so we ordered simple Erweka planetary mixer AR 403 for wet granulation and i have some question about mixing process:
1- the mixer doesn’t have facility of measuring torque values. Any recommendation of separate device we can buy to measure torque values. and how it can be attached to the mixer??
2- Is it mandatory to test blend homogeneity by sampling and analysis by HPLC? the critical point is how to do sampling that represent batch accurately.
3- in the beginning of mixing process, we will be mixing two liquids of completely different viscosity (one very thick and another non-viscous), which blade shape would be recommended? whisk or kneading hook?
4- lets assume we blend liquids using whisk, then for adding powders we take out the whisk and use kneading hook to mix powders with liquids. Is it ok to change blade during mixing or one blade shape should be used the whole process?