A new derivatization procedure for the determination of cephalexin with 1,2-naphthoquinone 4-sulphonate in pharmaceutical and urine samples using solid-phase extraction cartridges and UV–visible detection

This publication has 28 references indexed in Scilit:

• Comparative study on the determination of cephalexin in its dosage forms by spectrophotometry and HPLC with UV-vis detection
  Microchimica Acta, 1997
• Extractive-Spectrophotometric Determination of Furosemide with Sodium 1,2-Naphthoquinone-4-Sulphonate in Pharmaceutical Formulations.
  Analytical Letters, 1997
• Generalized H-point standard additions method for analyte determinations in unknown samples
  Analytica Chimica Acta, 1995
• Extractive-Spectrophotometric Determination of Ephedrine with Sodium 1,2-Naphthoquinone-4-Sulphonate in Pharmaceutical Formulations
  Analytical Letters, 1994
• Development of the H-point standard additions method for analyte determinations in unknown matrix: Location of linear matrix spectral interval
  Analytica Chimica Acta, 1993
• Selective Spectrophotometric Determination of Some Cephalosporins in Pharmaceutical Formulations
  Analytical Letters, 1991
• Analytical investigations of β-lactam antibiotics in pharmaceutical preparations—II. Spectrophotometric determination of cephalexin, cephradine, ampicillin and amoxycillin using copper(II) acetate as a completing agent
  Journal of Pharmaceutical and Biomedical Analysis, 1988
• Analytical investigations of β-lactam antibiotics in pharmaceutical preparations — I. Spectrophotometric determination of cephalexin, cephradine, ampicillin and amoxycillin using paramolybdate anion
  Journal of Pharmaceutical and Biomedical Analysis, 1988
• Quantitative analysis of phenethylamine derivatives by thin layer chromatography. Determination of psychotropic drugs and ephedra bases
  Microchimica Acta, 1978
• Reaction of some sympathomimetic amines with sodium 1,2-naphthoquinone-4-sulphonate
  Microchimica Acta, 1976