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Journal articles on the topic 'Visible spectrophotometric'

Author: Grafiati

Published: 5 June 2025

Last updated: 15 July 2025

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1

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.

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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

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2

Bhusari, Sachin, Rukayya Shaikh, and Pravin Wakte Pravin Wakte. "Development and Validation of Uv- Spectrophotometric Method for Estimation of Jatamansone in Nardostachys Jatamansi." International Journal of Pharmaceutical Research and Applications 10, no. 2 (2025): 220–28. https://doi.org/10.35629/4494-1002220228.

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Aim: This study aimed to develop and validate a simple, precise, and cost-effective UV- visible spectrophotometric method for the estimation of jatamansone in Nardostachys jatamansi extract. The analysis parameters were selected following the ICH Q2 (R1) guideline. Methods: Jatamansone solution was scanned across the UV-visible range to identify its wavelength of maximum absorbance. Calibration standards of jatamansone were prepared, and a concentration vs. absorbance calibration curve was plotted. The developed UV-visible spectrophotometric method was utilized to estimate jatamansone in stand

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3

G., KoteshwarRao* R.VijayaVani M.Shiresha B.Vidya I.Santhosh K. Rajeswar Dutt and K. N. V. Rao. "A NEW METHOD DEVELOPMENT AND VALIDATION OF AXITINIB BULK AND PHARMACEUTICAL DOSAGE FORM BY USINGUV-VISIBLE SPECTROSCOPY AS PER ICH GUIDELINES." INDO AMERICAN JOURNAL OF PHARMACEUTICAL SCIENCES 05, no. 03 (2018): 1704–10. https://doi.org/10.5281/zenodo.1210043.

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The objective of the present work was to develop a simple, efficient and reproducible spectrophotometric method for the quantitative estimation of Axitinib drug in its active pharmaceutical ingredient (API) form. The developed UV-Visible spectrophotometric method for the quantitative estimation of drug –Axitinib measurement of absorption at a wavelength maximum (λmax) of 260 nm using methanol as diluents. The method was validated as per the ICH guidelines. The proposed method can be successfully applied for the estimation of Axitinib in pharmaceutical dosage forms.The linearity dy

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4

R, Selvi S. "UV-Visible Spectrophotometric Method of Paracetamol Tablet Formulation." International Journal of Trend in Scientific Research and Development Volume-2, Issue-5 (2018): 1749–53. http://dx.doi.org/10.31142/ijtsrd17154.

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5

Suhartono, Eko, Ari Yunanto, Edi Hartoyo, et al. "UV-Visible Spectrophotometric as a Prospective Tool in Neonatal Sepsis." Indonesian Biomedical Journal 10, no. 1 (2018): 74. http://dx.doi.org/10.18585/inabj.v10i1.360.

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BACKGROUND: This study was aimed to employ the UV-Visible (UV-Vis) spectrophotometry techniques to detect the changes in the blood of neonatal sepsis (NS) subject for a deeper understanding in the pathomechanism of NS.METHODS: The cross-sectional study was conducted from February to May 2017 in the Neonatology Division, Department of Pediatric, Ulin General Hospital/Faculty of Medicine, Lambung Mangkurat University, Banjarmasin, South Kalimantan, Indonesia. Blood specimens were taken from newborns, of which 15 each of newborns at risk of sepsis and without risk of sepsis. Data were analyzed by

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6

Sachin Bhusari, Harshavardhan Karnik, and Pravin Wakte. "Development and validation of UV-spectrophotometric method for estimation of pterostilbene in Pterocarpus marsupium." World Journal of Advanced Research and Reviews 17, no. 1 (2023): 1123–31. http://dx.doi.org/10.30574/wjarr.2023.17.1.0116.

