PFAS-Safe Vials and Liners for Ultra-Trace Testing

Minimize Background Contamination in PFAS Analysis

Per- and Polyfluoroalkyl Substances (PFAS) testing demands unmatched precision. Even trace contamination from sample vials or closures can compromise results and regulatory compliance.

SEAL Analytical now offers a line of autosampler vials, liners, and closures engineered to reduce background interference in PFAS testing following EPA and ISO methodology. At industry-leading values, these new additions to our high-quality laboratory consumables are ready to lower your background contamination and improve your PFAS-testing experience.

Designed for Regulatory Compliance in PFAS Testing

These vials are ideal for labs testing under:

EPA Method 533 – Drinking water, 25 PFAS compounds
EPA Method 537.1 – Drinking water, 18 PFAS compounds
EPA Method 1633 – Broader range of environmental matrices

They support LC-MS/MS workflows and are compatible with most autosamplers.

Standard Vials Can Interfere with PFAS Results

Even trace contamination can compromise PFAS test results. Many standard lab vials can introduce background PFAS contamination, especially those made of glass or capped with PTFE-lined closures. This creates a serious concern when labs are working to meet low part-per-trillion or even part-per-quadrillion detection limits.

Why Labs Are Switching to Polypropylene Vials for PFAS Analysis

Traditional vial materials such as glass vials with PTFE-lined caps can leach PFAS, introducing unwanted background and compromising sensitive analysis. SEAL Analytical offers solutions to eliminate this risk through:

Polypropylene Construction – Minimizes PFAS adsorption and interaction
Polyimide/Silicone Closures – A high-performance alternative to PTFE liners
No PTFE Contact Surfaces – Reduces false positives and background levels
Quality Manufacturing – Manufactured to minimize contamination under ISO standards

While nothing is truly PFAS-free, these vials are designed to dramatically reduce background, particularly compared to PTFE-lined caps and glass containers.

PFAS-safe polypropylene vials and closures for minimized contamination in PFAS testing with background of water being poured into a glass — Reduce PFAS contamination and false positives by eliminating PTFE and glass contact surfaces

Available PFAS-Safe Vials and Closures

PFAS-Safe vials and closures are coming soon to our online parts & lab supplies store. All parts are currently available through phone and email orders, contact us at parts@seal-us.com for details and ordering.

Unlined Closures

These closures feature an integrated 10 mil sealing membrane that replaces separated liners, creating a clean, consistent contact surface. This design reduces handling variables and is well suited for single‑injection PFAS testing.

Unlined closures come in 9 mm R.A.M™ Top Seal™ in clear polypropylene as well as polyethylene variations. 11 mm Snap Top Cap™ and 13-425 mm Top Seal™ closures are also available.

Part No.	Description	Shelf	Case
5330-09	9 mm R.A.M™ Top Seal™, Solid Top, Clear Polypropylene Closure, 10mil Thick Septa	100	1000
5330PE-09	9 mm R.A.M™ Top SealTM, Solid Top, Clear Polyethylene, 10mil Thick Septa	100	1000
5200-11	11 mm Snap Top Cap™, Solid Top, Clear Polyethylene Closure, 10mil Thick Septa	100	1000
5330-13	13-425 mm Top Seal™ Solid Clear Closure, 10mil	100	1000

Lined Closures

These closures combine a 1 mm amber‑tinted polyimide layer with high‑purity silicone for lowered leachable content and preserved sample integrity. Designed for durability, they support elevated temperatures up to 130 °C and remain reliable for multi‑injection PFAS workflows, typically up to ten injections.

Lined closures come in several varieties including 9 mm R.A.M™ Ribbed, 11 mm and 13 mm Snap Top Cap™, and 13-425 mm Open Hole and Solid Propylene closures.

Assorted polyimide/silicone-lined vial closures on white background, compatible with multi-injection workflows — Polyimide and high-purity silicone materials minimize contamination from leaching and maintain seal integrity.

Part No.	Description	Shelf	Case
5390-09SFRB	9 mm R.A.M.TM Ribbed Royal Blue Closure, 1mm Thick Polyimide/Silicone lined	100	1000
5230-11B	11 mm Blue Snap Top CapTM, 1mm Thick Polyimide/Silicone lined	100	1000
5230-13	13 mm Clear Snap Top Cap, Polyimide/Silicone Lined	100	1000
806030-13W	13-425 mm White Open Hole Polypropylene Closure, Polyimide/Silicone	100	1000
806030-13SB	13-425 mm Blue Solid Polypropylene Closure, Polyimide/Silicone Lined

Close-up of polypropylene PFAS-safe vials in various volumes and cap styles on white background — Lightweight, chemically resistant, and ready for every stage of PFAS testing.

Polypropylene Vials

Chemically-resistant, lightweight, and economic, polypropylene vials are an excellent alternative to glass. These vials are designed to work in most autosamplers and are ideal for all aspects of PFAS analysis from sampling to testing.

These vials come in a wide-range of volumes from 100 µL to 2.5 mL, diameters in 9 mm, 11 mm, and 13-425 mm, as well as a variety of styles including R.A.M.™ and R.A.M.™ Limited Volume, Snap Ring™, Snap Seal™, crimp top, and threaded options.

Part No.	Description	Shelf	Case
30109P-1232	100-300 μL Polypropylene R.A.M.TM Limited Volume Vial, 9 mm Screw Thread, 12x32 mm	100	1000
30509P-1232	500 μL Polypropylene R.A.M.TM Limited Volume Vial, 9 mm Screw Thread, 12x32 mm	100	1000
30709P-1232	750 μL Polypropylene R.A.M.TM Limited Volume Vial, 9 mm Screw Thread, 12x32 mm	100	1000
31509P-1232	1.5 mL Polypropylene R.A.M.TM Vial, 9 mm Screw Thread, 12x32 mm	100	1000
30111P-1232	100-300 μL Polypropylene, 11 mm Snap RingTM/Crimp Top Limited Volume Vial,12x32 mm	100	1000
30511P-1232	500 μL Polypropylene, 11 mm Snap RingTM/Crimp Top Limited Volume Vial, 12x32 mm	100	1000
30711P-1232	750 μL Polypropylene, 11 mm Snap RingTM/Crimp Top Limited Volume Vial, 12x32 mm	100	1000
31511P-1232	1.5 mL Polypropylene, 11mm Snap SealTM/Crimp Top Vial, 12x32 mm	100	1000
32513P-1545	2.5 mL Polypropylene Limited Volume Vial 13-425 mm Threaded, 15x45 mm	100	1000
32513PS-1545	2.5 mL Polypropylene Limited Volume Vial 13 mm Crimp/Snap Ring™, 15x45 mm	100	1000