The Analytical Laboratory of the SGL in Lübbenau/Spreewald has been successfully carrying out tests for per- and polyfluorinated alkyl substances (PFAS) for two years now. PFAS are increasingly in the focus of science, industry and authorities, as they are persistent, poorly degradable chemicals that can be detected in the environment and in biological systems. In view of potential health risks and increasing regulatory requirements (PFAS limit values have been in place in Germany for two years), the precise analysis of this group of substances is becoming increasingly important.
Modern analytics for reliable results
SGL's analytical laboratory uses state-of-the-art analytical techniques to reliably detect even the lowest concentrations of PFAS in various samples. Here, the online enrichment of the analytes plays a central role as this technique can achieve limits of quantification in the range of 1 ng/l in particular. This also greatly reduces dummy values that are introduced into the system during sample preparation. The samples analyzed include soil, water from the environmental sector and industrial products. The analytical laboratory of the SGL purchased modern analytical equipment especially for this purpose.
A central component of PFAS analysis is liquid chromatography coupled with mass spectrometry (HPLC-MS), one of the most sensitive methods for identifying and quantifying these substances. This technique can be used to reliably analyze over 40 different PFAS compounds - including the substances PFOA (perfluorooctanoic acid) and PFOS (perfluorooctanesulfonic acid), which are regulated in many countries. The company has been accredited for this method since 2022 and can analyze over 20 different PFAS compounds listed in the new Drinking Water Ordinance.
"Over the past two years, we have continuously expanded and optimized our range of analyses. This puts us in an excellent position to support industry, authorities and research institutes with precise and reliable data" explains Steffen Thoma, Head of the Analytical Laboratory of the SGL.
Increasing demand due to stricter legal requirements
With the increasing regulation of PFAS at national and international level, the demand for reliable analytical methods is growing. The European Union has already introduced strict limits for PFAS in drinking water, food and industrial emissions. The topic is also becoming steadily more relevant in Germany due to the new Drinking Water Ordinance and various environmental regulations. In addition to regular PFAS analyses of drinking water and soil samples, such analyses were also carried out on food, clothing and industrial intermediate and waste products.
SGL's analytical laboratory actively contributes to the implementation of these requirements by supporting companies and institutions in monitoring compliance with limit values and identifying potential contamination at an early stage.
"The reliable analysis of PFAS is an important basis for environmental and consumer protection. Our aim is not only to provide our customers with precise measured values but also to give expert advice and support in evaluating the results" says Steffen Thoma, Head of the Analytical Laboratory of the SGL.
