Log in

Relevant bibliographies by topics / Ultraviolet-Visible Spectrophotometry / Journal articles

To see the other types of publications on this topic, follow the link: Ultraviolet-Visible Spectrophotometry.

Journal articles on the topic 'Ultraviolet-Visible Spectrophotometry'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Ultraviolet-Visible Spectrophotometry.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Tellinghuisen, Joel. "Wavelength Anomalies in Ultraviolet-Visible Spectrophotometry." Applied Spectroscopy 66, no. 11 (2012): 1362–64. http://dx.doi.org/10.1366/12-06678.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Łobiński, Ryszard, and Zygmunt Marczenko. "Recent Advances in Ultraviolet-Visible Spectrophotometry." Critical Reviews in Analytical Chemistry 23, no. 1-2 (1992): 55–111. http://dx.doi.org/10.1080/10408349208051647.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Burgess, Chris. "Ultraviolet-visible spectrophotometry in pharmaceutical analysis." TrAC Trends in Analytical Chemistry 16, no. 5 (1997): XII. http://dx.doi.org/10.1016/s0165-9936(97)89790-7.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

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.

Full text

Abstract:

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

APA, Harvard, Vancouver, ISO, and other styles

5

CH., V. S. Gautam* N. Harika V. Balaji V. Srinivas Prasad. "METHOD DEVELOPMENT AND VALIDATION OF DACLATASVIR IN BULK & PHARMACEUTICAL DOSAGE FORM BY UV-VISIBLE SPECTROPHOTOMETRY." INDO AMERICAN JOURNAL OF PHARMACEUTICAL SCIENCES 05, no. 03 (2018): 1980–85. https://doi.org/10.5281/zenodo.1213232.

Full text

Abstract:

Objective: The objective of the present work is to develop a simple, efficient, and reproducible spectrophotometric method for the quantitative estimation of hepatitis-C drug - Daclatasvir in active pharmaceutical ingredient(API) form and in pharmaceutical dosage form Methods: The developed ultraviolet spectrophotometric method for the quantitative estimation of hepatitis-C drugs - Daclatasvir based on measurement of absorption at a wavelength maximum (λmax) of 317 nm using methanol as solvent. Results: The method was validated in terms of, precision, linearity, accuracy, and robustness

APA, Harvard, Vancouver, ISO, and other styles

6

Bosch Ojeda, C., and F. Sanchez Rojas. "Recent developments in derivative ultraviolet/visible absorption spectrophotometry." Analytica Chimica Acta 518, no. 1-2 (2004): 1–24. http://dx.doi.org/10.1016/j.aca.2004.05.036.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Dr.L.Satyanarayana*, and T.Padmini. "SPECTROPHOTOMETRIC DETERMINATION OF AMPRENAVIR IN FORMULATION SAMPLE." Indo American Journal of Pharmaceutical Sciences 04, no. 07 (2017): 2204–8. https://doi.org/10.5281/zenodo.838700.

Full text

Abstract:

A validate rapid, economical and sensitive visible spectrophotometric method has been developed for quantitative determination of amprenavir in bulk drug and tablet samples.This method is validated for irinotecan with chromogenic reagent namely bromo cresol green (BCG) at λ max 417. The calibration curve was linear over a concentration range of 5-40 µg/ml. The relative standard deviation (R.S.D) is less than 1% and average recovery was above 99.60%. Efficient visible spectrophotometric detection at λmax 417nm enabled determination of the drug with no interference from tablet excipients. The pr

APA, Harvard, Vancouver, ISO, and other styles

8

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.

Full text

Abstract:

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 (200–400 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

APA, Harvard, Vancouver, ISO, and other styles

9

Liu, Meichen. "The Application of Ultraviolet-Visible Spectrophotometry in Pharmaceutical Analysis." Applied and Computational Engineering 159, no. 1 (2025): 85–92. https://doi.org/10.54254/2755-2721/2025.23761.

Full text

Abstract:

Ultraviolet-visible (UV-Vis) spectrophotometry is an analytical technique based on the absorption characteristics of substances to light in the ultraviolet to visible spectrum. In the field of pharmaceutical analysis, this method is widely used due to its simplicity, high sensitivity, and low cost. This paper reviews the basic principles of UV-Vis technology and its applications in pharmaceutical analysis. By analyzing the absorption of light at specific wavelengths by drug molecules, this technique can provide important information about drug concentration, purity, and stability, which is cru

APA, Harvard, Vancouver, ISO, and other styles

10

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.

