LCGC Europe
The authors provide suggestions for the sample pretreatment and analysis of aerosol particles including the use of on-line SFE–LC–GC–MS, GCXGC and LC–MS. Although each technique has its merits, the novel multidimensional systems and those integrating sample pretreatment with the final analysis proved to be valuable tools in aerosol analysis.
Understanding FDA Recommendations for N-Nitrosamine Impurity Levels
April 17th 2025We spoke with Josh Hoerner, general manager of Purisys, which specializes in a small volume custom synthesis and specialized controlled substance manufacturing, to gain his perspective on FDA’s recommendations for acceptable intake limits for N-nitrosamine impurities.