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Hi sesame,
Need more info.
My best guess is that you can use 44.4 mg x 0.946 to get your A-weight.
Seems to me the trihydrate dried up a little bit. Therefore, my guess is that your assayed (apparent) content of the trihydrate exceeds to 100-mark slightly. What does it say on your CoA?
Best regards
EM.
❝ I have to weight equal to 44.4mg of atorvastatin from atorvastatin calcium trihydrated working standard.
❝ potency as atorvastatin is 94.6%
❝ potency as atorvastatin calcium is 98.7%
❝
❝ Please anyone can show me how to calculate for the weight... I'm confused.
Need more info.
My best guess is that you can use 44.4 mg x 0.946 to get your A-weight.
Seems to me the trihydrate dried up a little bit. Therefore, my guess is that your assayed (apparent) content of the trihydrate exceeds to 100-mark slightly. What does it say on your CoA?
Best regards
EM.
Complete thread:
- potency sesame 2010-11-01 19:14
![[Mix]](https://static.bebac.at/img/mix.png "open in Mix view")
- potency Helmut 2010-11-01 20:45
- potencyElMaestro 2010-11-01 21:07
- potency Helmut 2010-11-01 21:20
- potency ElMaestro 2010-11-01 21:50
- Stoichiometry Helmut 2010-11-01 22:04
- potency moblak 2010-11-03 09:00
- I was wrong ;-) Helmut 2010-11-06 18:18
- potency ElMaestro 2010-11-01 21:50
- potency Helmut 2010-11-01 21:20
- potency sesame 2011-01-13 19:11
Ing. Helmut Schütz