NMHCs_GC_offline_under_construction_2_WAL
under construction
🔬 gas chromatograph, offline
🏭 Agilent
📦 Agilent 8890
S/N CN2336A083
▶ Description
Gas chromatograph operated at the observatory platform Waldhof to perform offline in-situ measurements of non-methane hydrocarbons (NMHCs)
▶ 🔧 Inlet System from 9999-01-01
| Operated in atmospheric simulation chamber | ✗ |
| Measurement height above ground | 7.02 m |
| Measurement height above building | 1.8 m |
| Distance from NOx inlet | 0.5 m |
| Distance from ozone inlet | 0.5 m |
| Inlet tube material | PFA/stainless steel |
| Inlet line heating | ✓ |
| Inlet line temperature | 25.0 °C |
| Filter inlet material | None |
▶ 💨 Sample from 9999-01-01
| Canister sampling | Pumping |
| Pump | |
| Kind of pump | Autocan |
| Pump manufacturer | Breitfuss |
| Air flow | 500.0 mL/min |
| Time | 5.0 minutes |
| Air sampling volume | 1.8 litre |
| Sampling interval | 2.0 days |
| Canister volume | 1.8 litre |
| Canister pressure pre-sampling | 2.0 bar |
| Canister pressure post-sampling | 2.0 bar |
| Number of replicates | 1.0 |
| Storage time | 2.0 weeks |
▶ 🧬 Compounds from 2026-03-05
| # | Name |
|---|---|
| 1 | ethane |
| 2 | ethene |
| 3 | propene |
| 4 | propane |
| 5 | 2-methyl-propane |
| 6 | n-butane |
| 7 | ethyne |
| 8 | (E)-2-butene |
| 9 | 1-butene |
| 10 | 2-methyl-propene |
| 11 | (Z)-2-butene |
| 12 | 2-methylbutane |
| 13 | n-hexane |
| 14 | benzene |
| 15 | n-heptane |
| 16 | toluene |
| 17 | ethylbenzene |
| 18 | m/p-xylenes |
| 19 | pentenes |
▶ 🧪 Air Treatment during canister sampling from 9999-01-01
| Water removal | None |
| CO₂ removal | None |
| Particle removal | None |
▶ 💉 Introduction device from 9999-01-01
| Technique | Concentrating on adsorbents |
| Concentrating on adsorbents | |
| Inlet mode | not specified |
| Air sampling system manufacturer | Markes |
| Air sampling system model | Markes UNITY-xr |
| Sampling system serial number | GB00U40058 |
▶ ⚗️ GC System from 9999-01-01
| Instrument manufacturer | Agilent |
| Instrument model | Agilent 8890 |
| Instrument serial number | CN2336A083 |
| First column | |
▶ 📡 Detection from 9999-01-01
| Detection method | FID-MS |
| Detection system | |
| Manufacturer | Agilent |
| Model | Agilent 5977C GC-MSD |
| Serial number | US2331AA01 |
| Mass spectrometry system | |
▶ 📐 Calibration from 9999-01-01
| Zero gas generation technique | Catalyst |
| Zero gas generation with catalyst | |
| Catalyst type | zero air generator NBS |
| Catalyst temperature | 450.0 °C |
Certificates (1)
Name: NPL_NMHCs_2023_WAL
Supplier: NPL
Cylinder: D982550
Valid: 2023-02-03 → 2028-02-02
▶ ✅ Data QA/QC
| Time series analysis of calibrations | ✗ |
| Time series analysis of compound ratios | ✗ |
| @VOC@ | ✗ |
▶ 📤 Data Submission
| Database | Submission interval |
|---|---|
| ACTRIS | – |