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Aim: To develop and validate a simple, precise and cost effective UV-visible spectrophotometric method for the estimation of pterostilbene in Pterocarpus marsupium extract. All the parameters of the analysis were chosen as per ICH Q2 (R1) guideline. Methods: Pterostilbene solution was scanned over UV-visible range for its wavelength of maximum absorbance. Various calibration standards of pterostilbene were prepared. Calibration curve of concentration vs. absorbance was plotted and developed UV – visible spectrophotometry method was used for estimation of pterostilbene in standardized Soxhlet a

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Majhi, Somyadeep, Saroj Kumar Patro, and P. Sudhir Kumar. "Visible Spectrophotometric Estimation of Aripiprazole." Asian Journal of Research in Chemistry 8, no. 12 (2015): 739. http://dx.doi.org/10.5958/0974-4150.2015.00119.4.

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8

Sachin, Bhusari, Karnik Harshavardhan, and Wakte Pravin. "Development and validation of UV-spectrophotometric method for estimation of pterostilbene in Pterocarpus marsupium." World Journal of Advanced Research and Reviews 17, no. 1 (2023): 1123–31. https://doi.org/10.5281/zenodo.8090612.

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<strong>Aim:</strong> To develop and validate a simple, precise and cost effective UV-visible spectrophotometric method for the estimation of pterostilbene in Pterocarpus marsupium extract. All the parameters of the analysis were chosen as per ICH Q2 (R1) guideline. <strong>Methods: </strong>Pterostilbene solution was scanned over UV-visible range for its wavelength of maximum absorbance. Various calibration standards of pterostilbene were prepared. Calibration curve of concentration vs. absorbance was plotted and developed UV – visible spectrophotometry method was used for est

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9

Setty K, Nagaraja, and Chakravarthi I. E. Chakravarthi I. E. "A UV-Visible Spectrophotometric Determination of atenolol in Pharmaceutical Formulations." International Journal of Scientific Research 2, no. 3 (2012): 31–32. http://dx.doi.org/10.15373/22778179/mar2013/11.

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10

Tejaswini, Kande, Dhekale Pallavi, Khatal Supriya, and Borude Priyanka. "Development and Validation of Analytical Methods for Simultaneous Spectrophotometric Determination of Pioglitazone and Glimepiride by Derivative Method." International Journal of Trend in Scientific Research and Development 4, no. 1 (2019): 822–25. https://doi.org/10.5281/zenodo.3609706.

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A simple, rapid UV Visible spectrophotometric method for the quantification of Pioglitazone hydrochloride and Glimepiride in bulk drug and tablet formulation was developed and validated. UV Visible spectrophotometric methods have been developed for the Derivative Spectrophotometric Method, of Pioglitazone and glimepiride in bulk and pharmaceutical dosage forms. the sampling wavelengths selected are 210 nm and 218 nm over the concentration ranges of 1.5 7.5 Âµg ml and 0.2 1.0 Âµg ml for pioglitazone and glimepiride respectively. Tejaswini Kande | Pallavi Dhekale | Supriy

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11

Reddy, C. M. Bhaskar, and N. Ananda Kumar Reddy. "UV VISIBLE SPECTROPHOTOMETRIC ESTIMATION OF EMTRICITABINE." International Research Journal of Pharmacy 7, no. 12 (2017): 42–45. http://dx.doi.org/10.7897/2230-8407.0712144.

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12

Reddy, C. M. Bhaskar, and N. Ananda Kumar Reddy. "UV VISIBLE SPECTROPHOTOMETRIC ESTIMATION OF GANCICLOVIR." International Research Journal of Pharmacy 7, no. 12 (2017): 46–49. http://dx.doi.org/10.7897/2230-8407.0712145.

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13

Selvi, S. R. "UV Visible Spectrophotometric Method of Paracetamol Tablet Formulation." International Journal of Trend in Scientific Research and Development 2, no. 5 (2018): 1749–53. https://doi.org/10.31142/ijtsrd17154.

