NMHCs_GC_offline_under_construction_2_WAL
under construction
🔬 gas chromatograph, offline
▶ 📝 Notes
* Sampling interval: Monday and Thursday * other inlet mode: not specified * Inlet line heating: ambient air inlet line is heated to 5 K above the ambient temperature. The laboratory is air-conditioned to 25 °C. * VOC analysis is currently performed with the PerkinElmer system listed in the VOC (off-line) table. In the long term, VOC analysis will be performed using the system listed here. Since this system and method are still under development, no detailed information can be provided at this time.
▶ 💨 Sample from 9999-01-01
| Pump | |
| Other | Autocan |
| Kind of pump | Other |
| Pump manufacturer | [Referenz-ID: 932] |
| Time | 5.0 minutes |
| Air flow | 500.0 mL/min |
| Storage time | 2.0 weeks |
| Canister volume | 1.8 litre |
| Sampling volume | 1.8 litre |
| Canister sampling | Pumping |
| Sampling interval | 2.0 days |
| Number of replicates | 1.0 |
| Canister pressure pre | 2.0 bar |
| Canister pressure post | 2.0 bar |
▶ 🔧 Inlet System from 9999-01-01
| Line heating | 25.0 degC |
| Inlet tube material | Other |
| Filter inlet material | None |
| Distance from nox inlet | 0.5 m |
| Inlet line heating bool | ✓ |
| Distance from ozone inlet | 0.5 m |
| Inlet tube material if other | PFA/stainless steel |
| Measurement height above ground | 7.02 m |
| Measurement height above building | 1.8 m |
▶ ⚗️ GC System from 9999-01-01
| First column | |
| Instrument model | [Referenz-ID: 899] |
| Pre column select box | ✗ |
| Instrument manufacturer | [Referenz-ID: 547] |
| Instrument serial number | CN2336A083 |
| Second column select box | ✗ |
▶ 📡 Detection from 9999-01-01
| Select | FID-MS |
| System | |
| Detection model | [Referenz-ID: 1027] |
| Detection manufacturer | [Referenz-ID: 547] |
| Detection serial number | US2331AA01 |
| Mass spectrometry | |
▶ 📐 Calibration from 9999-01-01
| Zero gas generation | Catalyst |
| Zero gas generation if catalyst | |
| Catalyst type | zero air generator NBS |
| Catalyst temperature | 450.0 degC |
Calibration Certificates (1)
Name:
NPL_NMHCs_2023_WAL
Supplier:
NPL
Cylinder:
D982550
Valid: 2023-02-03 → 2028-02-02
▶ 🧪 Air Treatment from 9999-01-01
| Bool other | ✗ |
| Co2 removal | None |
| Water removal | None |
| Particle removal | None |
▶ 📤 Data Submission
Databases
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▶ ✅ Data QA/QC
| Bool voc | ✗ |
| Bool other | ✗ |
| Bool ratios | ✗ |
| Bool calibrations | ✗ |
▶ 🧬 Compounds from 2026-03-05
| # | Name | Formula | ID |
|---|---|---|---|
| 1 | ethane | – | 252 |
| 2 | ethene | – | 255 |
| 3 | propene | – | 363 |
| 4 | propane | – | 361 |
| 5 | 2-methyl-propane | – | 164 |
| 6 | n-butane | – | 324 |
| 7 | ethyne | – | 269 |
| 8 | (E)-2-butene | – | 99 |
| 9 | 1-butene | – | 126 |
| 10 | 2-methyl-propene | – | 165 |
| 11 | (Z)-2-butene | – | 107 |
| 12 | 2-methylbutane | – | 166 |
| 13 | n-hexane | – | 331 |
| 14 | benzene | – | 225 |
| 15 | n-heptane | – | 329 |
| 16 | toluene | – | 380 |
| 17 | ethylbenzene | – | 265 |
| 18 | m/p-xylenes | – | 299 |
| 19 | pentenes | – | 355 |