, phenol was degraded with andwithoutN-doped TiO2under photolysis UV-light (10 Watts, λ = 365 nm) and visible-light (13 watt Philips, lux= 1400, λ = 465-640 nm)irradiation. The reductionof phenol concentrationwas measured by a UV-Vis spectrophotometer at a wavelength 200-400 nm. Some parameters such as catalyst dose, irradiation times
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Scrob, Stancuta, Sevastita Muste, Crina Muresan, Anca Farcas, Sonia Socaci, and Romina Vlaic. "Evaluation of Extraction Methods for the Analysis of Carotenoids for Different Vegetable Matrix." Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca. Food Science and Technology 70, no. 2 (2013): 145. http://dx.doi.org/10.15835/buasvmcn-fst:9500.

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In this study, different solvents were used to achieve the maximum extractibility of total carotenoids. The extracted total carotenoids were estimated using UV- visible spectrophotometer. Carotenoids from vegetable matrix can be used as a food colorant, food additive, cosmetics, antioxidants and nutraceuticals.
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Lepot, Mathieu, Jean-Baptiste Aubin, and Jean-Luc Bertrand-Krajewski. "Accuracy of different sensors for the estimation of pollutant concentrations (total suspended solids, total and dissolved chemical oxygen demand) in wastewater and stormwater." Water Science and Technology 68, no. 2 (2013): 462–71. http://dx.doi.org/10.2166/wst.2013.276.

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Many field investigations have used continuous sensors (turbidimeters and/or ultraviolet (UV)-visible spectrophotometers) to estimate with a short time step pollutant concentrations in sewer systems. Few, if any, publications compare the performance of various sensors for the same set of samples. Different surrogate sensors (turbidity sensors, UV-visible spectrophotometer, pH meter, conductivity meter and microwave sensor) were tested to link concentrations of total suspended solids (TSS), total and dissolved chemical oxygen demand (COD), and sensors' outputs. In the combined sewer at the inle
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Ahmed, Anees, Abdur Rauf, Hassan A. Hemeg, et al. "Green Synthesis of Gold and Silver Nanoparticles Using Opuntia dillenii Aqueous Extracts: Characterization and Their Antimicrobial Assessment." Journal of Nanomaterials 2022 (March 26, 2022): 1–17. http://dx.doi.org/10.1155/2022/4804116.

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In the present study, gold (Au) and silver (Ag) nanoparticles (NPs) were synthesized from aqueous extracts of Opuntia dillenii, characterized by various advanced techniques and investigated for antibacterial and antifungal potential. Phytochemical screening of O. dillenii showed the presence of alkaloids, betacyanin, saponins, tannins, flavonoids, and phlobatannins. The characterizations of the synthesized metal NPs were performed such as UV-visible spectrophotometer, FTIR (Fourier transform infrared) spectrophotometer, SEM (scanning electron microscopy) and EDX (energy-dispersive X-ray). Thro
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