Equipment specifications for VOCs and HCHO analyses
| Volatile organic compounds (VOCs) | ||
|---|---|---|
| Category | Description | Analysis conditions |
| ATD | Desorb flow/Outlet/Inlet | 40 ml/18 ml/0 ml |
| Head Pressure/Split Ratio | 13.0 psi/10:1 | |
| Desorption | 1st (10 min), 2nd (5 min) | |
| Tube/Trap/Valve/Transfer Temp | 300 °C/−30 to 300 °C/175 °C/220 °C | |
| GC/MS | Manufacturer | Agilent 8890 GC |
| Temperature program | 35 °C > 5 °C/min > 220 °C (10 min) > 10 °C/min >250 °C (6 min) | |
| Detector | MS | |
| Column | HP-1 (0.32 mm × 60 m × 1.80 µm) | |
| Carrier, flow | He (99.999%), 2 ml/min | |
| Detection energy | TIC (Scan), m/z: 35–350 | |
| Electronic energy | 70 ev | |
| Mode | EI/Scan | |
| HCHO | ||
| HPLC (UV, 360 nm) | Column | Eclipse XDB-C18 5um, 4.6 × 150 mm |
| Mobile phase | ACN/Water (50/50 V/V) | |
| Analysis time | 30 min | |
| Injection volume | 10 μl | |
| Column temperature | 25 °C | |
| Flow rate | 1.0 ml/min | |
| Volatile organic compounds (VOCs) | ||
|---|---|---|
| Category | Description | Analysis conditions |
| ATD | Desorb flow/Outlet/Inlet | 40 ml/18 ml/0 ml |
| Head Pressure/Split Ratio | 13.0 psi/10:1 | |
| Desorption | 1st (10 min), 2nd (5 min) | |
| Tube/Trap/Valve/Transfer Temp | 300 °C/−30 to 300 °C/175 °C/220 °C | |
| GC/MS | Manufacturer | Agilent 8890 GC |
| Temperature program | 35 °C > 5 °C/min > 220 °C (10 min) > 10 °C/min | |
| Detector | MS | |
| Column | HP-1 (0.32 mm × 60 m × 1.80 µm) | |
| Carrier, flow | He (99.999%), 2 ml/min | |
| Detection energy | TIC (Scan), m/z: 35–350 | |
| Electronic energy | 70 ev | |
| Mode | EI/Scan | |
| HPLC (UV, 360 nm) | Column | Eclipse XDB-C18 5um, 4.6 × 150 mm |
| Mobile phase | ACN/Water (50/50 V/V) | |
| Analysis time | 30 min | |
| Injection volume | 10 μl | |
| Column temperature | 25 °C | |
| Flow rate | 1.0 ml/min | |
Source(s): Created by author