scholarly journals Development of a Method of Analysis of Ofloxacin in the Complex Preparation "Ofloxazol"

2021 ◽  
Vol 10 (3) ◽  
pp. 70-75
Author(s):  
T. A. Kobeleva ◽  
A. I. Sichko ◽  
A. I. Zamaraeva ◽  
N. S. Bessonova
Keyword(s):  
Quantitative Determination ◽  
Dosage Form ◽  
Inflammatory Diseases ◽  
Statistical Processing ◽  
Chemotherapeutic Agents ◽  
Spectrophotometric Analysis ◽  
Uv Spectrophotometry ◽  
Treatment And Prevention ◽  
Complex Preparation

Introduction. The creation of new effective antibacterial drugs for the treatment and prevention of purulent-inflammatory diseases is an urgent task of modern pharmacy. Active use in the treatment of purulent infection is found by chemotherapeutic agents from the class of fluoroquinolones, which include ofloxacin.Aim. Development of a method for the quantitative determination of ofloxacin in the complex preparation "Ofloxazol".Materials and methods. For the analysis, the substance ofloxacin, titanium-containing gel "Tizol", solutions of ofloxacin on 95 % ethanol, hydrochloric acid 0.01 mol/l, ointment under the conditional name "Ofloxazol" containing 0.5 % of the drug in the gel "Tizol" were used. The study was carried out by near-UV spectrophotometry.Results and discussion. When studying the absorption spectra, it was found that for the quantitative spectrophotometric analysis of ofloxacin, it is rational to use the wavelength range of 275-320 nm (λmax = 294 nm). Statistical processing of the analysis results showed that the relative error of quantitative determination does not exceed ±1.66 %. The sensitivity of the determination of ofloxacin is 0.245 mcg/ml at A(min) = 0.02. The developed method is validated. Its specificity, linearity, correctness and precision are confirmed. According to the calibration schedule, the content of ofloxacin in the soft dosage form is determined, it is in the range of 0.0483-0.0562 g, which corresponds to the permissible deviations.Conclusion. The conducted studies allowed us to develop and propose a method for the quantitative determination of ofloxacin in the ointment "Ofloxazol", obtained on a titanium-containing basis. The method allows you to evaluate the quality of manufacturing the dosage form, including setting the content of the drug with an error that does not exceed the standard deviations.

scholarly journals Spectrophotometric quantitative analysis of metronidazole and itraconazole in a combined preparation made on the basis of Tizol gel

2020 ◽  
Vol 20 (5-6) ◽  
pp. 157-163
Author(s):  
Anna I. Zamaraeva ◽  
Natalya S. Bessonova ◽  
Tatyana A. Kobeleva ◽  
Alik I. Sichko
Keyword(s):  
Quantitative Analysis ◽  
Quantitative Determination ◽  
Spectrophotometric Determination ◽  
Spectrophotometric Method ◽  
Dosage Form ◽  
Statistical Processing ◽  
Ultraviolet Region ◽  
System Of Equations ◽  
Base Materials

Actuality. Nowadays, the problems of effectiveness and accessibility of dermatoprotective therapy and prevention of dermatological diseases are urgent. The complex use of metronidazole in combination with drugs of other pharmacological groups is particularly relevant and promising. The dosage form consisting of 0.1 g of Itraconazole, 0.1 g of metronidazole and Tizol gel up to 10 g, termed by us Metroitraconazole, can be used in dermatology, ophthalmology and gynecology as a bactericidal and antifungal agent. The aim of the study is to develop the method for the quantitative spectrophotometric determination of metronidazole and itraconazole in a soft dosage form on a titanium-containing base. Materials and methods. For the analysis, we used substances, ethanol solutions of Metronidazole and Itraconazole, an ointment with the conditional name Metroitraconazole, containing 1.0% of the preparations in the Tizol gel. The study was carried out by spectrophotometry in the ultraviolet region, using spectrophotometer SF-2000 (Russia). Results. The study of the absorption spectra and statistical processing of the finding demontstrated that spectrophotometric determination of Itraconazole and metronidazole demanded the wavelengths of 262 and 312 nm, with a relative error of 1.52% and 1.67%, respectively. As a result of the analysis of the soft dosage form, it was determined that the content of metronidazole calculated with the use of Firordt method and a simplified system of equations ranged 0.0987-0.1057 g, and Itraconazole ranged 0.0925-0.1055 g. These data conformed the acceptance criteria. Conclusion. The conducted research allowed us to develop and propose a method for the quantitative determination of itraconazole and metronidazole in Metroitraconazole ointment by means of spectrophotometric method. It allowed us to determine the content of drugs in the dosage form with an error not exceeding the standard deviations.