Full text

Abstract:

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

APA, Harvard, Vancouver, ISO, and other styles

11

Mazur, Ecaterina. "Analysis of spironolactone in compound powder by ultraviolet visible spectrophotometry." Moldovan Journal of Health Sciences 11, no. 4 (2024): 38–43. https://doi.org/10.52645/mjhs.2024.4.06.

Full text

Abstract:

ntroduction. Spironolactone (Spir) is a selective and competitive antagonist of aldosterone that increases the excretion of water and sodium while decreasing the excretion of potassium (K+ sparing diuretic). The substance was studied to develop qualitative and quantitative methods of analysis and to validate them according to documents regulating the quality of active pharmaceutical ingredients in the development of pharmaceutical forms. Material and methods. A new dosage form (powder) with Spir was developed and analyzed by a spectrophotometry method using a UV-Vis spectrophotometer (Agilent

APA, Harvard, Vancouver, ISO, and other styles

12

Haukka, Suvi. "Determination of chromium in catalysts by ultraviolet/visible spectrophotometry." Analyst 116, no. 10 (1991): 1055. http://dx.doi.org/10.1039/an9911601055.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

Davenport, John J., Jane Hodgkinson, John R. Saffell, and Ralph P. Tatam. "Noise analysis for CCD-based ultraviolet and visible spectrophotometry." Applied Optics 54, no. 27 (2015): 8135. http://dx.doi.org/10.1364/ao.54.008135.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

Mori, Sadao. "Derivative ultraviolet and visible spectrophotometry: Applications to polymer analysis." Journal of Applied Polymer Science 33, no. 6 (1987): 1923–31. http://dx.doi.org/10.1002/app.1987.070330605.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Barek, Jiří, and Jiří Zima. "Spectrophotometric and polarographic study of the efficiency of the chemical destruction of some antineoplastic pharmaceuticals." Collection of Czechoslovak Chemical Communications 54, no. 2 (1989): 361–69. http://dx.doi.org/10.1135/cccc19890361.

Full text

Abstract:

The efficiency of the chemical destruction of some antineoplastic pharmaceuticals was studied using visible and ultraviolet spectrophotometry and differential pulse polarography. Doxorubicin, Daunorubicin, Vincristine, Vinblastine, Methotrexate and Dichlomethotrexate are destroyed best by oxidatin with potassium permanganate, while some derivatives of N-nitrosourea (Lomustine, Chlorozotocin) are best destroyed by denitrosation with hydrobromic acid. The efficiency of the decomposition can readily be studied by spectrophotometry or differential pulse polarography.

APA, Harvard, Vancouver, ISO, and other styles

16

Kirtimaya, Mishra* Dr. K. Balamurugan1 Dr. R. Suresh1. "A REVIEW: AN APPROACH TOWARDS THE ANALYTICAL METHOD DEVELOPMENT FOR DETERMINATION OF NEWER DRUGS." INDO AMERICAN JOURNAL OF PHARMACEUTICAL RESEARCH 07, no. 01 (2017): 7353–60. https://doi.org/10.5281/zenodo.1006749.

Full text

Abstract:

In this present scenario for treating various diseases several new drugs were invented. Before launching to the market these drugs must undergo analytical validation process. In this review some of analytical techniques such as ultraviolet/ visible spectrophotometry, fluorimetry, capillary electrophoresis, and chromatographic methods (gas chromatography and high-performance liquid chromatography), LC-MS, GC-MS, SOLID PHASE EXTRACTION, NMR, MASS Spectrophotometry LC/MS/MS LC/UV X-ray crystallography were discussed.

APA, Harvard, Vancouver, ISO, and other styles

17

Litluechai, Arpaporn, Arreerat Prompa, Pikaned Uppachai, Wirat Jarernboon, Nutthaya Butwong, and Siriboon Mukdasai. "Highly sensitive colorimetric detection of Cd(ii) based on silica sol modified with dithizone and cationic surfactant." RSC Advances 14, no. 44 (2024): 32101–8. http://dx.doi.org/10.1039/d4ra03983a.

