Analysis of Diet Tonic Water Using Capillary Electrophoresis. An Undergraduate Instrumental Analysis Experiment

• Harvey B. Herman ^[1] ; John R. Jezorek ^[1] ; Zhe Tang ^[1]
  1. [1] University of North Carolina at Greensboro

     University of North Carolina at Greensboro

     Township of Morehead, Estados Unidos

     
• Localización: Journal of chemical education, ISSN 0021-9584, Vol. 77, Nº 6 (June), 2000, págs. 743-743
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • An experiment for instrumental analysis is described in which components of diet tonic water are determined using capillary electrophoresis. Separation of quinine, saccharin, and benzoate in pH 7 phosphate buffer, with phenol as internal standard, is accomplished in about 12 minutes. The equipment requirements are modest: UV detection on an unmodified column. One of the components, quinine, is quantitated using a four-point standard addition calibration curve.