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- Posts: 7
- Joined: Tue Jun 26, 2012 9:14 pm
If you ever have any other questions or want to bounce an idea off someone for a second opinion, please don't hesitate to contact me.
Cheers
Discussions about HPLC, CE, TLC, SFC, and other "liquid phase" separation techniques.
Apple_insci wrote:
I found there are two ways to calculate potency when issuing a COA:
1. potency = 100%- total impurities by HPLC-- water content% - residual solvent% - counter ion%
2. potency = (100%- total impurities by HPLC) x (100% - water content% - residual solvent% - counter ion%)
Which way is more accurate to use for issuing a COA? Can anyone tell me where I can find the origins of these two equations?
Thanks~
Apple
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