scholarly journals Development and validation of new analytical method for the estimation of fluoxetine in bulk and dosage form by UV spectrophotometry

2019 ◽  
Vol 1 (2) ◽  
pp. 36-39
Author(s):  
Uday sankar raju K ◽  
Vimalakkannan T ◽  
K. Ravindra Reddy ◽  
P. Naveena ◽  
R. Riharika raj ◽  
...  
Keyword(s):  
Standard Deviation ◽  
Quantitative Determination ◽  
Dosage Form ◽  
Dosage Forms ◽  
Uv Spectrophotometry ◽  
Pharmaceutical Dosage Forms ◽  
Precise Method ◽  
Absorbance Measurement ◽  
Development And Validation

A simple, rapid and precise method is developed for the quantitative determination of Fluoxetine in combined pharmaceutical-dosage forms. The method was based on UV Spectrophotometric determination of Fluoxetine drug using Beer-Lamberts Law. It involves absorbance measurement at 224 nm (λmax of Fluoxetine) in water. For UV Spectrophotometric method, linearity was obtained in concentration range of 5-30 mcg/ml with regression 0.999 for Fluoxetine respectively. Recovery was in the range of 98 -102%; the value of standard deviation and %R.S.D was found to be < 2 shows high precision of the method..

scholarly journals VALIDATION METHODS FOR QUANTITATIVE DETERMINATION OF 4,4'-DIMETHYL-7,7'-ETHYLENDIOXY-2H-1-DIBENZOPYRAN2,2'-DIONE SUBSTANCE

2019 ◽  
Vol 8 (1) ◽  
pp. 59-65
Author(s):  
C. B. Nguyen ◽  
A. Z. Abyshev
Keyword(s):  
Quantitative Determination ◽  
Active Component ◽  
Hplc Method ◽  
Uv Spectrophotometry ◽  
Secondary Immunodeficiency ◽  
Eligibility Criteria ◽  
Synthetic Compounds ◽  
Treatment And Prevention ◽  
Accuracy And Precision

Introduction. One of the most promising synthetic compounds of coumarin derivatives is immunacor-4,4'-dimethyl-7,7'-ethylenedioxy-2H-1- dibenzopyran-2,2'-dione. As a result of preclinical studies, it has been shown that it is promising in medical practice as an immunomodulator for the treatment and prevention of secondary immunodeficiency diseases. Aim. The objective of this work is to develop methods for HPLC and UV spectrophotometry to determine the quantitative determination of the immunacor substance and to study the complex of validation characteristics of the developed methods. Materials and methods. Quantitative analysis of the substance was carried out by UV-Spectrophotometry and HPLC. Validation procedures were performed on parameters: specificity, linearity, accuracy and precision in accordance with the requirements of FP XIV. Results and discussion. Validation characteristics have been determined, and their compliance with the relevant eligibility criteria has been experimentally verified. Conclusion. Methods for quantitative determination of the active component in 4,4'-dimethyl-7,7'-ethylenedioxy-2H-1-dibenzopyran-2,2'-dione (immunacor) pharmaceutical substance by HPLC and UV spectrophotometry has been developed. It is established that methods are specific, accurate, precise and linear in the analytical field. The precision HPLC method far exceeds the UV-spectrophotometry.

Quantitative Determination of Amlodipine Besylate in Tablets of Combined Antihypertensive Preparations by UV Spectrophotometry

2018 ◽  
Vol 12 (3) ◽  
pp. 14-18
Author(s):  
Sirazhudin Dzh. Mekhtikhanov ◽  
◽  
Dzhamilya P. Babaeva ◽  
Kusum M. Magomedova ◽  
Patimat A. Gamzatova ◽  
...  
Keyword(s):  
Quantitative Determination ◽  
Uv Spectrophotometry ◽  
Amlodipine Besylate

scholarly journals Development of an Ultraviolet Spectrophotometric Method for the Determination of Ceftiofur Sodium Powder

2009 ◽  
Vol 92 (6) ◽  
pp. 1673-1680 ◽  
Author(s):  
marinês J E Souza ◽  
Natália Canedo ◽  
Paulo S Souza Filho ◽  
Ana M Bergold
Keyword(s):  
Spectrophotometric Method ◽  
Spectrophotometric Analysis ◽  
Uv Spectrophotometry ◽  
Accuracy And Precision ◽  
Significant Difference ◽  
Student’S T ◽  
Ceftiofur Sodium ◽  
Interday Precision ◽  
Student’S T Test

