Ok all,
Will get resv shipped from China bc bulk orders.
I will post pic and HPLC soon
Posted 18 February 2008 - 05:27 AM
Posted 18 February 2008 - 07:06 AM
Posted 18 February 2008 - 07:29 AM
Posted 18 February 2008 - 04:16 PM
Posted 18 February 2008 - 04:57 PM
Here is HPLC and pic of raw powder at factory:
Posted 18 February 2008 - 05:04 PM
Thats great Goku,
Can you get an independent test done here in a US lab? Remember, VP stated 99% as well, but came back as only 87%.
It will help folks here know they are getting what they paid for.
A
Posted 20 February 2008 - 06:20 AM
Edited by goku, 20 February 2008 - 06:42 AM.
Posted 20 February 2008 - 06:31 AM
96%?
No, the HPLC is clearly 98%, read again. Definitely >98% if you know how to read these
Posted 20 February 2008 - 06:36 AM
Posted 20 February 2008 - 06:59 AM
Posted 20 February 2008 - 07:05 AM
I thought that was going to be the case, but it's not very satisfying. Why can't they evaporate it? What is the solvent, anyway? If it's ethanol, then no big deal, but there are a lot of solvents that I wouldn't want to ingest. If you're paying for a kilo, but there's 40 grams of solvent, then you can't really call it 98%... And the resolution of the chromatogram was so low that you can't see any of the minor peaks that have to be there.And Hedgehog, I asked lab tech and he says:
"before 3 mins that peak area ( 1.994 306089) it is come from Solvent, not from the Resversatrol , so can not count in HPLC"
He says that's why your calculations seem to say 96%, check again and you will see it is 98%
Posted 20 February 2008 - 09:37 AM
Posted 20 February 2008 - 05:01 PM
Posted 20 February 2008 - 05:51 PM
I thought that was going to be the case, but it's not very satisfying. Why can't they evaporate it? What is the solvent, anyway? If it's ethanol, then no big deal, but there are a lot of solvents that I wouldn't want to ingest. If you're paying for a kilo, but there's 40 grams of solvent, then you can't really call it 98%... And the resolution of the chromatogram was so low that you can't see any of the minor peaks that have to be there.And Hedgehog, I asked lab tech and he says:
"before 3 mins that peak area ( 1.994 306089) it is come from Solvent, not from the Resversatrol , so can not count in HPLC"
He says that's why your calculations seem to say 96%, check again and you will see it is 98%
Edited by hedgehog_info, 20 February 2008 - 06:04 PM.
Posted 20 February 2008 - 08:33 PM
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