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PFAS Analysis by U.S. EPA Method 537.1 for Drinking Water

03 Oct 2025

feature EVAR4284
  • Sample Matrix: drinking water
  • Sample Preparation: S-DVB solid-phase extraction
  • Detection Technique: LC-MS/MS

Determination of Selected Per- and Polyfluorinated Alkyl Substances in Drinking Water by Solid Phase Extraction and Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS)

U.S. EPA Method 537.1 is used for the analysis of 18 PFAS in drinking water. It combines solid-phase extraction sample preparation using styrene-divinylbenzene cartridges with LC-MS/MS analysis on a C18 column. The method allows flexibility in some aspects, such as evaporation technique, separation technique, mobile phase composition, LC column and conditions, and detector conditions, but changes to sample collection, preservation, and extraction and quality control requirements are prohibited. The full analyte list and recommended products for PFAS analysis in drinking water by Method 537.1 are provided below. In addition, you can register and directly compare analyte lists and matrices across PFAS analysis methods here or visit www.restek.com/PFAS to explore our technical resources for PFAS analysis.

Analyte List for U.S. EPA Method 537.1 for PFAS Analysis

PFAS acronyms, compound names, and CAS numbers vary across methods and guidelines, and they also depend on compound form (e.g., neutral vs. salt). The following list uses standardized terminology to allow easy comparison across the methods and guidelines in our comprehensive guide. Please refer to U.S. EPA Method 537.1 for method-specific nomenclature.

AcronymCompound NameCAS#
NEtFOSAAN-ethyl perfluorooctanesulfonamidoacetic acid2991-50-6
NMeFOSAAN-methyl perfluorooctanesulfonamidoacetic acid2355-31-9
PFBSPerfluoro-1-butanesulfonic acid375-73-5
PFDAPerfluorodecanoic acid335-76-2
PFDoAPerfluorododecanoic acid307-55-1
PFHpAPerfluoroheptanoic acid375-85-9
PFHxSPerfluoro-1-hexanesulfonic acid355-46-4
PFHxAPerfluorohexanoic acid307-24-4
PFNAPerfluorononanoic acid375-95-1
PFOSPerfluorooctanesulfonic acid1763-23-1
PFOAPerfluorooctanoic acid335-67-1
PFTeDAPerfluorotetradecanoic acid376-06-7
PFTrDAPerfluorotridecanoic acid72629-94-8
PFUnAPerfluoroundecanoic acid2058-94-8
HFPO-DA, GenXHexafluoropropylene oxide dimer acid13252-13-6
9Cl-PF3ONS9-Chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (F-53B Major)756426-58-1
11Cl-PF3OUdS11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor)763051-92-9
ADONA4,8-Dioxa-3H-perfluorononanoic acid919005-14-4

Recommended Products for U.S. EPA Method 537.1 for PFAS Analysis

Analytical LC Columns:


Raptor C18, 2.7 µm, 50×2.1 mm HPLC-Säule
Force C18, 1.8 µm, 50 x 2.1mm LC-Säule

Delay Columns:


PFAS Delay-Säule, 5 µm, 50×2.1 mm HPLC-Säule

PFAS delay column: 5 µm, 50 x 3.0 mm (cat.# 580959 [custom product])

Guard Columns:


UltraShield UHPLC Vorsäulen-Filter, 0.2 μm Fritte, 1
EXP Direct Connect-Halter für EXP Vorsäulenkartuschen, enthält Fittings und Ferrules
Raptor C18 EXP Vorsäulenkartusche, 2.7 µm, 5 x 2.1 mm, 3er Pack

Standards:


EPA 537.1 PFAS Kalibrierstandard, 2 µg/mL, Methanol (1 mM KOH), 1 mL/Ampulle

Sample Prep:


SPE-Kartusche, Resprep S-DVB, 500 mg/6 mL, 30er Pck.

Sample Reservoirs:


SPE Leerröhrchen, Probenreservoir, 75 mL, Polypropylen, 12er Pack
SPE Verbinder, 1, 3, 6, 10 oder 15 mL, Polypropylen, 15er Pack

Vacuum Manifolds:


Resprep QR-24 Vakuum-Absaugstation
Resprep QR-12 Vakuum-Absaugstation

Vacuum Pumps:


Chemker 300 PTFE Vakuumpumpe, 20 L/min, AC 110 V, 60 Hz
Chemker 300 PTFE Vakuumpumpe, 18 L/min, AC 220 V, 50 Hz

General Lab Supplies:


Screw-Thread Polypropylen Vials mit begrenztem Volumen, 9 mm, 700 μL, 12 x 32 mm, 100er Pack
Screw-Thread Polypropylen Vials mit begrenztem Volumen, 9 mm, 700 μL, 12 x 32 mm, 1000er Pack
2.0 mL, 9 mm Solid Top-Polyethylen Kappen, Screw-Thread, 10 mil dicke Membran, farblos, 100er Pack
2.0 mL, 9 mm Solid Top-Polyethylen Kappen, Screw-Thread, 10 mil dicke Membran, farblos, 1000er Pack
Leere Zentrifugenröhrchen, 50 mL, Polypropylen mit Kappe, 50er Pck.
Leere Zentrifugenröhrchen, 50 mL, Polypropylen mit Kappe, 500er Pck.
Norm-Ject Kunststoffspritze, 10 mL Luer-Lock-Spitze, 100er Pck.
Norm-Ject Kunststoffspritze, 5 mL Luer-Lock-Spitze, 100er Pck.

Discover More Solutions for PFAS Analysis!

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  • Restek Corporation

    Restek is a leading provider of chromatography columns, accessories, and certified reference materials. Trust Restek for reliable, high-quality analytical solutions.

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