Air Monitoring: New Advances in Sampling and Detection
Table 3
Analytical conditions.
TD conditions
GC conditions
MS conditions
Configuration: CIA-Advantage automated canister analysis system (Markes International Ltd) Sampling: 0.5 and 2 mL samples collected using 0.5 mL loop; 25, 50, 100, and 200 mL sampled with MFC at 25 mL/min, with sampling time varied to produce required volume Flow path temperature: 150°C Focusing trap: air toxics analyser type trap Trapping temperature: 25°C Cold trap desorption: 320°C for 3 min (5 : 1 split) Trap heating rate: 40°C/s
Column: 60 m × 0.32 mm × 1.8 μm, 624 type phase Oven: 40°C (5 min), 5°C/min to 230°C (0 min) Constant pressure: 10 psi
Source temperature: 230°C Quadrupole temperature: 150°C Transfer line temperature: 280°C Scan range: m/z 35–300