scholarly journals Correction to: Determination of Commonly Used Excipients in Pharmaceutical Preparations by Microchip Electrophoresis with Conductivity Detection

2021 ◽  
Author(s):  
Peter Troška ◽  
Ewa Poboży ◽  
Zuzana Némethová ◽  
Marián Masár
Keyword(s):  
Pharmaceutical Preparations ◽  
Microchip Electrophoresis ◽  
Conductivity Detection

Determination of Commonly Used Excipients in Pharmaceutical Preparations by Microchip Electrophoresis with Conductivity Detection

2019 ◽  
Vol 82 (4) ◽  
pp. 741-748 ◽  
Author(s):  
Peter Troška ◽  
Ewa Poboży ◽  
Zuzana Némethová ◽  
Marián Masár
Keyword(s):  
Pharmaceutical Preparations ◽  
Microchip Electrophoresis ◽  
Conductivity Detection

High-sensitivity microchip electrophoresis determination of inorganic anions and oxalate in atmospheric aerosols with adjustable selectivity and conductivity detection

2009 ◽  
Vol 1216 (9) ◽  
pp. 1503-1510 ◽  
Author(s):  
Scott D. Noblitt ◽  
Florian M. Schwandner ◽  
Susanne V. Hering ◽  
Jeffrey L. Collett ◽  
Charles S. Henry
Keyword(s):  
Atmospheric Aerosols ◽  
High Sensitivity ◽  
Microchip Electrophoresis ◽  
Inorganic Anions ◽  
Conductivity Detection

Determination of ephedrine and related compounds in pharmaceutical preparations by ion chromatography with direct conductivity detection

2005 ◽  
Vol 19 (4) ◽  
pp. 266-271 ◽  
Author(s):  
Jin Ouyang ◽  
Xiaoyin Gao ◽  
Willy R.G. Baeyens ◽  
Joris R. Delanghe
Keyword(s):  
Ion Chromatography ◽  
Pharmaceutical Preparations ◽  
Conductivity Detection ◽  
Related Compounds

Simultaneous Spectrophotometric Determination of Salbutamol by Coupling with Diazotized 4-Aminobenzoic acid

2017 ◽  
Vol 8 (1) ◽  
Author(s):  
Hind Hadi ◽  
Gufran Salim
Keyword(s):  
Pharmaceutical Preparations ◽  
Coupling Reaction ◽  
Dosage Forms ◽  
Water Soluble ◽  
Trace Determination ◽  
Aminobenzoic Acid ◽  
Optimum Conditions ◽  
Colored Product ◽  
Versus Concentration

A simple, rapid and sensitive spectrophotmetric method for trace determination of salbutamol (SAL) in aqueous solution and in pharmaceutical preparations is described. The method is based on the diazotization coupling reaction of the intended compound with 4-amino benzoic acid (ABA) in alkaline medium to form an intense orange, water soluble dye that is stable and shows maximum absorption at 410 nm. A graph of absorbance versus concentration indicates that Beer’s law is obeyed over the concentration range of 0.5-30 ppm, with a molar absorbtivity 3.76×104 L.mol-1 .cm-1 depending on the concentration of SAL. The optimum conditions and stability of the colored product have been investigated and the method was applied successfully to the determination of SAL in dosage forms.

Colorimetric Determination of Amoxicillin in Pure and some Pharmaceutical Formulations Via Reaction with Potassium Permanganate as Oxidant Reagent

2019 ◽  
Vol 10 (02) ◽  
Author(s):  
Abbas Shebeeb Al-kadumi ◽  
Sahar Rihan Fadhel ◽  
Mohammed Abdullah Ahmed ◽  
Luma Amer Musa
Keyword(s):  
Potassium Permanganate ◽  
Pharmaceutical Preparations ◽  
Pharmaceutical Formulations ◽  
Atomic Emission ◽  
Basic Medium ◽  
Photometric Method ◽  
Colorimetric Determination ◽  
Spectrophotometric Methods ◽  
Label Claim

We proposed two simple, rapid, and convenient spectrophotometric methods are described for the determination of Amoxicillin in bulk and its pharmaceutical preparations. They are based on the measurement of the flame atomic emission of potassium ion (in first method) and colorimetric determination of the green colored solution for manganite ion at 610 nm formed after reaction of Amoxicillin with potassium permanganate as oxidant agent (in the second method) in basic medium. The working conditions of the methods were investigated and optimized. Beer's law plot showed a good correlation in the concentration range of 5-45 μg/ml. The detection limits and relative standared deviations were (2.573, 2.814 μg/ml) (2.137, 2.498) for the flame emission photometric method and (1.844, 2.016 μg/ml) (1.645,1.932) for colorimetric methods for capsules and suspensions respectively. The methods were successfully applied to the determination of Amoxicillin in capsules and suspensions, and the obtained results were in good agreement with the label claim. No interference was observed from the commonly encountered additives and expectancies.

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