A New Ecological HPLC Method for Determination of Vancomycin Dosage form

2020 ◽  
Vol 7 (2) ◽  
pp. 82-90
Author(s):  
Patricia Aleixa do Nascimento ◽  
Ana Carolina Kogawa ◽  
Hérida R.N. Salgado
Keyword(s):  
Analytical Chemistry ◽  
Quality Control ◽  
Acetic Acid ◽  
Dosage Form ◽  
Uv Light ◽  
Hplc Method ◽  
Green Analytical Chemistry ◽  
Vancomycin Dosage ◽  
Routine Quality Control

Aims: To develop and validate a new ecological HPLC method for the determination of vancomycin dosage form. Background: Vancomycin is an important antimicrobial. According to the literature, there are many methods that use HPLC, but none of these methods follow the green analytical chemistry principles. Objective: Therefore, a green analytical method to quantify vancomycin in lyophilized powder for injectable solution by HPLC was developed. Materials and Methods: It uses less quantity of toxic solvents, minimizing the costs and optimizing the time of analysis. Water + 0.1% acetic acid and ethanol (85:15, v/v), 0.5 mL min-1, and C18 column (15 cm) at 280 nm were used. Results and Discussion: The method was linear in the range of 40 to 140 μg mL-1, with a correlation coefficient of 0.9998. It was selective when subjected to acid 0.1M, basic 0.01M, oxidative 0.3%, UV light and neutral degradation in a bath of 60 ºC for 8 hours. The precision of the method was proved at intraday (RSD 1.08%), interday (RSD 0.47%) and intermediate levels (RSD 2.35%). It was accurate with a mean recovery of 100.19% and robust when changes were performed in seven parameters of the method and analyzed by the Youden and Steiner test. Conclusion: The method can be applied to routine quality control of vancomycin lyophilized powder for injectable solution as an ecological and sustainable alternative that contemplates the green analytical chemistry and the current pharmaceutical analyses.

scholarly journals NEW, GREEN AND MINIATURIZED ANALYTICAL METHOD FOR DETERMINATION OF CEFADROXIL MONOHYDRATE IN CAPSULES

2019 ◽  
Vol 3 (1) ◽  
pp. 23-28 ◽  
Author(s):  
Bianca Marco ◽  
Ana Kogawa ◽  
Hérida Salgado
Keyword(s):  
Analytical Chemistry ◽  
Standard Sample ◽  
Low Cost ◽  
Visible Region ◽  
Hplc Method ◽  
Minimal Amount ◽  
Green Analytical Chemistry ◽  
Color Reagent ◽  
Routine Quality Control

Cefadroxil, an oral antimicrobial, presents few techniques optimized for the reduction of solvents and toxic residues and/or non-use of them. So, a quantitative, new and miniaturized method for determination of cefadroxil monohydrate in capsules has been developed and validated by spectrophotometric method in the visible region according to the international guidelines. The analyzes were performed using microplates containing 96 wells, 1 % of phenolphthalein and sodium hydroxide 0.1 M as reagent at 552 nm. The method was (i) linear in the range of 15-115 µg mL-1, (ii) selective when comparing standard, sample, adjuvants and color reagent, (iii) precise with deviations below 4 %, (iv) accurate when comparing the proposed method with the HPLC method, (v) robusts by making small and deliberate modifications to the method, (vi) besides being fast, low cost, eco-friendly and generates minimal amount of waste. The method can be applied to the routine quality control of cefadroxil monohydrate in capsules and an effective and accessible alternative that contemplates the concepts of current and sustainable green analytical chemistry.

scholarly journals ECO-FRIENDLY GREEN LIQUID CHROMATOGRAPHIC FOR DETERMINATION OF DOXYCYCLINE IN TABLETS AND IN THE PRESENCE OF ITS DEGRADATION PRODUCTS

2018 ◽  
Vol 2 (2) ◽  
pp. 49-55
Author(s):  
Loren Ghidini ◽  
Ana Kogawa ◽  
Hérida Regina Nunes Salgado
Keyword(s):  
Analytical Chemistry ◽  
Quality Control ◽  
Degradation Products ◽  
Toxic Waste ◽  
Green Analytical Chemistry ◽  
Photolytic Degradation ◽  
Liquid Chromatographic ◽  
Detection And Quantification ◽  
Routine Quality Control

