Obtaining ultrapure water for sensitive PFAS analysis by LC-MS

Discover how the Milli-Q^® water purification system is suitable for the most sensitive PFAS analyses by LC-MS/MS. Ultrapure water produced by a Milli-Q IQ 7000 system fitted with a LC-Pak^® polisher at the point-of-dispense was tested for 40 PFAS compounds according to the draft EPA 1633 method. None of the 40 compounds tested were detected in the water.