Improved Analysis of EPA Method 8270D

Introduction

An improved method for EPA Method 8270D has been exhibited on a Zebron ZB-SemiVolatiles GC column. The benefits of this method include

• Fast run times while still maintaining resolution of key compounds like benzo[b]fluoranthene and benzo[k]fluoranthene
• Great peak shape of typically poor performing compounds like phenols and amines

EPA Method 8270D is a complicated method with one of the longest lists of analytes. A laboratory running a minimal list will still have over 80 compounds and laboratories adding Appendix mixes can have over 200 compounds in their calibration curves. This large number of compounds can lead to chromatographic challenges that must be addressed when choosing columns and developing methods.