How to select laboratory consumables for PFAS testing

Start with what actually touches the sample

Sample bottles and containers, filtration products, pipette tips, centrifuge tubes, and syringes are all direct sample-contact points—each is a potential background contamination source in a PFAS method. Map your workflow and identify every touchpoint before assuming filters are the only thing that matters.

Bottles and sample containers

PFAS-free sample bottles matter for both collection and storage—background contamination introduced at collection can't be corrected later in the lab. See our PFAS-free labware guide.

Filtration

PFAS-free syringe filters and membranes for any filtration step in the workflow—covered in our PFAS-free products overview.

Liquid handling

Pipette tips are an easy-to-overlook contamination point since they touch every transfer. See our PFAS-free pipette tips guide for what to check beyond the PFAS-free designation itself (fit, volume range, filter options).

What the source-designated claim does and doesn't tell you

Across a consumable list, "PFAS Free" designations are typically supplier-provided wording, not independently verified for every SKU and lot. See our PFAS evidence guide for how to evaluate and document these claims for a defensible testing program.

Beyond the product list

Field and procedural contamination sources—equipment, packaging, and handling practices—matter as much as the consumables themselves. See our guide on reducing PFAS background contamination for the full picture.