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A novel, safe and sensitive method of spectrophotometric estimation in UV region has been developed for the assay of Paracetamol in its tablet formulation. The method have been developed and validated for the assay of Paracetamol using Methanol and water as diluents. Which does not shows any interference in spectrophotometric estimations. All the parameters of the analysis were chosen according to ICH Q2 R1 guideline and validated statistically using RSD and RSD along with neat chromate grams. Selvi S R | "UV-Visible Spectrophotometric Method of Paracetamol Tablet Formulation" Publis

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14

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.

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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

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15

Mazumder, Md Anisur Rahman, and Parichat Hongsprabhas. "Detection of Genistein in Soy Protein Isolate and Soymilk Powder by Spectrophotometric and Chromatographic Method." Journal of Food Science and Technology Nepal 11 (December 31, 2019): 69–73. http://dx.doi.org/10.3126/jfstn.v11i0.16920.

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Genistein proposed as a treatment for osteoporosis for postmenopausal women, elderly men, lowering cardiovascular disease and reduces hormone dependent cancers. Genistein also exerted inhibitory effect on lipid peroxidation induced in vitro by pro-oxidant agents on model and natural membranes on cultured cells and on low density lipoprotein. Genistein detection in soy products is very much important for Food Scientist. Gensitein can be detected by UV-Visible spectrophotometric and HPLC method. This study focused on the detection of genistein by HPLC and spectrophotometric methods. Genistein co

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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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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.

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<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

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18

Marpaung, Jon Kennedy, Zuhairiah Nasution, Cut Masyithah Thaib, and Junisan Siringoringo. "PENETAPAN KADAR FLAVONOID TOTAL EKSTRAK ETANOL JERAMI NANGKA (Artocarpus heterophyllus) SECARA SPEKTROFOTOMETRI-Visible." JURNAL FARMANESIA 7, no. 1 (2020): 48–52. http://dx.doi.org/10.51544/jf.v7i1.2766.

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Flavonoids are compounds consisting of 15 carbon atoms which are generally distributed in the plant world. Flavonoid compounds are a group of the largest phenolic compounds found in nature, these compounds are red, purple, and blue dyes as well as yellow dyes found in plants. This study aims to determine the total flavonoid content of the jackfruit straw ethanol extract by using the UV-VIS spectrophotometric method, this study includes sample preparation, simplicia phytochemical screening, and extract manufacture, then determine the total flavonoid content of the jackfruit straw ethanol extrac

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19

Gorumutchu, Giri Prasad, Venkata Nadh Ratnakaram, and Sireesha Malladi. "Ninhydrin Based Visible Spectrophotometric Determination of Gemigliptin." Oriental Journal of Chemistry 35, no. 1 (2019): 363–69. http://dx.doi.org/10.13005/ojc/350145.

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20

Milne, J. B. "Hexachlorotellurate(IV) hydrolysis equilibria in hydrochloric acid. Measurement by Raman and 125Te NMR spectroscopy and a reconsideration of earlier spectrophotometric results." Canadian Journal of Chemistry 69, no. 6 (1991): 987–92. http://dx.doi.org/10.1139/v91-144.

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Solutions of TeO2 (0.001 M) in HCl over a range of concentrations are shown to contain TeCl2(OH)2 in addition to TeCl62−and TeCl4(OH)−. The hydrolysis constants for TeCl62− and TeCl4(OH)− have been determined from a reconsideration of earlier UV-visible spectrophotometric results (1)[Formula: see text]The hydrolysis constants have also been determined by quantitative Raman spectroscopy (K1 = 2.21 (± 0.16) × 104 M3; K2 = 442 ± 57 M3). The agreement between K2 determined by the two methods is good but K1 from spectrophotometry is much larger than that from Raman studies. This disagreement is att

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21

Moujtahid, A., J. Zorec, and A. M. Hubert. "On the Characteristics of Circumstellar Envelopes in Be Stars near the Central Object." International Astronomical Union Colloquium 175 (2000): 506–9. http://dx.doi.org/10.1017/s0252921100056372.