Doxycycline, an oral antimicrobial, does not present a sustainable analytical method described in the literature using liquid chromatography. A new and efficient method was developed and validated for the quantification of doxycycline tablets by HPLC-UV. Its aim is the contribution to the green analytical chemistry since it has low use of organic solvent and low production of toxic waste. The HPLC-UV method used a mixture of purified water + 0.5 % acetic acid and ethanol (40:60, v/v). The flow rate was 0.8 mL min-1, C18 Luna column, 20 μL of injected volumes at 275 nm. The samples were prepared in purified water and the method was linear over the concentration range of 20–200 μg mL-1 (r = 0.9997) with limits of detection and quantification of 1.08 and 3.27 μg mL-1, respectively. The precision of the method showed RSD 0.50 % (intra-assay), 2.35 % (inter-assay) and 1.13 % (between analysts). The accuracy of the method was determined by standard recovery and it was 99.85 %. The DOX tablets were subjected to oxidative, acid, basic, neutral and photolytic degradation and it showed be stability indicative. Statistical analysis provided reliable, safety and reproducible results. The method is considered linear, selective, precise, accurate, robust, indicative of stability and safe to be used in routine quality control analyzes for determination and quantification of doxycycline in tablets. The proposed method is an ecologically correct alternative for the evaluation of doxycycline tablets.

scholarly journals GREEN ANALYTICAL METHOD FOR QUANTIFICATION OF SECNIDAZOLE IN TABLETS BY HPLC-UV

2018 ◽  
Vol 2 (2) ◽  
pp. 20-26
Author(s):  
Jéssica Lima ◽  
Ana Kogawa ◽  
Hérida Regina Nunes Salgado
Keyword(s):  
Analytical Chemistry ◽  
Particle Size ◽  
Analytical Method ◽  
Mobile Phase ◽  
Toxic Waste ◽  
Green Analytical Chemistry ◽  
Injection Volume ◽  
As Stress ◽  
Routine Quality Control

A simple, rapid, economic and green analytical method was validated for the determination of secnidazole in tablets. The aim was to contribute to the green analytical chemistry since it has low use of organic solvent and low production of toxic waste. For the HPLC-UV method, the mobile phase was a mixture of purified water + 0.7 % acetic acid and ethanol (78:22, v/v), flow rate was 1.3 mL min-1 on column CN Phenomenex Luna (250 x 4.60 mm, 5 μm particle size), injection volume was 20 μL with UV detection at 318 nm and retention time of 4.26 minutes. The method was linear over the concentration range of 5-100 μg mL-1 (r = 0.9998) with limits of detection and quantitation of 0.533 e 1.615 μg mL-1, respectively. The precision of the method showed RSD less than 2 %. The accuracy determined by the average recoveries was 99.58 %. The secnidazole tablets were subjected to oxidation, acid, alkaline, neutral and photolysis degradation as stress conditions and the method was considered as indicative of stability. The method is adequate and safe to be a great alternative method in routine quality control analyzes for determination and quantification of secnidazole tablets.

scholarly journals Comparison of Microbiological and UV-Spectrophotometric Assays for Determination of Voriconazole in Tablets

2006 ◽  
Vol 89 (4) ◽  
pp. 960-965 ◽  
Author(s):  
Andra I H Adams ◽  
Martin Steppe ◽  
Pedro E Frehlich ◽  
Ana M Bergold
Keyword(s):  
Quality Control ◽  
High Performance Liquid Chromatography ◽  
High Performance ◽  
Hplc Method ◽  
Average Recovery ◽  
Significant Difference ◽  
Coefficient Corrélation ◽  
Sacharomyces Cerevisiae ◽  
Routine Quality Control

Abstract Two methods have been developed for the determination of voriconazole, a new antifungal drug, in tablets. A UV method, with detection at 255 nm, was compared with a diffusion agar bioassay, which used Sacharomyces cerevisiae ATCC 2601 as the assay organism. The developed methods were linear in the range of 3.0-12.0 and 12.0-24.0 μg/mL, for the microbiological and UV methods, respectively, both exhibiting a coefficient correlation of 0.9999. The UV method demonstrated an improved precision compared to the bioassay method (1.0 versus 2.4%). The average recovery, 99.8 and 100.9%, was suitable in both methods. The results obtained by these 2 methods were compared with those of a high-performance liquid chromatography (HPLC) method published previously, and no evidence of significant difference was observed. The proposed methods are appropriate for the determination of voriconazole in tablets and can be used in routine quality control.

