OVOCs_PTR_P4Q-287_HPB
MoHp_Vocus
installed
🔬 proton transfer mass spectrometer
🏭 TOFwerk
📦 TOFwerk Vocus PTR-S-TOF
S/N P4Q-287
⚡ E/N 999.0 Td
🕑 Spectra averaging time/time resolution 60.0 s
📌 http://hdl.handle.net/21.11157/75ha8-5hc38
▶ Description
Proton transfer mass spectrometer operated at the observational platform Meteorological Observatory Hohenpeissenberg (DWD) to perform in-situ measurements of oxygenated volatile organic compounds (OVOCs).
▶ 🔧 Inlet System from 2024-01-01
| Operated in atmospheric simulation chamber | ✗ |
| Measurement height above ground | 17.0 m |
| Measurement height above building | 2.0 m |
| Distance from NOx inlet | 6.0 m |
| Distance from condensables inlet | 5.0 m |
| Distance from ozone inlet | 6.0 m |
| Distance from gc inlet | 0.0 m |
| Inlet tube material | Highflow glass manifold (ID ~4cm, ~12m/s) into the laboratory from there heated treated stainless steel 1/8" |
| Residence time | 2.0 s |
| Inlet line heating | ✓ |
| Inlet line temperature | 40.0 °C |
| Filter inlet material | None |
| Oxidant removal | None |
▶ 💨 Sample from 2024-01-01
| Sample flow type | Vacuum sampling |
| Sample flow rate | 10000.0 mL/min |
| Air flow | 2000.0 mL/min |
| Residence | 1.0 s |
▶ 🧬 Compounds from 2024-01-01
| # | Name |
|---|---|
| 1 | mass 107.086 organic compounds |
| 2 | mass 121 organic compounds |
| 3 | mass 47 organic compounds |
| 4 | mass 59 organic compounds |
| 5 | mass 69.070 organic compounds |
| 6 | mass 93.070 organic compounds |
| 7 | acetaldehyde |
| 8 | monoterpenes |
| 9 | acetonitrile |
▶ 📐 Calibration from 2024-01-01
| Calibration unit | |
| Ecu system | Integrated in the PTR instrument |
| Dilution gas max flow | 2.0 l/min |
| Diluent gas max flow | 0.05 l/min |
| Integrated | |
| Zero gas generation technique | Catalyst |
| Zero gas generation with catalyst | |
| Catalyst type | Tofwerk PD/PT Catalyst |
| Catalyst temperature | 400.0 °C |
| Zero gas / Blank frequency | 9.0 hours |
| Blank substraction | Applied |
| Calibration frequency | 9.0 hours |
| Linearity check frequency | 10.0 years |
Certificates (1)
Name: NPL_OVOCs_2023_HPB
Supplier: NPL
Cylinder: D115627
Valid: 2023-03-31 → 2024-03-30
Dilution: 500 – 500
▶ 📋 Measurement QA/QC
| Instrument log book | Electronic |
| Checklist | 24.0 hours |
▶ ✅ Data QA/QC
| Time series analysis of calibrations | ✓ |
| Time series analysis of compound ratios | ✓ |
| @VOC@ | ✓ |
| Other QA/QC method | Intercomparison to GC/MS |
▶ 📤 Data Submission
| Database | Submission interval |
|---|---|
| ACTRIS | 1.0 years |
| GAW-WDCRG | 1.0 years |
| EMEP | 1.0 years |
▶ 👤 Operators
| Operator | Level |
|---|---|
| 0000-0002-3680-4735 | scientist |
| 0009-0002-7169-2115 | technician |