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AbstractObserved visible energy distributions of Be stars were studied with analytic flux distributions produced by flattened circumstellar envelopes. The theoretical representation of emitted fluxes also allows for density distribution effects in the region where the visible continuum emission/absorption is raised. Two main conclusions were reached: (a) regions responsible for spectrophotometric ”shell” phases have, on average, steeper density distributions than those producing the spectrophotometric ”Be” phases; (b) the mean temperatures of the studied circumstellar envelope regions shows a

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22

R, Venkat Reddy *. Badugu Deepika N. Sunita M. Jaya Shankar SK. Nadeer K. Ravi Kumar Santosh Illendula G. Koteswar Rao K.N.V. Rao K. Rajeswar Dutt. "DEVELOPMENT AND VALIDATION OF UV-SPECTROSCOPIC METHOD FOR THE ESTIMATION OF METFORMIN IN BULK AND PHARMACEUTICAL DOSAGE FORM." INDO AMERICAN JOURNAL OF PHARMACEUTICAL SCIENCES 05, no. 04 (2018): 2124–30. https://doi.org/10.5281/zenodo.1214550.

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A new simple, accurate, rapid, precise, reproducible and cost effective spectrophotometric method for the quantitative estimation of Metformin in bulk and pharmaceutical dosage form. The developed visible spectrophotometric method for the quantitative estimation of Metformin is based on measurement of absorption at maximum wavelength 242 nm using Methanol as a solvent. The stock solution of Metformin was prepared, and subsequent suitable dilution was prepared with methanol to obtained standard curve. The standard solution of Metformin shows absorption maxima at 242 nm. The drug obeyed beer lam

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Moujtahid, A., J. Zorec, and A. M. Hubert. "Physical Properties of Circumstellar Envelopes in Be Stars Derived from their Long-term Spectrophotometric Variations." International Astronomical Union Colloquium 175 (2000): 510–13. http://dx.doi.org/10.1017/s0252921100056384.

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AbstractThe long-term visible spectrophotometric variations depicted by the following parameters: V the apparent visual magnitude; Φrb the gradient of the observed Paschen energy distribution and D the total Balmer discontinuity (BD) of 49 Be stars in different spectrophotometric phases (SPh-E: spectrophotometric phase where the second component of the BD is in emission; SPh-A: spectrophotometric phase where the second component of the BD is in absorption) were translated into CE physical parameters. These parameters are: R/R* the mean extent of the CE zone that produces the visible energy dis

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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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Raju, Nakka, P. Raveendra Reddy, P. Janaki Pathi, and N. Appala Raju. "Visible Spectrophotometric estimation of Simeprevir in Pharmaceutical Formulations." Research Journal of Pharmacy and Technology 11, no. 9 (2018): 4157. http://dx.doi.org/10.5958/0974-360x.2018.00763.1.

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Wang, Guozeng, Zhihao Jiang, Qing Xiao, Chang Jiang та Xian'ai Shi. "Visible spectrophotometric assay for characterization of ω-transaminases". Analytical Biochemistry 658 (грудень 2022): 114933. http://dx.doi.org/10.1016/j.ab.2022.114933.

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Wedler, F. C., B. W. Ley, and M. L. Moyer. "A Continuous Visible Spectrophotometric Assay for Aspartate Transcarbamylase." Analytical Biochemistry 218, no. 2 (1994): 449–53. http://dx.doi.org/10.1006/abio.1994.1205.

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Zhuk, Y. M., and S. O. Vasyuk. "Spectrophotometric determination of sotalol in tablets." Farmatsevtychnyi zhurnal, no. 1 (September 4, 2018): 49–55. http://dx.doi.org/10.32352/0367-3057.1.16.01.