scholarly journals Separation and Identification of Furocoumarin in Fruits ofHeracleum candicansDC. by HPTLC

2013 ◽  
Vol 2013 ◽  
pp. 1-4 ◽  
Author(s):  
A. K. S. Rawat ◽  
A. P. Singh ◽  
D. P. Singh ◽  
M. M. Pandey ◽  
R. Govindarajan ◽  
...  
Keyword(s):  
Quality Control ◽  
Acetic Acid ◽  
Pharmaceutical Industry ◽  
High Performance ◽  
Skin Diseases ◽  
Heracleum Candicans ◽  
Layer Chromatography ◽  
Hptlc Method ◽  
Routine Quality Control

Heracleum candicansWall. ex DC. (Apiaceae) is widely used in Indian system of medicines as an aphrodisiac, nerve tonic and also in the treatment of skin diseases with reports of being rich in furocoumarins which are extensively used in pharmaceutical industry for their photosensitizing activity on human skin. A simple high performance thin layer chromatography (HPTLC) method has been developed for the simultaneous determination of psoralen (1) and heraclenol (2) in the fruits ofH. candicans. The analytes were separated on silica gel F254plates with toluene : diethy lether : acetic acid (6 : 4 : 1) and scanned densitometrically at 350 nm. The method was validated in terms of precision, repeatability, and accuracy. The linear range for psoralen and heraclenol was found to be 1–5 μg spot−1and 1–4 μg spot−1with correlation coefficient of 0.973 and 0.964, respectively. The two compounds were quantified in fruits ofH. candicansand were found to be present in the range of 0.021–0.036% and 0.029–0.043% w/w. The method was found to be very simple, accurate, precise, and economical and can be used for routine quality control.

Turbidimetric Method: A New, Ecological, and Fast Way to Evaluate of Vancomycin Potency

2020 ◽  
Vol 103 (6) ◽  
pp. 1582-1587
Author(s):  
Patrícia Aleixa do Nascimento ◽  
Ana Carolina Kogawa ◽  
Hérida Regina Nunes Salgado
Keyword(s):  
Analytical Chemistry ◽  
Quality Control ◽  
Culture Medium ◽  
Culture Media ◽  
Pharmaceutical Product ◽  
Green Analytical Chemistry ◽  
Microbiological Method ◽  
Turbidimetric Method ◽  
Microbiological Methods ◽  
Routine Quality Control

Abstract Background Vancomycin, an antimicrobial, has many microbiological methods in literature, but it was not found any that follows the green chemistry principles. Objective The aim of this work was to develop and validate a new microbiological analytical method with a green view to determine the vancomycin potency in lyophilized powder using less quantity of diluents and culture medium, minimizing the costs and reducing the time of analysis. Methods The objective will be achieved using the microbiological method by turbidimetry. Results Water was used as the diluent to prepare the vancomycin solution. BHI broth as used as culture media for the growth of the S. aureus ATCC 25923. The method was linear in the range of 30, 39 and 50.7 µg/mL. It was selective, with vancomycin reference and sample absorbance values very similar. The precision of the method was proved at intraday (RSD 4.42 %), interday (RSD 3.56 %) and intermediate levels (RSD 2.03%). It was accurate with mean recovery of 100.71 % and robust when changes were performed in three parameters of the method and analyzed by the F-Test and t-Test. Conclusions The method for evaluating the potency of vancomycin in pharmaceutical product was successfully developed and validated. Highlights The method can be applied to routine quality control of vancomycin product as an alternative that contemplates the green analytical chemistry and the current pharmaceutical analyzes.

scholarly journals Development, Estimation and Validation of Lisinopril in Bulk and its Pharmaceutical Formulation by HPLC Method

2012 ◽  
Vol 9 (1) ◽  
pp. 340-344 ◽  
Author(s):  
V. Bhaskara Raju ◽  
A. Lakshmana Rao
Keyword(s):  
Quality Control ◽  
Mobile Phase ◽  
Dosage Forms ◽  
Hplc Method ◽  
Control Analysis ◽  
Reverse Phase ◽  
Quality Control Analysis ◽  
Tablet Dosage ◽  
Routine Quality Control

