Technical Notes
Method development for nitrosamine impurities
Retention chemistry, deuterated internal standards and blank contamination control for nitrosamine methods, with a worked conversion from acceptable intake to working concentration.
Resources
Technical Notes
Practical notes on working with impurity standards: what a certificate of analysis actually covers, and how nitrosamine methods are built, retained and defended.
Technical Notes
How to read a Certificate of Analysis
Which fields on a certificate of analysis decide whether an impurity or reference standard is fit for your method, and which ones get skipped.