OVOCs_PTR_P4Q_374_VOCUS_S_PTR_Taunus
operational
🔬 proton transfer mass spectrometer
🏭 TOFwerk
📦 TOFwerk Vocus PTR-S-TOF
S/N 910.34.1232
⚡ E/N 120.0 Td
🕑 Spectra averaging time/time resolution 120.0 s
📌 http://hdl.handle.net/21.11157/91hyy-r4j62
▶ Description
Proton transfer mass spectrometer operated at the observational platform Taunus Observatory to perform in-situ measurements of oxygenated volatile organic compounds (OVOCs).
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▶ 🔧 Inlet System from 2026-03-04
| Operated in atmospheric simulation chamber | ✗ |
| Measurement height above ground | 9.7 m |
| Measurement height above building | 2.2 m |
| Distance from NOx inlet | 0.0 m |
| Distance from condensables inlet | 5.0 m |
| Distance from ozone inlet | 0.0 m |
| Distance from gc inlet | 5.0 m |
| Inlet tube material | PFA |
| Residence time | 0.4 s |
| Inlet line heating | ✓ |
| Inlet line temperature | 40.0 °C |
| Filter inlet material | None |
| Oxidant removal | None |
▶ 💨 Sample from 2026-01-28
| Sample flow type | Pumping |
| Sample flow rate | 2000.0 mL/min |
| Air flow | 135.0 mL/min |
| Residence | 1.0 s |
▶ 🧬 Compounds from 2026-03-04
| # | Name |
|---|---|
| 1 | C8-aromatics |
| 2 | toluene |
| 3 | C9-aromatics |
| 4 | benzene |
| 5 | isoprene |
| 6 | monoterpenes |
| 7 | methyl ethyl ketone |
| 8 | acetaldehyde |
| 9 | acetonitrile |
| 10 | acetone |
| 11 | methanol |
▶ 📐 Calibration from 2026-07-09
| Calibration unit | |
| Ecu system | Integrated in the PTR instrument |
| Dilution gas max flow | 2.0 l/min |
| Diluent gas max flow | 0.03 l/min |
| Integrated | |
| Dilution manufacturer | Bronkhorst |
| Dilution model | Bronkhorst FC-201CV |
| Dilution serial number | MFC-VOCUS-1 |
| Diluent manufacturer | Bronkhorst |
| Diluent model | Bronkhorst FC-201CV |
| Diluent serial number | MFC-VOCUS-2 |
| Zero gas generation technique | Catalyst |
| Zero gas generation with catalyst | |
| Catalyst type | VOCUS ZAG |
| Catalyst temperature | 400.0 °C |
| Zero gas / Blank frequency | 6.0 hours |
| Blank substraction | Applied |
| Calibration frequency | 4.0 hours |
| Linearity check frequency | 1.0 months |
Certificates (1)
Name: NPL_OVOCs_Taunus
Supplier: NPL
Cylinder: D369862
Valid: 2026-03-27 → 2027-03-27
Applied: 2026-07-09 → 2027-07-08
Dilution: 70 – 1000
▶ 📋 Measurement QA/QC
| Instrument log book | Electronic |
| Checklist | 1.0 weeks |
▶ ✅ Data QA/QC
| Time series analysis of calibrations | ✓ |
| Time series analysis of compound ratios | ✓ |
| @VOC@ | ✓ |
▶ 📤 Data Submission
| Database | Submission interval |
|---|---|
| ACTRIS | – |
▶ 👤 Operators
| Operator | Level |
|---|---|
| 0000-0002-4900-7460 | scientist |
| 0000-0003-3911-6492 | scientist |