Full text

Abstract:

A colorimetric sensor for the determination of Cd2+ was fabricated by modifying silica sol with dodecyltrimethylammonium bromide (DTAB) and dithizone (DZ), changing the solution color from purple to orange prior to detection using ultraviolet-visible spectrophotometry and a customized Cd analyzer.

APA, Harvard, Vancouver, ISO, and other styles

18

Bosch Ojeda, C., and F. Sanchez Rojas. "Recent applications in derivative ultraviolet/visible absorption spectrophotometry: 2009–2011." Microchemical Journal 106 (January 2013): 1–16. http://dx.doi.org/10.1016/j.microc.2012.05.012.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Marczenko, Zygmunt. "Analytical absorption spectrophotometry in the visible and ultraviolet. The principles." Analytica Chimica Acta 242 (1991): 301. http://dx.doi.org/10.1016/0003-2670(91)87085-l.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Sánchez Rojas, F., and C. Bosch Ojeda. "Recent development in derivative ultraviolet/visible absorption spectrophotometry: 2004–2008." Analytica Chimica Acta 635, no. 1 (2009): 22–44. http://dx.doi.org/10.1016/j.aca.2008.12.039.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Rojas, F. "Derivative ultraviolet—visible region absorption spectrophotometry and its analytical applications." Talanta 35, no. 10 (1988): 753–61. http://dx.doi.org/10.1016/0039-9140(88)80179-6.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

D., Sathish Kumar Marri Mahesh* Shaik Sanjeeda Parveen Chalam Arju. "Recent Developments in UV-Visible Spectrophotometry for Sodium Benzoate Analysis in Beverages." International Journal of Pharmaceutical Sciences 3, no. 2 (2025): 2006–8. https://doi.org/10.5281/zenodo.14930132.

Full text

Abstract:

Sodium benzoate's antibacterial properties make it an extensively used beverage preservative. For its quantification, UV-visible spectrophotometry persists as one of the most popular and efficient approaches to analysis. Recent innovations have enhanced the approach's sensitivity, accuracy, and selectivity, strengthening reliability for routine analysis. Novel approaches for the preparation of samples, chemometric procedures, and sensor integration are among the most recent innovations in spectrophotometry using ultraviolet (UV) light for sodium benzoate estimation that will be discussed in th

APA, Harvard, Vancouver, ISO, and other styles

23

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.

Full text

Abstract:

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 (200–400 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 UV r

APA, Harvard, Vancouver, ISO, and other styles

24

N., Mohana Vamsi 1. *. Dr. Y. Padmanabha Reddy 2. Dr. R. Vijay Kumar 3. "METHOD DEVELOPMENT AND VALIDATION OF UV- VISIBLE SPECTROPHOTOMETRIC METHOD FOR THE DETERMINATION OF SOFOSBUVIR AND LEDIPASVIR IN PHARMACEUTICAL API AND ITS FORMULATION." Journal of Pharma Research 7, no. 6 (2018): 88–95. https://doi.org/10.5281/zenodo.1286319.

Full text

Abstract:

<strong><em>ABSTRACT</em></strong> <strong><em>Objective:</em></strong><em> The objective of the present work is to develop a simple, efficient, and reproducible spectrophotometric method for the quantitative estimation of hepatitis-C drugs - Sofosbuvir and Ledipasvir in its active pharmaceutical ingredient (API) form and its formulation. <strong>Methods: </strong>The developed ultraviolet spectrophotometric method for the quantitative estimation of hepatitis-C drugs - Sofosbuvir and Ledipasvir is based on measurement of absorption at a wavelength maximum (λmax) of 260 and 338 nm using

APA, Harvard, Vancouver, ISO, and other styles

25

N., Mohana Vamsi 1. *. Dr. Y. Padmanabha Reddy 2. Dr. R. Vijay Kumar 3. "DEVELOPMENT AND VALIDATION OF UV-VISIBLE SPECTROPHOTOMETRIC METHOD FOR ESTIMATION OF EMTRICITABINE AND TENOFOVIR IN BULK AND DOSAGE FORM." Journal of Scientific Research in Pharmacy 7, no. 6 (2018): 56–63. https://doi.org/10.5281/zenodo.1286317.

