This collection of Application Briefs demonstrates the wide range of analyses that can be successfully addressed with the Agilent TD-GC/MS systems, including monitoring air toxics, monitoring hazardous air pollutants, soil gas and vapor-intrusion assessments, sorbent tube stack emissions testing, occupational hygiene/workplace air monitoring, fugitive emissions, odor, and fence-line monitoring, and indoor air quality.
Thermal desorption (TD) combined with Gas Chromatography/Mass Spectrometry (GC/MS) is a powerful technique for measuring organic vapors in air. Agilent Technologies partners with Markes International to provide state-of-the-art air analyzers that comply with various international standard methods, including U.S. EPA Methods TO-15 and TO-17.
The document outlines diverse applications such as monitoring air toxics using canisters and sorbent tubes, soil gas assessments, stack emissions testing, occupational hygiene, and indoor air quality analysis. The systems feature cryogen-free operation, versatile water management, and high-performance components like the Agilent 7890A GC system and 5975C Series GC/MSD.
| Compatible Methods | ISO/EN 16017, ASTM D6196, U.S. EPA Methods TO-17 and TO-15, EN 14662 (parts 1 and 4), NIOSH 2549 |
|---|---|
| GC System Model | Agilent 7890A |
| MS System Model | Agilent 5975C Series GC/MSD |
| Sample Volume Range | 100 mL to 1L |
| Focusing Trap Temperature Program | 25 °C, 40 °C/s to 320 °C (3 min) |
| TD Flow Path Temperature | 140 °C |
| Carrier Gas Pressure | Helium at constant pressure of 10 psi |
| MS Full Scan Range | 35-300 m/z |
The systems support U.S. EPA Method TO-17 for sorbent tubes and U.S. EPA Method TO-15 for canisters.
No, the systems utilize electrically-cooled focusing technology that requires no liquid cryogen.
The recommended accessory includes an Agilent J&W DB-624 column with specifications of 60 m x 0.32 mm id x 1.8 pm.