Chemical Forums
Chemistry Forums for Students => Analytical Chemistry Forum => Topic started by: research123 on January 16, 2012, 04:57:34 PM
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I found the peroxide value of cottonseed oil by titration. To find the antioxidizing abilities of resveratrol, I added that to the cottonseed oil. The titration showed that the peroxide value increased from 110 to about 130. I did the same method with BHT; BHT decreased the peroxide value of cottonseed oil from 110 to 28. What would resveratrol, an antioxidant, increase the peroxide value?
Thank you
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From what source did you get the resveratrol? Are you certain of its purity? I would first look for experimental error in a case like this. Repeat the experiment, if you haven't already. Then check the purity of your reagents. Did you use cottonseed oil from the same batch in both tests?
I apologize if it seems like I'm picking on obvious things, but in my experience the obvious is the problem 90% of the time.