scholarly journals Development and Validation of Zero and First Order Derivative Area Under Curve Spectrophotometric Methods for Pyrazinamide in Bulk Material and Pharmaceutical Formulation

2020 ◽  
Vol 4 (9) ◽  
pp. 48-55
Author(s):  
SS Chalikwar ◽  
MB Narode ◽  
PS Jain ◽  
SB Shinde ◽  
SV Kakulade
Keyword(s):  
Area Under Curve ◽  
Bulk Material ◽  
Pharmaceutical Formulation ◽  
Order Derivative ◽  
First Order ◽  
Spectrophotometric Methods ◽  
Development And Validation

scholarly journals Estimation of Tadalafil Using Derivative Spectrophotometry in Bulk Material and in Pharmaceutical Formulation

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Zamir G. Khan ◽  
Amod S. Patil ◽  
Atul A. Shirkhedkar
Keyword(s):  
Wavelength Range ◽  
Area Under Curve ◽  
Pharmaceutical Formulation ◽  
Second Order ◽  
Order Derivative ◽  
Uv Spectrophotometry ◽  
First Order ◽  
Beer's Law ◽  
Beer’S Law ◽  
Derivative Uv Spectrophotometry

Four simple, rapid, accurate, precise, reliable, and economical UV-spectrophotometric methods have been proposed for the determination of tadalafil in bulk and in pharmaceutical formulation. “Method A” is first order derivative UV spectrophotometry using amplitude, “method B” is first order derivative UV spectrophotometry using area under curve technique, “method C” is second order derivative UV spectrophotometry using amplitude, and “method D” is second order derivative UV spectrophotometry using area under curve technique. The developed methods have shown best results in terms of linearity, accuracy, precision, and LOD and LOQ for bulk drug and marketed formulation as well. In N,N-dimethylformamide, tadalafil showed maximum absorbance at 284 nm. For “method A” amplitude was recorded at 297 nm while for “method B” area under curve was integrated in the wavelength range of 290.60–304.40 nm. For “method C” amplitude was measured at 284 nm while for “method D” area under curve was selected in the wavelength range of 280.80–286.20 nm. For methods A and B, tadalafil obeyed Lambert-Beer’s law in the range of 05–50 μg/mL while for “methods C and D”, tadalafil obeyed Lambert-Beer’s law in the range of 20–70 μg/mL, and-for “methods A, B, C, and D” the correlation coefficients were found to be > than 0.999.

scholarly journals Estimation of Levocetirizine in Bulk and Formulation by First Order Derivative Area under Curve UV-Spectrophotometric Methods.

2016 ◽  
Vol 2 (1) ◽  
pp. 09
Author(s):  
Pandurang Tukaram Mane
Keyword(s):  
Area Under Curve ◽  
Pharmaceutical Formulations ◽  
Order Derivative ◽  
Pharmaceutical Dosage Forms ◽  
Mean Values ◽  
First Order ◽  
Spectrophotometric Methods ◽  
Ich Guidelines ◽  
Significant Difference

Simple, fast and reliable spectrophotometric methods were developed for determination of Levocetirizine in bulk and pharmaceutical dosage forms. The solutions of standard and the sample were prepared in Methanol. The quantitative determination of the drug was carried out using the second order Derivative Area under Curve method values measured at 235-243 nm. Calibration graphs constructed at their wavelengths of determination were linear in the concentration range of Levocetirizine using 5-25?g/ml (r=0.9994) for first order Derivative Area under Curve spectrophotometric method. The proposed methods have been extensively validated as per ICH guidelines. There was no significant difference between the performance of the proposed methods regarding the mean values and standard deviations. The developed methods were successfully applied to estimate the amount of Levocetirizine in pharmaceutical formulations.

scholarly journals Development and Statistical Validation of Spectrophotometric Methods for the Estimation of Nabumetone in Tablet Dosage Form

2010 ◽  
Vol 7 (4) ◽  
pp. 1463-1467 ◽  
Author(s):  
A. R. Rote ◽  
S. R. Bhalerao
Keyword(s):  
Area Under Curve ◽  
Dosage Form ◽  
Correlation Coefficients ◽  
Order Derivative ◽  
Statistical Validation ◽  
First Order ◽  
Spectrophotometric Methods ◽  
Derivative Spectra ◽  
Pharmaceutical Tablet ◽  
Tablet Dosage

Three new simple, economic spectrophotometric methods were developed and validated for the estimation of nabumetone in bulk and tablet dosage form. First method includes determination of nabumetone at absorption maxima 330 nm, second method applied was area under curve for analysis of nabumetone in the wavelength range of 326-334 nm and third method was First order derivative spectra with scaling factor 4. Beer law obeyed in the concentration range of 10-30 μg/mL for all three methods. The correlation coefficients were found to be 0.9997, 0.9998 and 0.9998 by absorption maxima, area under curve and first order derivative spectra. Results of analysis were validated statistically and by performing recovery studies. The mean percent recoveries were found satisfactory for all three methods. The developed methods were also compared statistically using one way ANOVA. The proposed methods have been successfully applied for the estimation of nabumetone in bulk and pharmaceutical tablet dosage form.

scholarly journals Development and validation of Spectrophotometry methods for estimation of linezolid in bulk and in pharmaceutical Dosage formulation

2019 ◽  
Vol 9 (3) ◽  
pp. 60-65
Author(s):  
Rink R. Mali ◽  
A.P. Gorle
Keyword(s):  
Area Under Curve ◽  
Bulk Material ◽  
Zero Order ◽  
Visible Range ◽  
Spectrophotometric Methods ◽  
Order Spectrum ◽  
Ich Guidelines ◽  
Standard Solution ◽  
Stock Solutions ◽  
Development And Validation

A simple, precise and economical, and rapid Spectrophotometric methods for the quantification of Linezolid in bulk material and in tablets. Further, this study is designed to validate the developed methods as per ICH guidelines. Material & methods: In Methods A and B, a stock standard solution was prepared by dissolving 10 mg of Linezolid in 100 mL of phosphate buffer pH 7.4 to obtain a concentration of 100 μg/mL. After suitable dilution, 10 μg/mL of  Linezolid was prepared and scanned in the UV-visible range 400 –200 nm;  In method A zero order spectrum Linezolid showed a maximum absorbance at 251 nm. while in Method B  area under curve (AUC) zero-order spectrum was recorded between 245 and 268 nm. For a linearity study, series of dilutions were prepared from stock solutions. Results: In Method A and B, Linezolid followed linearity in the concentration range of 3 – 18 μg/mL with (r2 = 0.9978) (r2 = 0.9981). The accuracy of the method was checked by recovery experiment performed at three different levels i.e., 80%, 100% and 120%. The % recovery was found to be in the range 96.15% – 99.32% for method A, while in method B range is 99.16 % - 100.20 %. The low values of % RSD are indicative of the accuracy and reproducibility of the method. The precision of the method was studied as an intra-day, inter-day variations and repeatability. The % R.S.D. value less than 2 indicate that the method was precise. Ruggedness of the proposed method was studied with the help of two analysts. The proposed method of pharmaceutical formulation the amounts of Linezolid estimated by both these methods (A and B) were found to be 96.25 ± 0.44 and 99.48 ± 1.05, respectively. Conclusion: The developed methods are simple, precise, rugged, and economical. Both these methods can be used for routine analysis of Linezolid from its tablet formulation. Keywords: Linezolid, UV-Spectrophotometric methods, area under curve, zero order spectrum

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