OVOCs_PTR_C4Q-105_SMR
API11_Vocus_PTR
operational
🔬 proton transfer mass spectrometer
🏭 TOFwerk
📦 TOFwerk Vocus PTR-LTOF
S/N C4Q-105
⚡ E/N 133.0 Td
🕑 Spectra averaging time/time resolution 60.0 s
📌
21.11157/t3rcw-qms64
▶ Description
Proton transfer mass spectrometer operated at the observational platform SMEAR II (Hyytiälä) to perform in-situ measurements of oxygenated volatile organic compounds (OVOCs).
▶ 🔧 Inlet System from 2025-01-30
| Operated in atmospheric simulation chamber | ✗ |
| Measurement height above ground | 35.0 m |
| Measurement height above building | 0.0 m |
| Distance from NOx inlet | 0.0 m |
| Distance from condensables inlet | 40.0 m |
| Distance from ozone inlet | 0.0 m |
| Inlet tube material | PFA 4 m 44.6 mmID + PFA 0.8 m 4mmID |
| Residence time | 1.0 s |
| Inlet line heating | ✗ |
| Filter inlet material | PTFE (Teflon) |
| Lower mesh size | 2.0 µm |
| Upper mesh size | 2.0 µm |
▶ 💨 Sample from 2024-01-01
| Sample flow type | Vacuum sampling |
| Sample flow rate | 100.0 mL/min |
| Air flow | 700000.0 mL/min |
| Residence | 1.0 s |
▶ 🧬 Compounds from 9999-01-01
| # | Name |
|---|---|
| 1 | acetaldehyde |
| 2 | acetone |
| 3 | ethanol |
| 4 | isoprene |
| 5 | methyl vinyl ketone |
| 6 | m-xylene |
| 7 | o-xylene |
| 8 | p-xylene |
| 9 | toluene |
| 10 | monoterpenes |
| 11 | acetonitrile |
| 12 | dimethyl sulfide |
| 13 | 1,2,3-trimethylbenzene |
| 14 | 1,2,4-trimethylbenzene |
| 15 | 1,3,5-trimethylbenzene |
| 16 | benzene |
▶ 📐 Calibration from 2023-01-01
| Calibration unit | |
| Ecu system | Integrated in the PTR instrument |
| Dilution gas max flow | 0.7 l/min |
| Diluent gas max flow | 0.005 l/min |
| Integrated | |
| Dilution manufacturer | Burkert |
| Dilution model | Burkert 8710 |
| Dilution serial number | 1085 |
| Diluent manufacturer | Burkert |
| Diluent model | Burkert 8710 |
| Diluent serial number | 1072 |
| Zero gas generation technique | Catalyst |
| Zero gas generation with catalyst | |
| Catalyst type | Vocus PTR Clean Air System |
| Catalyst temperature | 400.0 °C |
| Zero gas / Blank frequency | 5.0 hours |
| Blank substraction | Applied |
| Calibration frequency | 1.0 days |
| Linearity check frequency | 12.0 months |
Certificates (1)
Name: NPL_OVOCs_2021_SMR
Supplier: NPL
Cylinder: D961401
Valid: 2021-10-22 → 2022-01-21
Applied: 2025-05-07 → ?
Dilution: 0.00285 – 0.01
▶ 📋 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 | 1.0 years |
▶ 👤 Operators
| Operator | Level |
|---|---|
| 0000-0002-5591-4876 | scientist |