Product Guide for PFAS Analysis - A Methods-Based Reference to Lab Supplies for PFAS Testing

Importance of the topic

PFAS are persistent environmental pollutants found across sampling sites, labs, and instruments. Their ubiquity and tendency to adhere to common materials can cause background contamination and analyte loss, making rigorous supply selection and system qualification essential for reliable quantification.

Objectives and overview of the guide

This product guide aims to assist laboratories in selecting appropriate supplies for PFAS testing according to EPA, ISO, ASTM, and DIN protocols. It outlines best practices for preventing contamination and retention losses, and provides method-aligned recommendations for labware, SPE products, chromatographic columns, and accessories.

Methodology and instrumentation

• Sampling and sample prep: polypropylene collection vessels, PTFE-free vials and caps, filtration devices
• SPE products: Resprep S-DVB reversed-phase cartridges, WAX polymeric cartridges, CarboPrep cleanup tubes
• Vacuum manifolds and pumps: Quick-Replace SPE QR-12/QR-24 manifolds, Rocker series oil-free vacuum pumps
• Chromatography: PFAS delay column, Raptor and Force C18 LC columns (SPP/FPP), low-pressure inlet filters
• HPLC maintenance: stainless-steel survival kits with tubing, fittings, ferrules, and tools
• Mobile phase components: filters, solvent transfer lines, PTFE tubing compatible with UHPLC/HPLC

Main results and discussion

• Table I categorizes lab supplies by testing method, linking each standard to its recommended cartridges, columns, and accessories.
• Table II lists target PFAS analytes per method, enabling labs to verify compatibility and detection limits.
• Use of a PFAS delay column is highlighted to trap system-borne PFAS and improve trace-level accuracy.

Benefits and practical applications

• Method-specific supplies minimize background signals and maximize analyte recovery across diverse matrices (drinking water, wastewater, soil, biota).
• High-purity SPE sorbents and PTFE-free vials prevent sample adsorption and contamination, supporting low-ng/L detection limits.
• Core-shell LC columns and robust vacuum pumps streamline workflow and maintain system integrity.

Future trends and possibilities

Advances may include development of ultra-low-blank materials, on-line SPE integration, expanded sorbent chemistries for ultrashort-chain PFAS, and automated QC workflows in line with emerging global regulations.

Conclusion

Reliable PFAS analysis depends on careful selection and qualification of lab supplies throughout the sample pathway. Aligning equipment and consumables with method requirements ensures accurate, reproducible results. Support from specialized suppliers like Restek can accelerate method development and compliance.