Naked Science Forum

Non Life Sciences => Chemistry => Topic started by: Falcon on 12/08/2009 12:40:18

Title: How to determine how much aspirin is in aspirin tablets?
Post by: Falcon on 12/08/2009 12:40:18

hey,

I'm doing a chem ERT on aspirin
the task is to evaluate two different techniques that can be used to determine the purity of aspirin tablets

IE we have to determine how much of the actual chemical aspirin there is in a tablet.

The first technique we are given is volumetric analysis which involves backwards titrations etc

i was wondering if anybody knew any other techniques that could be interesting to research, or where i could find information about it

thanks for the help

Title: How to determine how much aspirin is in aspirin tablets?
Post by: Bored chemist on 12/08/2009 19:25:32

If I was doing it I'd use HPLC.
http://en.wikipedia.org/wiki/HPLC
But I doubt that option is open to you.
Is the technique you are given and acid/base titration or a redox titration? Both sorts would work.

Title: How to determine how much aspirin is in aspirin tablets?
Post by: Falcon on 13/08/2009 23:35:54

awesome

we don't actually have to do it so not being ble to do it won't be a problem

thanks again