US EPA Finalizes Method 1621 for AOF Identification

The US Environmental Protection Agency (EPA) has officially finalized Method 1621, a groundbreaking approach in identifying and quantifying adsorbable organic fluorine (AOF) in aqueous matrices.

What is Method 1621?
-Determination of Adsorbable Organic Fluorine (AOF) in Aqueous Matrices by Combustion Ion Chromatography (CIC)-
Crafted specifically for the Clean Water Act (CWA), this method employs the power of Combustion Ion Chromatography (CIC) to estimate AOF concentration. It goes beyond #PFAS,—Method 1621 covers a spectrum of fluorinated compounds, from pesticides to pharmaceuticals, providing a comprehensive view of water quality.

Key Highlights:

  • Advanced Screening: Method 1621 offers fast and reliable screening for organic fluorine, setting a new standard in analytical precision.
  • Unique Challenges Addressed: From PFAS analytes adhering to sample containers to potential interference from inorganic fluorine, this method tackles the nuances inherent to these complex compounds.
  • Compliance Assurance: Aligned with the CWA, Method 1621 ensures the accurate estimation of AOF concentrations, contributing to compliance monitoring at 40 CFR Part 136.

Why it Matters:
Water analysis just got a precision boost! Whether it’s environmental monitoring, compliance assessment, or ensuring water safety, Method 1621 empowers the industry to make informed decisions with confidence.

Our XPREP C-IC is fully compliant with the Method 1621, ensuring precision and reliability in your analytical endeavors.