DIN 38409-59 Compliant Analysis of Adsorbable Organically Bound Halogens

Analysis of Adsorbable Organic Bound Halogens Compliant with DIN 38409-59 30 May 2023 14:00 - 15:15 Metrohm Turkey Webinar Platform Analysis of halogenated organic compounds in environmental samples has been mandatory in many countries for decades. For this purpose, the AOX (adsorbable organically bound halogens) total parameter is used to determine the amount of adsorbable organically bound chlorine, bromine and iodine in water samples. Current standards, DIN ISO 9562 and EPA Method 1650, describe the determination of AOX through adsorption followed by combustion and microcoulometric titration. However, the use of titration as a detection technique only permits the determination of AOX expressed as chlorine, but does not permit the determination of the separate fractions of AOCl, AOBr and AOI or AOF (adsorbable organically bound fluorine). The new DIN 38409-59 standard enables the determination of AOF, AOCl, AOBr and AOI as separate fractions and CIC-AOX(Cl) total parameter using Combustion Ion Chromatography (CIC) technique. Thus, the gaps left by DIN ISO 9562 and EPA Method 1650 are closed and a standardised approach is provided for reliable and reproducible results, including sample preparation. As Metrohm Turkey, in this session, which is the first of our 2023 Ion Chromatography webinars, while focusing on the world of organically bound halogens, we aim to present detailed and comprehensive information about the Combustion Ion Chromatography (CIC) technique, which has been validated within the framework of DIN 38409-59 standard in water and environmental samples. Some of the topics we will cover within our webinar content:

• Life cycle of per- and polyfluoroalkyl substances (PFAS)
• Basic definitions: TF (total fluorine), TOF (total organic fluorine), TIF (total inorganic fluorine), AOF (adsorbable organically bound fluorine), EOF (extractable organically bound fluorine)
• Targeted and non-targeted screening methods in PFAS analysis
• Fundamentals of Metrohm Combustion Ion Chromatography (CIC) technique
• Determination of AOF and AOX by Combustion Ion Chromatography technique according to DIN 38409-59 standard
• Determination of Total Organic Fluorine in aqueous solutions

Our webinar organisation has been completed. The recording of the session will be uploaded to our YouTube channel shortly. You can visit the Metrohm Turkey YouTube channel for all our recorded webinars: https://www.youtube.com/metrohmturkey Metrohm Turkey Academy Team