@Qingdao Sigma Chemicals Good evening. What impurity analysis do you perform on your raw API and / or finished product batches?
Have you had a 3rd party analytical lab perform a non targeted impurity screen using GCMS (LCMS as well for higher BP impurities)? Metals screen with ICP? I understand you don't possess these tools in house from your intro posts. Is that still correct?
Yes I understand most subscribers now do purity checks on raws and finished products via HPLC. I want to understand how you are raising the bar for harm reduction with impurity analysis (in addition to purity analysis).
Thank you in advance for your thoughts.