Patent ID: 11860140
Assignee: SUFFOLK COUNTY WATER AUTHORITY
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A method for facilitating detecting PFAS analytes in a sample comprising:
injecting a volume of the sample into an LC/MS/MS system that is configured to detect one or more PFAS analytes of formula CnF(2n+1)—X within an unconcentrated sample;
wherein:
the LC/MS/MS includes ESI;
n is 3, 4, 5, 6, 7, 8 or 9; and
—X is —SO3H, —CO2H, −SO3−, or —CO2−;

subjecting the injected volume of the sample to ESI conditions that include a sheath gas flow of approximately 8 L/min to approximately 12 L/min; and
detecting one or more PFAS analytes within the sample.