Abstract A UV spectrophotometric method was developed for determination of ceftiofur sodium in the drug substance and sterile powder for injection. The method validation, which yielded good results, included evaluation of the range, linearity, intraand interday precision, accuracy, recovery, specificity, robustness, LOQ, and LOD. The UV spectrophotometric determinations were performed at 292 nm. Good linearity was obtained between 2.5 and 20.0 g/mL. A prospective validation showed that the method is linear (r = 0.9999) and precise, with RSD values of 0.3 for product A and 0.4 for product B. The intraand interday precision values were &lt;2 for all samples analyzed. Comparison of UV spectrophotometry and LC by analysis of variance and Student's t-test showed no significant difference between methodologies. Moreover, the accuracy and precision obtained with the UV method correlated well with the values obtained with the LC method, and this correlation suggests that UV spectrophotometric analysis can be an inexpensive, reliable, and less time-consuming alternative to chromatographic analysis. The results demonstrated the validity of the proposed method as a simple and useful alternative for the determination of ceftiofur in routine QC analyses.

Spectrofluorimetric study of finasteride and bovine serum albumin interaction and its application for quantitative determination of finasteride in tablet dosage form

2015 ◽  
Vol 7 (12) ◽  
pp. 5096-5102 ◽  
Author(s):  
Ali Saber Abdelhameed ◽  
Amer M. Alanazi ◽  
Adnan A. Kadi
Keyword(s):  
Bovine Serum Albumin ◽  
Serum Albumin ◽  
Quantitative Determination ◽  
Bovine Serum ◽  
Dosage Form ◽  
Albumin Binding ◽  
Bovine Serum Albumin Binding ◽  
Tablet Dosage ◽  
Accurate Quantification

Finasteride and bovine serum albumin binding is investigated and used for simple, accurate quantification of finasteride in tablets.

scholarly journals Development of UV-spectrophotometry Method of the Quantitative Determination of a New Substance Quinazoline-4(3h)-on Derivate

2020 ◽  
Vol 9 (1) ◽  
pp. 30-34
Author(s):  
E. S. Mishchenko ◽  
A. D. Lazaryan ◽  
T. T. Lihota
Keyword(s):  
Quantitative Determination ◽  
Active Substance ◽  
Research Work ◽  
Biologically Active ◽  
Uv Spectrophotometry ◽  
Pharmacological Effects ◽  
Specific Absorption ◽  
Biologically Active Substance ◽  
Effective Remedy

Introduction. The aim idea of this research article is a development of the quantitative determination of a biologically active substance quinazolin4(3H)-on derivate with laboratory cypher «VMA-10-182, by UV-spectrophotometry with followed validation. The substance is an effective remedy that combines several pharmacological effects, like an antidepressant, anxiolytic and nootropic. As a result of preclinical trials, the research compound has proven to be an effective remedy in the fight and prevention of acute cerebrovascular accident (stroke). The substance realized pharmacological effects by stimulating the production of nitric oxide by the endothelial cells of the brain. As aresult of stimulating is a vasodilation of the vessels and improvement of blood flow in the ischemic part of the vessels occur. Therefore, for introducing the biologically active substance into medical practice we need to develop ways to control the quality of substance.Aim. The objective of this research work is to develop a method of the quantitative determination of a biologically active substance, derivative quinazolin-4(3H)-on (laboratory sypher – VMA-10-18), by method of UV spectrophotometry. The results of the research work were validated.Materials and methods. In this research we used a substance VMA-10-18 wich was previously purified from the initial and intermediate products of the synthesis. This substance is a white crystalline powder, odorless, hygroscopic.Results and discussion. The quantitative content of the active substance derived quinazolin-4(3H)-on has been determined. The specific absorption rate was calculated, followed by statistical processing of the results. The validation was carried out according to the «Specificity», «Linearity», «Accuracy», «Repeatability». The results indicate the effectiveness of the developed methodology and experimental reproducibility.Conclusion. Researches of physicochemical properties show al us use 95 % ethanol as a solvent. As a result we developed a method for the quantitative determination of the substance which can be proposed for inclusion in the normative documents. The quantitative determination of the active substance in the test substance was established, and the specific absorption index was calculated. All information are statistically processed and meet the requirements of regulatory documentation.

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