Chapter 32. Lab VII-5 Assay Vitamin C in Urine by Iodometric Titration

Equipment and Materials

You’ll need the following items to complete this lab session. (The FK01 Forensic Science Kit for this book, available from http://www.thehomescientist.com, includes the items listed in the first group.)

Materials from Kit

  • Goggles

  • Ascorbic acid (vitamin C) tablet, 500 mg

  • Graduated cylinder, 10 mL

  • Graduated cylinder, 100 mL

  • Iodine solution

  • Pipettes

  • Starch indicator solution

  • Test tubes

  • Test tube rack

Materials you Provide

  • Gloves

  • Water, distilled or deionized

  • Soft drink bottle, 500 mL, clean and empty

  • Specimen(s): urine (see text)

Warning

We’ll assume that you’re using your own urine, which presents no biohazard to you. (In fact, urine obtained from any healthy person is ...

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