Method 504.1 for the Analysis of 1,2-Dibromoethane (EDB), 1,2-Dibromo-3-chloropropane (DBCP), and 1,2,3-Trichloropropane (123TCP) by Purge and Trap Using 524.4 Conditions

Drinking Water
Poster Presentation

Prepared by T. Trent, T. Hartlein
Teledyne LABS, 4736 Socialville foster Road, mason, OH, 45040, United States


Contact Information: [email protected]; 513-633-6881

ABSTRACT

The analysis of 1,2-Dibromoethane (EDB), 1,2-Dibromo-3-chloropropane (DBCP), and 1,2,3-Trichloropropane (123TCP) is a common practice in drinking water laboratories across the United States. Traditionally, these compounds are analyzed using US EPA Method 504.1 However, advancements in Gas Chromatography Mass Spectrometry (GCMS) technology, particularly with Selective Ion Monitoring (SIM), now allow for the analysis of these compounds by Purge and Trap using the US EPA 524 method series. This approach eliminates the need for extraction and greatly improves sample analysis time to achieve the required detection limits outlined in the method. The use of a chilled autosampler also allows for greater sample processing capacity.