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This page provides tables that list the products used in promulgated methods for Per- and polyfluoroalkyl substances (PFAS) analysis, organized by method and step for easy reference. As new methods are released, this page will be updated.

Performance of Whatman™ 40 and 41 Quantitative Ashless Filter Paper Grades in Mining Quality Control Applications

This page shows the performance of Whatman™ Grade 40 and Grade 41 quantitative ashless filter paper in three metal content tests, high molybdenum, lead, and zinc for the mining industry.

Safe Drinking Water Act & Clean Water Act – What is it?

The Safe Drinking Water Act reflects the primary drinking water regulation. Drinking water here means finished drinking water from the plant and the distribution lines. But the Safe Drinking Water Act covers also the ground water sources for raw water

Phosphate in Groundwater and Surface Water: A Rapid and Reliable Determination Method using the Photometric Spectroquant® Test

The analysis of low concentrations of PO4-P in natural, uncontaminated waters is often challenging. The Spectroquant® photometric test provides an easy-to-use and sensitive method for quantification with results comparable to DIN EN ISO 6878.

Calculating Your Working Tolerance: A Guideline

Guideline to calculate your working tolerance - Certified Standard Solutions (CRM)

Drinking Water Testing by Ion Chromatography using Ultrapure Water

This study reviews the suitability of ultrapure water for the IC analysis of drinking water. Inorganic ions and disinfectant by-products (DBPs) were assessed.

Neonicotinoids Pesticides and Metabolites

Neonicotinoids have established themselves as key components in insecticides because of their unique selectivity. The mode of action is similar to nicotine.

Pseudomonas Media and Tests

An article concerning the detection, identification, differentiation, and cultivation of Pseudomonas species.

Sensitive Determination of Iron in Drinking Water, Mineral Water, Groundwater, and Spring Water Using Rapid Photometric Tests

Spectroquant® Iron Test - a suitable alternative to ICP or AAS for determination of iron in drinking water, mineral water, groundwater, and spring water.

Fast and High-Resolution LC-MS Separation of PFAS

Liquid Chromatography–Mass Spectrometry (LC-MS) separation of 33 PFAS (Per- and poly-fluoroalkyl substances) using a superficially porous silica particles (SPP) based Ascentis® Express C18 column.

EPA LEAF Methods for Leaching Assessment

This article discusses the differences and benefits of using EPA LEAF methods as an alternative to TCLP for solid materials. Employed in the laboratory, LEAF methods provide improved control of key factors that can affect leaching in on-site TCLP testing.

Analytical Method: Urea in Water and Wastewater, Enzymatic Determination

Urea in water and wastewater, enzymatic determination - Photometric determination using the indophenol blue method after cleavage of the urea

Importance of Ultrafiltration in Countering Climate Change

Filtration and ultrafiltration techniques in environmental sampling and environmental research.

LC-MS Analysis of PFAS Compounds in EPA Methods 537.1, 533 and 8327

LC-MS method-based separation and determination of 32 short-chain and long-chain PFAS (Per- and poly-fluoroalkyl substances) compounds from drinking water following 3 EPA methods Method 533, 537, and 537.1. EPA 8327

Ultrapure Water to Assess Toxic Elements in Environmental Analyses

See the data showing how Milli-Q® ultrapure water meets the stringent purity requirements for reliable trace element analyses of environmental samples.

PFAS Testing Methods and Guidance for Sample Filtration

Validation of Millex® PES syringe filters in PFAS testing of water samples using EPA method 537.1.