This application note introduces EPA Method 525.2 for the analysis of semi-volatile organic compounds in drinking water and provides results for the analysis of 25 regulated compounds using the 240-MS GC/MS system.
This document provides an overview of the Varian 240-MS Ion Trap Mass Spectrometer configured for EPA Method 525.2, which determines trace levels of semi-volatile organic compounds in drinking water via liquid-solid extraction and capillary column GC/MS. The system utilizes the FactorFour VF-5ms column and V:Results GC/MS software to achieve high sensitivity and flexibility in both internal and external ionization modes.
| Column | FactorFour VF-5ms 30 m x 0.25 mm x 0.25 um |
|---|---|
| Target TIC | 6000 ps |
| Emission Current | 20 pA |
| Manifold Temp | 50 C |
| Transfer line Temp | 280 C |
The average MDL of all 25 analytes is 3.5 ppb.
V:Results GC/MS software allows for automatic calculation of the MDLs.