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In this investigation a visible spectrophotometric method for the determination of sotalol based on the absorbance of colored product of the reaction between sotalol hydrochloride and bromcresol purple in acetone medium at 399 nm measurement was developed. The optimal conditions for the quantitative determination of sotalol hydrochloride in the content of pharmaceutical drugs were established. The stoichiometric relationship coefficients between sotalol hydrochloride and bromcresol purple were determined. The validation of the worked out procedure on such validated characteristics as linearity

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Paul, Jacob, Sherin O. Amna, K.* Anjana, K. Karthika, and M. Mridhul. "SPECTROPHOTOMETRIC ANALYSIS OF QUERCETIN IN FORMULATIONS." World Journal of Pharmaceutical Science and Research 4, no. 2 (2025): 147–53. https://doi.org/10.5281/zenodo.15111930.

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Kumar Sharma Rahul, Rajeev. "Analysis of St. John's Wort in Distilled Water by UV - Visible Spectrophotometric method." International Journal of Science and Research (IJSR) 12, no. 6 (2023): 63–65. http://dx.doi.org/10.21275/sr23529153103.

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Padmini, T., and L. Satyanarayana. "Spectrophotometric Determination of Amprenavir by Complex Formation in Bulk Drug and Formulation Samples." INTERNATIONAL JOURNAL OF PHARMACEUTICAL AND CLINICAL RESEARCH 09, no. 07 (2017): 521–24. https://doi.org/10.25258/ijpcr.v9i7.8785.

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A validate rapid, economical and sensitive visible spectrophotometric method has been developed for quantitative determination of amprenavir in bulk drug and formulation samples. This method is validated for irinotecan with chromogenic reagent 3-methyl benzothiazolinone hydrazine (MBTH). The calibration curve was linear over Beer’s concentration range of 25-350 µg/ml. The relative standard deviation is less than 1% and average recovery is above 99.80%. Efficient visible spectrophotometric detection at the respective absorption maxima enabled determination with no interference from tablet excip

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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.

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<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

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Nasr, Maha Salah, and Mohauman Mohammad Majeed Al-Rufaie. "UV–VISIBLE SPECTROPHOTOMETRIC DETERMINATION OF CHLORPROMAZINE HYDROCHLORIDE FROM PHARMACEUTICALS USING PLATINUM (IV) CHLORIDE." ACTA CHEMICA IASI 31, no. 1 (2023): 1–16. http://dx.doi.org/10.47743/achi-2023-1-0001.

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The goal of this study is to develop a simple and precise spectrophotometric method for the quantitative determination of chlorpromazine hydrochloride (CPZ.HCL) by its reaction with platinum tetrachloride (PtC) in aqueous solutions (acidic medium) using UV-Vis spectrophotometry. Accordingly, a blue complex was formed having a characteristic band at 533 nm. To obtain high sensitivity and good stability, optimal reaction conditions were investigated, like the influence of pH, temperature, time, and the optimal concentration of platinum tetrachloride, as well as calibration curves were generated.

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Dagdu, Kedar Vikas, Manoj Gadhave, Shubham Bhujbal, and Bhushan Shrinath. "Area Under Curve by UV Spectrophotometric Method for Determination Albendazole in Bulk." Journal of Drug Delivery and Therapeutics 9, no. 6 (2019): 47–50. http://dx.doi.org/10.22270/jddt.v9i6.3667.

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The aim of present investigation is to establish simple, precise, and rapid Spectrophotometric method for the quantification of Albendazole in Active Pharmaceutical Ingredient. In this, work is carried out to for estimation of Albendazole bulk by utilizing an Area under Curve (AUC) method using UV – Visible Spectrophotometry. The study is designed to validate the developed methods as per ICH guidelines. For this purpose the wavelength range between 200-400 nm was selected. Methanolic distilled water (50 ml methanol used for stock solution and serial dilution in 25 ml distilled water) was used

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Bhusari, Sachin Shivling, Gayatri Borse, and Pravin Wakte. "Development and Validation of UV-Visible Spectrophotometric method for simultaneous estimation of Etoposide and Picroside-II in bulk and pharmaceutical formulation." Journal of Drug Delivery and Therapeutics 9, no. 3 (2019): 257–62. http://dx.doi.org/10.22270/jddt.v9i3.2868.

