
Liquid chromatography–ion mobility spectrometry–high-resolution mass spectrometry (LC–IMS–HRMS) shows elephant seal pups carry more PFAS than their mothers do.
This article will discuss several aspects of working with high purity water in LC-MS analyses including quality and handling. Solutions will be proposed for optimal water purification based on the use of complementary purification technologies combined with application-specific final filtering, and finally, the importance of water purification system maintenance will be discussed.