Full text

Abstract:

<strong><em>ABSTRACT</em></strong> <strong><em>S</em></strong><em>imple, rapid, sensitive, precise and specific UV spectrophotometric method for the determination of Emtricitabine (EMB) and Tenofovir (TEN) in bulk drug and pharmaceutical dosage form was developed and validated<strong>. </strong>A simple UV spectrophotometric method has been developed and validated with different parameters such as linearity, precision, repeatability, limit of detection (LOD), Limit of Quantification (LOQ), accuracy as per ICH guidelines. The method was found to be linear in the range of 25-150% for Tenofovir a

APA, Harvard, Vancouver, ISO, and other styles

26

Lin, Sheng-Feng. "Optical Design of a Quantitative Microvolume Nucleic Acid Spectrophotometer with Non-Optical Fiber and All Radiation-Hardened Lens Elements." Photonics 9, no. 1 (2021): 5. http://dx.doi.org/10.3390/photonics9010005.

Full text

Abstract:

The purity of the nucleic acid samples obtained by extraction/precipitation or adsorption chromatography must be verified with microvolume spectrophotometry to ensure a high success rate of the subsequent nucleic acid sequencing while exploring the trace rare nucleic acids in space exploration with in-situ life detection. This paper reports an optical design for a radiation-hardened quantitative microvolume spectrophotometer with all radiation-hardened lens elements for space exploration instruments by using a non-optical fiber optical path with radiation-hardened optical glass elements. The r

APA, Harvard, Vancouver, ISO, and other styles

27

LONNI, Audrey A. S. G., Ieda S. SCARMINIO, Lucas M. C. SILVA, and Dalva T. FERREIRA. "Numerical Taxonomy Characterization of Baccharis Genus Species by Ultraviolet-Visible Spectrophotometry." Analytical Sciences 21, no. 3 (2005): 235–39. http://dx.doi.org/10.2116/analsci.21.235.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Moreels, G., M. Gogoshev, V. A. Krasnopolsky, et al. "Near-ultraviolet and visible spectrophotometry of comet Halley from Vega 2." Nature 321, S6067 (1986): 271–73. http://dx.doi.org/10.1038/321271a0.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

de la Guardia, M., M. V. Galdú, J. Monzó, and A. Salvador. "Simultaneous determination of benzodiazepines by ultraviolet-visible spectrophotometry in micellar media." Analyst 114, no. 4 (1989): 509–12. http://dx.doi.org/10.1039/an9891400509.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Sommer, L., and G. Ackermann. "Quantitative characterization of procedures using ultraviolet and visible molecular absorption spectrophotometry." Pure and Applied Chemistry 58, no. 7 (1986): 1015–22. http://dx.doi.org/10.1351/pac198658071015.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

Mohd Fadli, Muhamad Eqmal Izman, Wan Elina Faradilla Wan Khalid, and Sharina Abu Hanifah. "Effect of Interference Study on Carrageenan Detection using Ultraviolet Visible Spectrophotometry." Sains Malaysiana 52, no. 6 (2023): 1711–21. http://dx.doi.org/10.17576/jsm-2023-5206-08.

Full text

Abstract:

Carrageenan is one of the most prominent hydrocolloids in the food industry used as a thickener and additive to improve the texture of food products. However, the detection of carrageenan in the food product is still limited as many interferences in the food matrix can interfere with the signal obtained. This research aims to study the effect of interference species on a simple and rapid quantitative detection of carrageenan by using a cationic dye which is methylene blue. Methylene blue will form a complex with carrageenan at 565 nm due to the hypsochromic shift of the methylene blue peak at

APA, Harvard, Vancouver, ISO, and other styles

32

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.

Full text

Abstract:

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

APA, Harvard, Vancouver, ISO, and other styles

33

Singh, Satyendra, Vivek Denial, and Manmeet Singh. "An Analysis on the UV-Visible Spectrophotometry Method." International Journal of Medical, Pharmacy and Drug Research 7, no. 4 (2023): 73–80. http://dx.doi.org/10.22161/ijmpd.7.4.6.