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Aim: To develop and validate a simple, precise, accurate, and sensitive UV-visible spectrophotometric method for the simultaneous estimation of Etoposide (ETO) and Picroside-II (PK-II) in a bulk and pharmaceutical formulation according to the ICH guidelines. Methods: The absorption spectra of ETO and PK-II were carried out over the range of 200-800 nm, and absorption maxima were determined. Multiple calibration standards were prepared of both the drugs separately, and absorbance were recorded at respective λmax. Calibration curve were plotted and the linear responses were studied. Various anal

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BC, Semwal, Tiwari R, Tiwari G, and Babu KA. "UV Spectrophotometric Studies of Ashwagandha, Chamomile and Fever Few Flowers Oil: Method Development and Validation." INTERNATIONAL JOURNAL OF DRUG DELIVERY TECHNOLOGY 14, no. 04 (2024): 1198–208. https://doi.org/10.25258/ijddt.14.4.37.

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Using the UV-Vis spectrophotometry technique is a simple way to estimate or quantify any pharmacological compounds. Present research focused on development and validation of UV-visible method for feverfew (FFW), chamomile (CMM), and ashwagandha (AGA) flower oils. This method was also applied in conjunction with the UV spectrophotometric analysis of AGA, CMM, and FFW. Method validation parameters revealed that specificity, accuracy, linearity, precision and robustness met the acceptance criteria of ICH standards. It was concluded that developed. UV spectroscopic method proved to be sufficiently

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Santhosh, Illendula* Thota Sumanjali D.Sandhya N.Lavanya G. Koteswar Rao K.N.V. Rao K. Rajeswar Dutt. "METHOD DEVELOPMENT AND VALIDATION OF AFATINIB IN BULK AND PHARMACEUTICAL DOSAGE FORM BY UV-SPECTROSCOPIC METHOD." INDO AMERICAN JOURNAL OF PHARMACEUTICAL SCIENCES 05, no. 03 (2018): 1569–75. https://doi.org/10.5281/zenodo.1206381.

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A new simple, accurate, rapid, precise, reproducible and cost effective spectrophotometric method for the quantitative estimation of Afatinib in bulk and pharmaceutical dosage form. The developed visible spectrophotometric method for the quantitative estimation of Afatinib is based on measurement of absorption at maximum wavelength 246 nm using Sodiumcitrate with Water as a solvent. The stock solution of Afatinib was prepared, and subsequent suitable dilution was prepared in distilled water to obtained standard curve. The standard solution of Afatinib shows absorption maxima at 246 nm. The dru

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Ismail, Muhammad. "Spectrophotometric and Spectrofluorimetric Quantification of Urea via Silver Nanoparticles Prepared by Wet Chemical Method." Catalysis Research 03, no. 01 (2023): 1–16. http://dx.doi.org/10.21926/cr.2301014.

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Silver nanoparticles have been utilized in an easy, sensitive, and effective approach through spectrophotometry and spectrofluorimetry to quantify urea in water samples. Here, 1,3-di-(1H-imidazole-1-yl) -2-propanol (DIPO) was employed to stabilize Ag NPs produced from the reduction of aqueous silver nitrate by sodium borohydride (NaBH<sub>4</sub>). Beer-Lambert's law was applied for determination using the complexation of Ag NPs with urea molecules. The results show urea can be assessed concurrently with good results and percent recoveries. The UV-visible absorbance and fluorescenc

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Deepak, Chandra Sharma, Rajan G., and Tangri |. Preeti Kothiyal Pranshu. "Method Devlopment of Apremilast API in Methanol by UV Visible Spectroscopy." International Journal of Trend in Scientific Research and Development 2, no. 3 (2018): 1–3. https://doi.org/10.31142/ijtsrd9675.

