scholarly journals Electrochemical Determination of Minoxidil in Different Pharmaceutical Formulations by Flow Injection Analysis

2006 ◽  
Vol 22 (1) ◽  
pp. 91-94 ◽  
Author(s):  
Valeria PFAFFEN ◽  
Patricia I. ORTIZ
Keyword(s):  
Flow Injection ◽  
Flow Injection Analysis ◽  
Pharmaceutical Formulations ◽  
Electrochemical Determination

scholarly journals Determination of sildenafil citrate (Viagra®) in various pharmaceutical formulations by flow injection analysis with multiple pulse amperometric detection

2012 ◽  
Vol 23 (10) ◽  
pp. 1800-1806 ◽  
Author(s):  
Antônio Carlos V. Lopes Júnior ◽  
Rita de Cássia Silva Luz ◽  
Flávio S. Damos ◽  
Alexandre S. dos Santos ◽  
Diego L. Franco ◽  
...  
Keyword(s):  
Flow Injection ◽  
Flow Injection Analysis ◽  
Amperometric Detection ◽  
Pharmaceutical Formulations ◽  
Sildenafil Citrate ◽  
Multiple Pulse ◽  
Pulse Amperometric Detection

Batch-injection versus Flow-injection Analysis Using Screen-printed Electrodes: Determination of Ciprofloxacin in Pharmaceutical Formulations

2015 ◽  
Vol 28 (2) ◽  
pp. 350-357 ◽  
Author(s):  
Jéssica S. Stefano ◽  
Denise S. Cordeiro ◽  
Mariana C. Marra ◽  
Eduardo M. Richter ◽  
Rodrigo A. A. Munoz
Keyword(s):  
Flow Injection ◽  
Flow Injection Analysis ◽  
Pharmaceutical Formulations ◽  
Screen Printed Electrodes ◽  
Screen Printed

scholarly journals Determination of Phenylephrine Hydrochloride by Flow Injection Analysis with Chemiluminescence Detection

2001 ◽  
Vol 84 (1) ◽  
pp. 13-18 ◽  
Author(s):  
Yolanda Fuster Mestre ◽  
Luis Lahuerta Zamora ◽  
José Martínez Calatayud
Keyword(s):  
Flow Injection ◽  
Flow Injection Analysis ◽  
Pharmaceutical Formulations ◽  
Calibration Graph ◽  
Chemiluminescence Detection ◽  
Phenylephrine Hydrochloride ◽  
Sulfuric Acid Medium ◽  
Sample Throughput ◽  
Relative Standard

Abstract A new method is proposed for the determination of phenylephrine hydrochloride by flow injection analysis with direct chemiluminescence detection. The method is based on the oxidation of the drug by potassium permanganate in sulfuric acid medium at 80°C. The calibration graph is linear over the range 0.03–8 ppm phenylephrine hydrochloride, with a relative standard deviation (n = 51, 0.5 ppm) of 1.1% and sample throughput of 134/h. The influence of 38 different foreign compounds was tested, and the method was applied to the determination of phenylephrine hydrochloride in 8 different pharmaceutical formulations.

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