NMHCs_GC_offline_xx_COPDD
operational
🔬 gas chromatograph, offline
▶ 📝 Notes
* We use sampling on cartridges containing Solid Adsorbants ( Tenax TA 60-80 mesh) . We do not use canister (lines 36 to 40 and 47 unfilled) . The calibration is performed without dilution (lines 84-85 unfilled) * une frequency: 3 months
▶ 💨 Sample from 9999-01-01
| Pump | |
| Kind of pump | Membrane |
| Pump manufacturer | [Referenz-ID: 576] |
| Time | 40.0 minutes |
| Air flow | 100.0 mL/min |
| Sampling volume | 4.0 litre |
| Canister sampling | Pumping |
| Sampling interval | 24.0 hours |
| Number of replicates | 1.0 |
▶ 🔧 Inlet System from 9999-01-01
| Residence time | 5.0 s |
| Lower mesh size | 5.0 µm |
| Upper mesh size | 5.0 µm |
| Inlet tube material | PTFE (Teflon) |
| Filter inlet material | PTFE (Teflon) |
| Distance from nox inlet | 0.0 m |
| Inlet line heating bool | ✗ |
| Distance from ozone inlet | 0.0 m |
| Measurement height above ground | 12.0 m |
| Measurement height above building | 2.0 m |
▶ ⚗️ GC System from 9999-01-02
| First column | |
| Length | 60.0 m |
| Material | DB-5MS |
| Film thickness | 0.25 µm |
| Inner diameter | 250.0 µm |
| Instrument model | [Referenz-ID: 1022] |
| Pre column select box | ✗ |
| Instrument manufacturer | [Referenz-ID: 592] |
| Instrument serial number | 34033046 |
| Second column select box | ✗ |
▶ 📡 Detection from 9999-01-02
| Select | Mass spectrometry |
| Mass spectrometry | |
| Type | Quadrupole |
| Mass spectrometry model | [Referenz-ID: 1022] |
| Mass spectrometry manufacturer | [Referenz-ID: 592] |
▶ 📐 Calibration from 9999-01-01
| Zero gas generation | Syn. Air supply |
| Calibration frequency | 1.0 weeks |
| Zero gas blank frequency | 1.0 days |
| Linearity check frequency | 1.0 months |
Calibration Certificates (1)
Name:
NPL_NMHCs_2022_COPDD
Supplier:
NPL
Cylinder:
D933522
Valid: 2022-01-28 → 2027-01-27
▶ 🧪 Air Treatment from 9999-01-01
| Bool other | ✗ |
| Co2 removal | None |
| Water removal | None |
| Oxidant removal | None |
| Particle removal | None |
▶ 📤 Data Submission
Databases
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▶ ✅ Data QA/QC
| Bool voc | ✓ |
| Bool other | ✗ |
| Bool ratios | ✗ |
| Bool calibrations | ✗ |
▶ 📋 Measurement QA/QC
| Checklist | 1.0 weeks |
| Instrument log book | Hard copy |
▶ 🧬 Compounds from 9999-01-01
| # | Name | Formula | ID |
|---|---|---|---|
| 1 | alpha-pinene | – | 218 |
| 2 | benzene | – | 225 |
| 3 | ethylbenzene | – | 265 |
| 4 | limonene | – | 294 |
| 5 | m-xylene | – | 298 |
| 6 | o-xylene | – | 349 |
| 7 | p-xylene | – | 353 |
| 8 | toluene | – | 380 |
| 9 | beta-pinene | – | 230 |