Full text

Abstract:

In the pharmaceutical industry, quality control is a necessary process. Pharmaceutical medicinal products must be advertised as safe, therapeutically active formulations with predictable qualities and performance. The main aim of the study is an analysis on the UV-Visible Spectrophotometry Method. UV spectroscopy was performed on Shimadzu 1700 uv spectrometer, 1cm cell quartz cuvette. Mode was set as UV mode and Detector wavelength was kept at 231 nm and 276 nm. A simple, rapid, accurate, sensitive and cost economical methodology for simultaneous estimation and precise ultraviolet radiation me

APA, Harvard, Vancouver, ISO, and other styles

34

Hoan, Bui Thi, Phuong Dinh Tam, and Vuong-Hung Pham. "Green Synthesis of Highly Luminescent Carbon Quantum Dots from Lemon Juice." Journal of Nanotechnology 2019 (May 2, 2019): 1–9. http://dx.doi.org/10.1155/2019/2852816.

Full text

Abstract:

Highly luminescent carbon dots (C-dots) were synthesized by the one-pot simple hydrothermal method directly from lemon juice using different temperatures, time, aging of precursors, and diluted solvents to control the luminescence of C‐dots. The obtained C-dots were characterized by high-resolution transmission electron microscopy, X-ray photoelectron spectroscopy, Fourier transform infrared spectrophotometry, dynamic light scattering, ultraviolet-visible spectrophotometry, and photoluminescent spectrophotometry. The results show that C‐dots had strong green light emission with quantum yield i

APA, Harvard, Vancouver, ISO, and other styles

35

Orsine, Eliane Maria de Almeida, and Jorge Luiz Seferin Martins. "Determination of Ranitidine Hydrochloride in Pharmaceutical Preparations by Ultraviolet and Visible Spectrophotometry." Analytical Letters 26, no. 9 (1993): 1933–41. http://dx.doi.org/10.1080/00032719308017441.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Moreels, G., M. Gogoshev, V. A. Krasnopolsky, et al. "Corrigendum: Near-ultraviolet and visible spectrophotometry of comet Halley from Vega 2." Nature 322, no. 6074 (1986): 90. http://dx.doi.org/10.1038/322090b0.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Kalivas, John H., Nancy Roberts, and Jon M. Sutter. "Global optimization by simulated annealing with wavelength selection for ultraviolet-visible spectrophotometry." Analytical Chemistry 61, no. 18 (1989): 2024–30. http://dx.doi.org/10.1021/ac00193a006.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Filipov, Danielle, Nayara Saty Murakami, Jeferson Ferreira de Deus, et al. "Processing and characterization of MAGIC-f gel with ultraviolet/visible light spectrophotometry." Research on Biomedical Engineering 36, no. 2 (2020): 99–105. http://dx.doi.org/10.1007/s42600-020-00059-7.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

V., Manoj Kumar, Sangeetha D., Sanjeeva Y., and John Joseph J. "Estimation of hydrogen peroxide content in Ophthalmic formulation using ultraviolet-visible spectrophotometry." Journal of Indian Chemical Society Vol. 92, Apr 2015 (2015): 472–74. https://doi.org/10.5281/zenodo.5595684.

Full text

Abstract:

School of Advanced Sciences, VIT University, Vellore-632 014, Tamilnadu, India <em>E-mail</em> : dsangeetha@vit.ac.in Analytical Research and Development, International Specialty Products Pvt. Ltd., Hyderabad-500 082, India The peroxide content in formulation products is crucial and needs to be monitored under various conditions since it may cause detrimental effect, especially when used in formulations containing drugs that are susceptible to oxidation. Moreover, determination of peroxide in such products is a prerequisite, listed both in the British as well as European Pharmacopoeia. The pur

APA, Harvard, Vancouver, ISO, and other styles

40

Mustarichie, Resmi, and Dudi Runadi. "Isolation and identification of flavonoids from avocado leaves (Persea americana Mill)." Asian Journal of Pharmaceutical Research and Development 9, no. 6 (2021): 34–40. http://dx.doi.org/10.22270/ajprd.v9i6.1035.

