scholarly journals Development and Validation of a Reversed-Phase Column Liquid Chromatographic Method for the Determination of Five Cephalosporins in Pharmaceutical Preparations

2011 ◽  
Vol 94 (5) ◽  
pp. 1440-1446
Author(s):  
Ehab F Elkady ◽  
Samah S Abbas

Abstract A new, simple, rapid, and precise RP-HPLC method has been developed and validated for the determination of five cephalosporins, namely, cefalexin, cefoperazone, ceftriaxone, ceftazidime, and cefepime. The method has been applied successfully for simultaneous determination of cefalexin in a binary mixture with sodium benzoate in a suspension, and cefoperazone in a binary mixture with sulbactam in vials. Chromatographic separation was achieved on a Waters μBondapak® C18 column (250 × 4.6 mm id, 10 μm particle size) using the mobile phase monobasic potassium phosphate (50 mM, pH 4.6)–acetonitrile (80 + 20, v/v) with UV detection. A flow rate of 1 mL/min was applied. Linearity, accuracy, and precision were found to be acceptable over the concentration range of 30–300, 3–30, and 15–120 μg/mL for the studied cephalosporins, sodium benzoate, and sulbactam, respectively. The optimized method proved to be specific, robust, and accurate for QC of the cited drugs in their pharmaceutical preparations.

2011 ◽  
Vol 94 (5) ◽  
pp. 1440-1446 ◽  
Author(s):  
Ehab F Elkady ◽  
Samah S Abbas

Abstract A new, simple, rapid, and precise RP-HPLC method has been developed and validated for the determination of five cephalosporins, namely, cefalexin, cefoperazone, ceftriaxone, ceftazidime, and cefepime. The method has been applied successfully for simultaneous determination of cefalexin in a binary mixture with sodium benzoate in a suspension, and cefoperazone in a binary mixture with sulbactam in vials. Chromatographic separation was achieved on a Waters μBondapak® C18 column (250 × 4.6 mm id, 10 μm particle size) using the mobile phase monobasic potassium phosphate (50 mM, pH 4.6)–acetonitrile (80 + 20, v/v) with UV detection. A flow rate of 1 mL/min was applied. Linearity, accuracy, and precision were found to be acceptable over the concentration range of 30–300, 3–30, and 15–120 μg/mL for the studied cephalosporins, sodium benzoate, and sulbactam, respectively. The optimized method proved to be specific, robust, and accurate for QC of the cited drugs in their pharmaceutical preparations.


INDIAN DRUGS ◽  
2019 ◽  
Vol 56 (07) ◽  
pp. 43-49
Author(s):  
B.P. Manjula ◽  
V. G Joshi ◽  
Siddamsetty Ramachandra Setty ◽  
M Geetha ◽  

Tea tree oil, an active ingredient of skin, hair and nail care cosmeceuticals, has claims for topical antimicrobial, analgesic and anti-inflammatory activity. Its complex composition is governed by ISO 4730:2017. Terpinene-4-ol is the principal constituent of the oil (35% - 48%) followed by γ-terpinene (14% -28%), α-terpinene (6%-12%) and 1,8-cineole (≤15%). A reversed-phase, isocratic high performance liquid chromatographic method has been developed and validated for routine determination of tea tree oil based on1,8-cineole content in bulk and commercially available cosmeceuticals using C18 column, methanol-water (70:30 v/v) as mobile phase and flow rate of 1mL/min. UV detection was done at 200 nm. Linearity of the method was established for 20-100μL/mL (R2 = 0.9992) with LOD, LOQ values of 0.5594 μL/mL and 5.5941μL/mL respectively. The % RSD values for robustness and precision were <1% and recovery ranged between 99.09-102.96%. The method was successfully applied for determination of 1,8-cineole content in cosmeceuticals.


2017 ◽  
Vol 1 (2) ◽  
pp. 1-8
Author(s):  
Milena Cristina Ribeiro Souza Magalhães ◽  
Alisson Samuel Portes Caldeira ◽  
Hanna De Sousa Rocha Almeida ◽  
Sílvia Ligório Fialho ◽  
Armando Da Silva Cunha Junior

A reversed-phase high-performance liquid chromatographic (HPLC) method was developed and validated for the determination of encapsulation efficiency of zidovudine in nanoparticules. The method was carried out in isocratic mode using 0.040M sodium acetate: methanol: acetonitrile: glacial acetic acid (880:100:20:2) as mobile phase, a C8 column at 25ºC and UV detection at 240 nm. The method was linear (r2 ˃ 0.99) over the range of 25.0-150.0 μg/mL, precise (RSD ˂ 5%), accurate (recovery = 100.5%), robust and selective. The validated HPLC-UV method can be successfully applied to determine the rate of zidovudine in nanoparticules.


INDIAN DRUGS ◽  
2019 ◽  
Vol 56 (08) ◽  
pp. 81-83
Author(s):  
A Patel ◽  
S. D Firke ◽  
R. R. Patil ◽  
M. G. Kalaskar ◽  
S. B. Bari ◽  
...  

A novel RP-HPLC method was developed and validated for the determination of compounds in an oral solution. The method describes the determination of domperidone along with sodium methylparaben, sodium propylparaben and sodium benzoate in liquid oral formulation. The chromatographic separations were performed using BDS Hypersil 5 μm C18 column and gradient elution (solvent A: phosphate buffer, pH 3.5 and solvent B: methanol) keeping a flow rate of 1.5 mL/min. Detection was done at dual wavelength (232 nm for domperidone and sodium benzoate, and 257 nm for sodium methylparaben and sodium propylparaben). Analysis time was < 17 min. The retention times for domperidone, sodium benzoate, sodium methylparaben and sodium propylparaben were found to be 10.0, 6.5, 8.0, and 13.5 min, The calibration curves for domperidone, sodium benzoate, sodium methylparaben and sodium propylparaben were found to be linear in the range of 250-750, 50-150, 50-150, and 5-15 μg/mL, respectively.


2011 ◽  
Vol 2011 ◽  
pp. 1-4
Author(s):  
Selvadurai Muralidharan ◽  
Subramania Nainar Meyyanathan

A high-performance liquid chromatographic (HPLC) and a ultraviolet (UV) methods were developed and validated for the quantitative determination of Dexibuprofen (DI) in pharmaceutical dosage form. HPLC was carried out by reversed phase technique on a RP-18 column with a mobile phase composed of acetonitrile and 0.5% triethylamine (pH 7.5 adjusted with orthophosphoric acid (30 : 70, v/v)). UV method was performed with the λ max at 222.0 nm. Both the methods showed good linearity, reproducibility and precision. No spectral or chromatographic interferences from the tablet excipients were found in UV and HPLC. The method was successfully applied to commercial DEXIFEN tablets. Validation parameters such as linearity, precision, accuracy, and specificity were determined. The proposed method could be applicable for routine analysis of DI and monitoring of the quality of marketed drugs.


2016 ◽  
Vol 8 (30) ◽  
pp. 5949-5956 ◽  
Author(s):  
Soumia Boulahlib ◽  
Ali Boudina ◽  
Kahina Si-Ahmed ◽  
Yassine Bessekhouad ◽  
Mohamed Trari

In this study, a rapid and simple method based on reversed-phase high performance liquid chromatography (RP-HPLC) using a photodiode array detector (PDA) for the simultaneous analysis of five pollutants including aniline and its degradation products, para-aminophenol, meta-aminophenol, ortho-aminophenol and phenol, was developed.


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