Supercritical fluid chromatographic method using phenyl packed column for determination of phenobarbitone and phenytoin sodium in dosage form

1999 ◽  
Vol 384 (2) ◽  
pp. 143-150 ◽  
Author(s):  
Suvarna T Patil ◽  
Indravadan C Bhoir ◽  
M Sundaresan
Keyword(s):  
Supercritical Fluid ◽  
Dosage Form ◽  
Chromatographic Method ◽  
Packed Column ◽  
Phenytoin Sodium

A Green Liquid Chromatographic Method For The Simultaneous Determination of Chlorpheniramine Maleate, Pseudoephedrine Hydrochloride and Propyphenazone

2019 ◽  
Vol 15 (6) ◽  
pp. 635-641
Author(s):  
Nadia M. Mostafa ◽  
Ghada M. Elsayed ◽  
Nagiba Y. Hassan ◽  
Dina A. El Mously
Keyword(s):  
Simultaneous Determination ◽  
Mobile Phase ◽  
Dosage Form ◽  
Chromatographic Method ◽  
Green Analytical Chemistry ◽  
Chlorpheniramine Maleate ◽  
Accuracy And Precision ◽  
Liquid Chromatographic Method ◽  
Liquid Chromatographic

Background:The concept of green analytical chemistry prevails due to the growing environmental pollution.Objective:Our attempts are to develop simple and eco-friendly method which is non-harmful to the environment by producing minimal waste. In this context, a green liquid chromatographic method was applied for the simultaneous determination of chlorpheniramine maleate, pseudoephedrine hydrochloride and propyphenazone in their combined dosage form.Methods:Separation was carried out using X select HSS RP C18 analytical column (250 × 4.6 mm, 5μm) using methanol - 0.02 M phosphate buffer pH 3 - triethylamine (60:40: 0.1, by volume) as a mobile phase. The separated peaks were detected at 215 nm at a flow rate 1.0 mL/min.Results:Quantification was done over the concentration ranges of 1-25 µg/mL for chlorpheniramine maleate, 5-35 µg/mL for pseudoephedrine hydrochloride and 10-120 µg/mL for propyphenazone. The suggested method was validated with regard to linearity, accuracy and precision according to the International Conference on Harmonization guidelines with good results.Conclusion:It could be used as a safer alternative for routine analysis of the mentioned drugs in quality control laboratories.

A VALIDATED METHOD FOR THE DETERMINATION OF TAPENTADOL HYDROCHLORIDE IN BULK AND ITS PHARMACEUTICAL FORMULATION BY DENSITOMETRIC ANALYSIS

INDIAN DRUGS ◽  
2012 ◽  
Vol 49 (12) ◽  
pp. 51-55
Author(s):  
S Kathirvel ◽  
◽  
K. Madhu Babu
Keyword(s):  
Mobile Phase ◽  
High Performance ◽  
Dosage Form ◽  
Chromatographic Method ◽  
Glacial Acetic Acid ◽  
Calibration Plot ◽  
Pharmaceutical Dosage Form ◽  
Aluminum Plates ◽  
Tablet Dosage

Described in this manuscript is the first reported new, simple high performance thin layer chromatographic method for the determination of tapentadol hydrochloride in bulk and its tablet dosage form. The drug was separated on aluminum plates precoated with silica gel 60 F254 with butanol: water: glacial acetic acid in the ratio of 6:2:2 (v/v/v) as mobile phase. Quantitative analysis was performed by densitometric scanning at 254 nm. The method was validated for linearity, accuracy, precision and robustness. The calibration plot was linear over the range of 200-600 ng band -1 for tapentadol hydrochloride. The method was successfully applied to the analysis of drug in a pharmaceutical dosage form.

scholarly journals DETERMINATION OF CHROMATOGRAPHIC ASSAY AND VALIDATION OF OFLOXACIN IN BULK AND PHARMACEUTICAL DOSAGE FORM

2018 ◽  
Vol 11 ◽  
Author(s):  
Sumithra M
Keyword(s):  
Mobile Phase ◽  
Dosage Form ◽  
Chromatographic Method ◽  
Assay Method ◽  
Reverse Phase ◽  
Pharmaceutical Dosage Form ◽  
Ich Guidelines ◽  
Validation Parameters ◽  
The Mean

Objective: The objective of the study is simple, sensitive; eco-friendly reverse phase chromatographic method has been developed and validated for the quantitative determination of ofloxacin in bulk and marketed formulation. Method: The developed method was done using Hypersil silica C18 (250 mm × 4.6 mm, 5 μ particle size) as column and the mobile phase is containing water and methanol in the ratio of (10:90) vol/vol. The mobile phase pass at 1 ml/min flow rate and the eluted solution is measured at 270 nm using a PDA detector. Results: The assay method is linear from the concentration range of 5–30 μg/ml. The corelation coefficient is 0.9998. The mean percentage recovery for the developed method is found to be in the range of 98.4–100.6%. The developed method complies robustness studies. Conclusion: The validation of the developed method was done by as per the ICH guidelines. It obeys the linearity, accuracy, precision, and robustness studies. Validation parameters are within the limitations. The results of the developed process indicated the reverse phase chromatographic method is simple, accurate as well as precise, rapid and eco-friendly method for routine analysis of ofloxacin in bulk and its pharmaceutical dosage form.

Development of a supercritical fluid chromatographic method for determination of aromatics in heating oils and diesel fuels

1989 ◽  
Vol 3 (1) ◽  
pp. 80-84 ◽  
Author(s):  
S. Win Lee ◽  
Bryan J. Fuhr ◽  
Larry R. Holloway ◽  
Charles Reichert
Keyword(s):  
Supercritical Fluid ◽  
Chromatographic Method ◽  
Diesel Fuels

Electron Capture Gas Chromatographic Determination of Traces of Formaldehyde in Milk as the 2,4-Dinitrophenylhydrazone

1986 ◽  
Vol 69 (4) ◽  
pp. 655-657
Author(s):  
Katherine E Buckley ◽  
Lorne J Fisher ◽  
Vernon G MacKay
Keyword(s):  
Gas Chromatography ◽  
Electron Capture ◽  
Quantitative Method ◽  
Chromatographic Method ◽  
Packed Column ◽  
Chromatographic Determination ◽  
Electron Capture Detection ◽  
External Standard

Abstract A quantitative method is described for the determination of formaldehyde in milk by packed-column gas chromatography and electron capture detection. Aldehyde derivatization was carried out in situ with 2,4-dinitrophenyIhydrazine followed by extraction and analysis using an external standard. Average recoveries of 96.3 ± 1.6% were characteristic of the chromatographic method with an estimated detection limit of 0.026 mg/kg. The technique was applied to determination of formaldehyde in milk from cows consuming a formalin-treated feedstuff.

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