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A simple, precise, accurate, cost effective stability indicating UV Spectrophotometric method has been developed for the estimation of Apremilast. Apremilast shows highest max at 340 nm. Beers law linearity response was found over a concentration range of 10 60 µg mL with good correlation coefficient r2 = 0.9994 . The Proposed spectrophotometric method was validated as per the ICH Q1A R2 guidelines. Hence this method can be safely be employed for the routine quality control analysis of Apremilast. Deepak Chandra Sharma | G. Rajan | Pranshu Tangri | Preeti Kothiyal "Method Devlopment

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Paim, Clésio S., Fernanda Führ, Diogo S. Miron, Martin Steppe, and Elfrides E. S. Schapoval. "Highly Selective Colorimetric Method to Determine Gemifloxacin Mesylate in the Presence of a Synthetic Impurity." Journal of AOAC INTERNATIONAL 97, no. 1 (2014): 94–98. http://dx.doi.org/10.5740/jaoacint.10-428.

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Abstract A simple visible spectrophotometric method wasdeveloped for the determination of gemifloxacin mesylate (GFM) in tablets. The method was based onthe formation of a yellow ion-pair complex between the basic nitrogen of the drug and the sulfonphthalein acid dye in phthalate buffer. The method was validated by the study of its specificity, linearity, precision, accuracy, and robustness. Theassay was compared with an LC and a microbiological method, and the analysis of variance showed nosignificant difference between the methods (P &gt; 0.05). The results demonstrated that the visible

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S., V. Murali Mohan Rao, Rama Subba Reddy T., Nageswara Rao I., and S. P. Sastry C. "Three simple visible spectrophotometric methods for the assay of cetirizine." Journal of Indian Chemical Society Vol. 80, Oct 2003 (2003): 943–45. https://doi.org/10.5281/zenodo.5839552.

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Department of Physical and Nuclear Chemistry & Chemical Oceanography, Department of Organic Chemistry, Foods, Drugs and Water, School of Chemistry, Andhra University, Visakhapatnam-530 003, India <em>E-mail : </em>svmurali @rediffmai.com <em>Manuscript received / November 2002, accepted 4 March 2003</em> Three simple and sensitive spectrophotometric methods (A-C) for the assay of cetirizine (as dihydrochloride, CET) are proposed. Methods A and B are based on the formation of ion-association complex involving carboxylic acid group of CET and the basic dyes, safranin-O (SFN-O, method A), met

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Mohammed, Abdul Moiz. "UV-Visible Spectrophotometric Method and Validation of Organic Compounds." European Journal of Engineering Research and Science 3, no. 3 (2018): 8. http://dx.doi.org/10.24018/ejers.2018.3.3.622.

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Absorption and emission of radiation by a compound at different wavelengths in visible and ultra violet region forms an analytical tool for identification of organic compounds. Researchers and scientists from different fields of chemistry and life sciences are constantly in search of an alternate ways to analyze the chemical reactions involving organic and inorganic compounds. The UV-Visible spectroscopic technique serves as an important and simple technique in finding concentration of molecules in a solution, identification the functional groups identification of conjugated organic compounds.

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Mohammed, Abdul Moiz. "UV-Visible Spectrophotometric Method and Validation of Organic Compounds." European Journal of Engineering and Technology Research 3, no. 3 (2018): 8–11. http://dx.doi.org/10.24018/ejeng.2018.3.3.622.

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Absorption and emission of radiation by a compound at different wavelengths in visible and ultra violet region forms an analytical tool for identification of organic compounds. Researchers and scientists from different fields of chemistry and life sciences are constantly in search of an alternate ways to analyze the chemical reactions involving organic and inorganic compounds. The UV-Visible spectroscopic technique serves as an important and simple technique in finding concentration of molecules in a solution, identification the functional groups identification of conjugated organic compounds.

