January 24, 2022, 05:07:25 AM
Forum Rules: Read This Before Posting


Topic: Question about determining Vitamin C content of pineapple juice.  (Read 163 times)

0 Members and 1 Guest are viewing this topic.

Offline Rickyb03

  • Very New Member
  • *
  • Posts: 1
  • Mole Snacks: +0/-0
Question about determining Vitamin C content of pineapple juice.
« on: December 28, 2021, 08:58:12 PM »
I was using the method described in
"https://www.canterbury.ac.nz/media/documents/science-outreach/vitaminc_iodine.pdf"
but used fresh pineapple juice instead of orange juice.

During titrations, I noticed that the colour of the analyte would change after some time.

Instead of remaining as dirty green the colour of the analyte would change to a dark yellow after around 30 minutes.
What could be the cause of this change?

Sponsored Links