few powders

[RonnyT Senior Member Find all posts View Profile Close RonnyT]

Some powders are analysed too as could be seen in pictures.

In case someone wonders why a API can be over 100% pure (like the enanthate) is that the accuracy when messured by HPLC is not optimal. This particular item is also messured by UV. The result of the UV/VIS determination is validated, the method used for HPLC is not. UV/VIS for the Enanthate was 97.6% and thus according to Ph. Eur

[aliosa Junior Member Find all posts View Profile Close aliosa]

Ronny where from you buy the reference standards for the HPLC?

[BigTex Junior Member Find all posts View Profile Close BigTex]

All three of these came from the same source?