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Ren, Hongji, Byron Kratochvil, and Xiwen He. "Spectrophotometric determination of free, ionized, metal ion concentrations in solution by an indicator increment method. Application to the determination of free Mg2+ with calmagite." Canadian Journal of Chemistry 73, no. 2 (1995): 296–302. http://dx.doi.org/10.1139/v95-040.

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A spectrophotometric method, called the Indicator Increment Method, is described in which varying amounts of a complexing indicator are added to a sample and the visible spectra recorded after each addition. Through multiple equilibrium calculations the free metal ion concentration, as well as total metal and total ligand concentrations, can be estimated in systems that contain a single metal ion and one ligand. The technique was tested successfully for the determination of free magnesium in the presence of NTA, phosphate, or oxalate using calmagite as indicator. The method requires the approx

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Nesalin, J. Adlin Jino, Rakshitha S, Ganesh N S, and Vineeth Chandy. "Determination of Naringenin Saturation Solubility in Diverse Dissolution Medium Using UV-Visible Spectrophotometric Analysis." International Journal of Research Publication and Reviews 5, no. 9 (2024): 3405–10. http://dx.doi.org/10.55248/gengpi.5.0924.2703.

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Suganthi, A., HB Sivakumar, SC Vijayakumar, P. Ravimathi, and TK Ravi. "Visible spectrophotometric determination of valdecoxib in tablet dosage forms." Indian Journal of Pharmaceutical Sciences 68, no. 3 (2006): 373. http://dx.doi.org/10.4103/0250-474x.26685.

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., Pawar V. T., and Pishawikar S. A. . "Visible spectrophotometric determination of aceclofenac from tablet dosage form." Journal of Current Pharma Research 1, no. 1 (2010): 49–54. http://dx.doi.org/10.33786/jcpr.2010.v01i01.012.

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Gavat, Cristian Catalin, Leonard Vasile Vasilescu, and Afrodita Doina Marculescu. "Visible Spectrophotometric Analysis Method of Sodium Metamizole in Tablets." Revista de Chimie 70, no. 2 (2019): 475–82. http://dx.doi.org/10.37358/rc.19.2.6938.

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The aim of this research was to exactly quantify pure sodium metamizole from tablets , using a spectrophotometric analysis in Visible range. The method applied has been subjected to a validation protocal which consisted in analyzing the following parameters: linearity of the method, detection limit (LD) , quantitation limit (LQ), Sandell�s sensitivity, interference of excipients, stability of prepared solutions, method and system precision, accuracy of the method. Following actual dosing, pure sodium metamizole amount in tablet of pharmaceutical was found to be 477.477 mg assigned to a percent

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Gorumutchu, Giri Prasad, Venkata Nadh Ratnakaram, and Kishore V. N. V. "Visible Spectrophotometric Determination of Gemigliptin using Charge Transfer Complex." Oriental Journal of Chemistry 35, no. 2 (2019): 694–99. http://dx.doi.org/10.13005/ojc/350226.

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A visible spectrophotometric method was developed and validated for the determination of gemigliptin present in bulk drug and tablet formulation. It involves an indirect method of charge transfer complex formation in presence of NBS, metol and suphanilic acid. Gemigliptin was subjected to oxidation with excess amount of oxidant (NBS) and the unconsumed NBS oxidizes metol to give p-N-methylbenzoquinone monoamine (PNMM) which in turn forms a charge transfer complex with sulphanilic acid. Then validated the above developed method as per the current ICH guidelines. An excellent correlation coeffic

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Benetton, S. "Visible spectrophotometric and first-derivative UV spectrophotometric determination of rifampicin and isoniazid in pharmaceutical preparations." Talanta 47, no. 3 (1998): 639–43. http://dx.doi.org/10.1016/s0039-9140(98)00111-8.

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