Analysis of Citric Acid in Beverages:: Use of an Indicator Displacement Assay

• Alona P. Umali ^[2] ; Eric V. Anslyn ^[2] ; Aaron T. Wright ^[1] ; Clifford R. Blieden ^[2] ; Carolyne K. Smith ^[2] ; Tian Tian ^[2] ; Jennifer A. Truong ^[2] ; Caitlin E. Crumm ^[2] ; Jorge E. Garcia ^[2] ; Soal Lee ^[2] ; Meredith Mosier ^[2] ; Chester P. Nguyen ^[2]
  1. [1] Pacific Northwest National Laboratory

     Pacific Northwest National Laboratory

     Estados Unidos

     
  2. [2] University of Texas
• Localización: Journal of chemical education, ISSN 0021-9584, Vol. 87, Nº 8 (August), 2010, págs. 832-835
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • The use of an indicator displacement assay permits the visualization of binding events between host and guest molecules. An undergraduate laboratory experiment is described to demonstrate the technique in the determination of citric acid content in commercially available beverages such as soda pop and fruit juices. Through the technique, students can learn supramolecular and analytical chemistry concepts via a practical, real-world application.