An accurate and preciseHPLCmethod was developed for the determination of lisinopril. Separation of the drug was achieved on a reverse phase C8column using a mobile phase consisting of phosphate buffer and methanol in the ratio of 35:65v/v. The flow rate was 0.8 mL/min and the detection wavelength was 215 nm. The linearity was observed in the range of 20-60 μ g/mL with a correlation coefficient of 0.9992. The proposed method was validated for its linearity, accuracy, precision and robustness. This method can be employed for routine quality control analysis of lisinopril in tablet dosage forms.

scholarly journals Validation of UV Spectrophotometric and HPLC Methods for Quantitative Determination of Chlorpyrifos

2013 ◽  
Vol 21 ◽  
pp. 58-63
Author(s):  
O.A. Zalat ◽  
Mohamed A. Elsayed ◽  
M.S. Fayed ◽  
M.K. Abd El Megid
Keyword(s):  
Quality Control ◽  
Statistical Analysis ◽  
Spectrophotometric Method ◽  
Mobile Phase ◽  
Reversed Phase ◽  
Hplc Method ◽  
Routine Quality Control ◽  
Phase Column ◽  
Reversed Phase Column

A specific and sensitive HPLC and UV spectrophotometric methodwere developed for determination and analysis of chlorpyrifos. Chromatographic separation was achieved on a 150 mm x 10 mm I.D. reversed phase column Zorbax SB C-18. usingdeionizedwater: acetonitrile in the ratio of 10:90 v/v respectively as mobile phase. The effluent was monitored at 290 and 230 nm. Two sharp peaks were obtained for the solvent and chlorpyrifos at 2.7 and 3.45 min respectively. UV spectrophotometric method was performed at 290 nm using Isopropanol as the solvent. Linear range was 0.025-3500 ppm (r2 = 0.9986 ±0.0009) for HPLC method and 2.229 to 200 ppm (r2 = 0.9988) for UV spectrophotometric method. Validation guidelines and statistical analysis showed that both the methods were precise, accurate, sensitive, and can be used for the routine quality control of chlorpyrifos in waste discharges

scholarly journals UV Spectrophotometric Method for Determination of Cinitapride in Pure and its Solid Dosage Form

2009 ◽  
Vol 6 (s1) ◽  
pp. S21-S24 ◽  
Author(s):  
B. Thangabalan ◽  
A. Elphine Prabahar ◽  
R. Kalaichelvi ◽  
P. Vijayaraj Kumar
Keyword(s):  
Quality Control ◽  
Spectrophotometric Determination ◽  
Spectrophotometric Method ◽  
Analytical Method ◽  
Dosage Form ◽  
Spectrophotometric Assay ◽  
Solid Dosage ◽  
Quality Control Testing ◽  
Routine Quality Control

A new, rapid, precise, accurate and sensitive analytical method was developed for the UV spectrophotometric assay of cinitapride (CTP). The drug obeyed the Beer's law and showed good correlation. It showed absorption maxima at 260 nm in methanol. The linearity was observed between 5-40 µg mL-1. The results of analysis were validated by recovery studies. The recovery was more than 99%. The proposed method is the only method available for spectrophotometric determination of the drug. It is simple, precise, sensitive and reproducible and can be used for the routine quality control testing of the marketed formulations.

UV spectroscopic method for determination of phenytoin in bulk and injection forms

2019 ◽  
Author(s):  
Chem Int
Keyword(s):  
Quality Control ◽  
Spectrophotometric Method ◽  
Spectroscopic Method ◽  
Ich Guidelines ◽  
Precision And Accuracy ◽  
Routine Quality Control

Recent study was conducted to develop a simple UV spectrophotometric method to determine Phenytoin in bulk and injection form according to official requirement and validate as per ICH guidelines. λmax of Phenytoin was found 202 nm. Linearity existed perceived in the concentration assortment 2-8 μg/ml (r2 = 0.999) for the method. The method was validated pertaining to linearity, precision and accuracy studies, LOD and LOQ consistent with ICH guidelines. The existent method was establish to be simple, linear, precise, accurate as well as sensitive and can be applied for routine quality control enquiry for the analysis of Phenytoin in bulk and injection form.

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