alexa Indirect determination of neomycin trisulphate as sulphate by column coupling capillary isotachophoresis.
Pharmaceutical Sciences

Pharmaceutical Sciences

Pharmaceutica Analytica Acta

Author(s): Kurzawa M, Jastrzebska A, Szyk E

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Abstract Anionic capillary isotachophoresis (cITP) with conductometric detection was used for indirect determination of neomycin trisulphate (NMS) as sulphate anion. The following electroylets were tested: leading (LE)--8 mM HCl adjusted with beta-alanine to pH = 3.55, 3 mM bis-tris-propane and 0.2\% hydroxyethylcellulose and terminating (TE): 5 mM citric acid; 5 mM formic acid and 5 mM caproic acid. The calibration graphs of sulphates concentration were linear in the range 3.55 to 25.90 mg/dm3 with recoveries between 94.50-99.70\%. The method was tested on pharmaceutical preparation Enterogast.
This article was published in Acta Pol Pharm and referenced in Pharmaceutica Analytica Acta

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