PFAS Navigating Analytical Method Options, Part 3

The chemistry and analysis of PFAS is unique and challenging, and there is no consensus best method for all target analytes or matrices. The USEPA published Method 537 in 2008 with an update in 2018. This method is applied to 18 PFAS compounds in drinking water matrices only. As of November 2019 EPA published an additional drinking water method, 533. This method was developed to target shorter chain PFAS and utilizes different analytical techniques than method 537.1. There are similarities and disparities between the two drinking water methods.

Several other methods have been published for PFAS in non-potable and solid matrices including ASTM D7979, D7968, SW-846 Methods 8327 and 8421. EPA has finalized method 1633 which applies to a range of matrices for 40 PFAS. The Department of Defense (DoD) has compiled quality assurance criteria for PFAS testing by various methods in the Quality Systems Manual (QSM). In order to meet the industry's needs over the past two decades, environmental laboratories developed user-defined methods suitable for a long list of compounds in a wide range of matrices, from traditional environmental water and soil samples, to air, blood, food, products, and more.

An introduction to emerging technologies such as TOP Assay, TOF, and Non-Target Analysis will be provided. A discussion on how these technologies compliment the standard methods will be included.

This presentation aims to provide clarity through a comparison of methods and what they are applicable to with a look at what is coming down the pike.

Original Airdate:  Tuesday, March 26, 2024
 
Length:  60 minutes 

Presenter: Taryn McKnight - Eurofins Environment Testing