Full text

Abstract:

Leaves of avocado (Persea americana Mill) contains bioactive compounds that can act as natural antioxidants. This study was conducted to isolate and identify the flavonoid compounds of avocado leaves. Research stages includes maceration, fractionation, thin-layer chromatography analysis, isolation and purification of compounds also identification of isolates in two-dimensional thin-layer chromatography and by using three different types of solvents. Isolates were identified using ultraviolet-visible spectrophotometry and infrared spectrophotometry. From the results obtained one isolate FA6 sho

APA, Harvard, Vancouver, ISO, and other styles

41

Ma, Qing Lan, Bao Gai Zhai, and Yuan Ming Huang. "One-Step Synthesis of a Liquid Crystal TB4A at Room Temperature." Solid State Phenomena 181-182 (November 2011): 168–72. http://dx.doi.org/10.4028/www.scientific.net/ssp.181-182.168.

Full text

Abstract:

A rod-like liquid crystal (LC) N,N-(terephthalylidene) bis (4-n-butylaniline) (TB4A) was synthesized by one step at room temperature. The synthesized TB4A were investigated with nuclear magnetic resonance, fourier transform infrared spectrometer and ultraviolet-visible spectrophotometry, differential scanning calorimetry and polarizing optical microscopy. Our results demonstrated that the TB4A can form nematic, smectic A, smectic C, smectic F and smectic G LC phases.

APA, Harvard, Vancouver, ISO, and other styles

42

Mariani, Ria, Iwang S. Soediro, Setiadi Ihsan, Sinta Eva, and Desi Nuraisyah. "Antioxidant Activity and Antocyanin Derivatives Study of Red Katuk (Euphorbia cotinifolia L.) Leaves." Acta Pharmaceutica Indonesia 38, no. 2 (2013): 62–66. http://dx.doi.org/10.5614/api.v38i2.5212.

Full text

Abstract:

In this study, antioxidant activity and antocyanin derivatives study of extract of red katuk (Euphorbia cotinifolia L.) leaves was done. Antioxidant activity was done by DPPH (2,2-diphenyl 1-picrylhydrazyl) method using ultraviolet-visible spectrophotometer and thin layer chromatography. The result showed that methanol extract had antioxidant activity with IC50 value 33.13 Î¼g/mL. Vitamin C as comparative substance had IC50 value was 5.24 Î¼g/mL. From the acidified methanol extract, two anthocyanin derivatives have been isolated by preparative paper chromatography and characterized by ultravio

APA, Harvard, Vancouver, ISO, and other styles

43

Antonova, N. P., S. S. Prokhvatilova, E. P. Shefer, et al. "Determination of Arbutin in Herbal Medicinal Products." Bulletin of the Scientific Centre for Expert Evaluation of Medicinal Products 11, no. 2 (2021): 121–29. http://dx.doi.org/10.30895/1991-2919-2021-11-2-121-129.

Full text

Abstract:

Arbutin is the main active ingredient in many herbal medicinal products that have diuretic, antimicrobial, bactericidal, and antioxidant effects. Many of these products are mixtures of different herbal substances. Therefore, the approaches to quality control of HMPs can vary significantly. The aim of the study was to compare arbutin assay procedures used in quality control of arbutin-containing products. Materials and methods. Samples of the following HMPs were used in the study: monocomponent Bearberry Leaf and multicomponent Brusniver® (herbal mixture, powder). The test methods used were tit

APA, Harvard, Vancouver, ISO, and other styles

44

Ma, Qing Lan, Bao Gai Zhai, Rui Xiong, and Yuan Ming Huang. "Synthesis and Characterizations of a Rod-Like Liquid Crystal TBO16A." Solid State Phenomena 181-182 (November 2011): 135–38. http://dx.doi.org/10.4028/www.scientific.net/ssp.181-182.135.

Full text

Abstract:

A rod-like liquid crystal (LC) N,N-(terephthalaldehyde) bis (4-n-hexadecyloxyaniline) (TBO16A) was synthesized and investigated by nuclear magnetic resonance (NMR), fourier transform infrared (FTIR), differential scanning calorimetry (DSC), polarizing optical microscopy (POM) and ultraviolet-visible (UV-vis) spectrophotometry. The FTIR,1H NMR and UV-vis absorption data confirmed the molecular structure of TBO16A. Our results demonstrated that the TBO16A can form enantiotropic smectic A phase.

