personal experience and ratings?
I've only tired piracetam from bulknutrition and so far i think its greats but i want to try it out from another company to see if there is a difference.
thanks
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Which company has the best piracetam from your exp
Started by
nomi
, Mar 08 2006 02:15 AM
2 replies to this topic
#2
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Posted 04 April 2006 - 11:15 AM
If you notice a difference then you should start worrying because at least one of the products is going to be contaminated!i want to try it out from another company to see if there is a difference.
FWIW, I bought some piracetam from bulknutrition 6 weeks ago and a friend of mine ran a 1% solution of it through an ICP-ES yesterday: no measurableable heavy metal contamination -- so far, so good...
Will try to get it analysed for purity on a LC system in the next few days.
#3
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Posted 12 April 2006 - 11:21 AM
Update:
Now had the sample analyzed using HPLC. There was a very small peak on the trailing edge of the main peak, indicating a small impurity (less than 0.1%). My chemist friend thinks it most likely is the Piracetam molecule where the NH2 is substituted by a carboxyl group (due to degradation).
Since it is such a small impurity, we'll probably leave it at this.
Now had the sample analyzed using HPLC. There was a very small peak on the trailing edge of the main peak, indicating a small impurity (less than 0.1%). My chemist friend thinks it most likely is the Piracetam molecule where the NH2 is substituted by a carboxyl group (due to degradation).
Since it is such a small impurity, we'll probably leave it at this.
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