Pre-concentration method | Test method | Target gaseous pollutants |
---|---|---|
– | Colorimetric tube | Ammonia |
Sorbent | Gas chromatography with flame ionization detection (GC-FID) | Volatile fatty acids (VFAs) |
Cold trap | Gas chromatography with flame ionization detection (GC-FID) | Aromatics, terpenes, alcohols |
Cold trap | Gas chromatography with pulsed flame photometric detection (GC-PFPD) | Reduced sulfur compounds (RSCs) |
Derivatization | High-performance liquid chromatography (HPLC) | Carbonyl compounds |