APA, Harvard, Vancouver, ISO, and other styles

45

CH., V. S. Gautam* K. Sai charan B. Swathi M. Mounika. "METHOD DEVELOPMENT AND VALIDATION OF IVACAFTOR IN BULK & PHARMACEUTICAL DOSAGE FORM BY UV-VISIBLE SPECTROPHOTOMETRY." INDO AMERICAN JOURNAL OF PHARMACEUTICAL SCIENCES o6, no. 04 (2019): 7476–81. https://doi.org/10.5281/zenodo.2637689.

Full text

Abstract:

<strong><em>Objective: </em></strong><em>The objective of the present work is to develop a simple, efficient, and reproducible spectrophotometric method for the quantitative </em><em>estimation of drug - Ivacaftor in active pharmaceutical ingredient (API) form and in pharmaceutical dosage form</em><strong><em>Methods: </em></strong><em>The developed ultraviolet spectrophotometric method for the quantitative estimation of Cystic fibrosis drug </em><em>Ivacaftor</em><em> - </em><em>based on measurement of absorption at a wavelength maximum (λmax) of 255  nm using Acetonitrile as solv

APA, Harvard, Vancouver, ISO, and other styles

46

CHEN, FangJian, HongJie SONG, HongBin GAO, ZhiJun WANG, SongWei LU, and WenLin YUAN. "Determination of total phenolic acid content in Ganmao’an granules by ultraviolet-visible spectrophotometry." Pharmaceutical Care and Research 13, no. 4 (2013): 285–87. http://dx.doi.org/10.5428/pcar20130415.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

Haukka, Suvi, and Ari Saastamoinen. "Determination of chromium and titanium in silica-based catalysts by ultraviolet/visible spectrophotometry." Analyst 117, no. 8 (1992): 1381. http://dx.doi.org/10.1039/an9921701381.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

Aikoh, Hiromi, and Takashi Shibahara. "Determination of mercury levels in human urine and blood by ultraviolet–visible spectrophotometry." Analyst 118, no. 10 (1993): 1329–32. http://dx.doi.org/10.1039/an9931801329.

Full text

APA, Harvard, Vancouver, ISO, and other styles

49

Zhu, Zhen, Wei-Gang Hong, Chin-Yuan Chen, and Ren-Jang Wu. "Novel Nanoarchitechtonics Olive-Like Pd/BiVO4 for the Degradation of Gaseous Formaldehyde Under Visible Light Irradiation." Journal of Nanoscience and Nanotechnology 20, no. 5 (2020): 2689–97. http://dx.doi.org/10.1166/jnn.2020.17430.

Full text

Abstract:

In this research, olive-like Pd/BiVO4 was successfully prepared through a facile hydrothermal coreduction method for the photocatalytic degradation of formaldehyde under visible light irradiation. The structure, composition, and optical properties of the as-prepared Pd/BiVO4 were characterized through X-ray diffraction, transmission electron microscopy, ultraviolet-visible spectrophotometry, X-ray photoelectron spectroscopy, and photoluminescence. In addition, the photocatalytic activities of Pd/BiVO4 were evaluated through the photodegradation of formaldehyde. The experimental results demonst

APA, Harvard, Vancouver, ISO, and other styles

50

Chakravarthy, V. Ashok, Sailaja Bbv, and Praveen Kumar A. "METHOD DEVELOPMENT AND VALIDATION OF ULTRAVIOLET-VISIBLE SPECTROSCOPIC METHOD FOR THE ESTIMATION OF HEPATITIS-C DRUGS - DACLATASVIR AND SOFOSBUVIR IN ACTIVE PHARMACEUTICAL INGREDIENT FORM." Asian Journal of Pharmaceutical and Clinical Research 9, no. 9 (2016): 61. http://dx.doi.org/10.22159/ajpcr.2016.v9s3.14616.

Full text

Abstract:

ABSTRACTObjective: The objective of the present work is to develop a simple, efficient, and reproducible spectrophotometric method for the quantitativeestimation of hepatitis-C drugs - Daclatasvir and Sofosbuvir in its active pharmaceutical ingredient (API) form.Methods: The developed ultraviolet spectrophotometric method for the quantitative estimation of hepatitis-C drugs - Daclatasvir and Sofosbuvir isbased on measurement of absorption at a wavelength maximum (λmax) of 317 and 261 nm using methanol as solvent.Results: The method was validated in terms of specificity, precision, linearity, a

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!