OVOCs_PTR_(68) 08-04_SIRTA
operational
🔬 proton transfer mass spectrometer
🏭 Ionicon Analytik
📦 Ionicon Analytik High-Sensitivity PTR-MS
S/N (68) 08-04
⚡ E/N 128.0 Td
🕑 Spectra averaging time/time resolution 300.0 s
📌 http://hdl.handle.net/21.11157/6jmgp-fbb89
▶ Description
Proton transfer mass spectrometer operated at the observational platform Site Instrumental de Recherche par Télédétection Atmosphérique (SIRTA) to perform in-situ measurements of oxygenated volatile organic compounds (OVOCs).
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▶ 🔧 Inlet System from 2023-06-26
| Operated in atmospheric simulation chamber | ✗ |
| Measurement height above ground | 9.6 m |
| Measurement height above building | 0.85 m |
| Distance from NOx inlet | 0.65 m |
| Distance from ozone inlet | 0.65 m |
| Inlet tube material | PFA |
| Residence time | 3.5 s |
| Inlet line heating | ✓ |
| Inlet line temperature | 50.0 °C |
| Filter inlet material | PTFE (Teflon) |
| Lower mesh size | 45.0 µm |
| Upper mesh size | 45.0 µm |
▶ 💨 Sample from 2020-01-01
| Sample flow type | Vacuum sampling |
| Sample flow rate | 70.0 mL/min |
| Air flow | 7700.0 mL/min |
| Residence | 3.5 s |
▶ 🧬 Compounds from 2020-01-01
| # | Name |
|---|---|
| 1 | methanol |
| 2 | acetonitrile |
| 3 | acetaldehyde |
| 4 | acetone |
| 5 | dimethyl sulfide |
| 6 | isoprene |
| 7 | methyl vinyl ketone |
| 8 | n-butanal |
| 9 | benzene |
| 10 | toluene |
| 11 | m-xylene |
| 12 | 1,2,3-trimethylbenzene |
| 13 | monoterpenes |
▶ 📐 Calibration from 2022-05-15
| Calibration unit | |
| Ecu system | Custom-made dilution system |
| Dilution gas max flow | 0.5 l/min |
| Diluent gas max flow | 0.02 l/min |
| Custom | |
| Diluent model | Bronkhorst FC-201CV |
| Dilution model | Bronkhorst FC-201CV |
| Diluent manufacturer | Bronkhorst |
| Diluent serial number | M25219278A |
| Dilution manufacturer | Bronkhorst |
| Dilution serial number | M1521433D |
| Zero gas generation technique | Catalyst |
| Zero gas generation with catalyst | |
| Catalyst type | Parker Balston 75-83 (350°C ) |
| Catalyst temperature | 350.0 °C |
| Zero gas / Blank frequency | 6.0 hours |
| Blank substraction | Applied |
| Calibration frequency | 6.0 hours |
| Linearity check frequency | 1.0 months |
Certificates (1)
Name: NPL_OVOCs_2021_SIRTA
Supplier: NPL
Cylinder: D914017
Valid: 2021-10-20 → 2022-10-19
Applied: 2022-05-15 → ?
Dilution: 0.002 – 0.02
▶ 📋 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 |
|---|---|
| 0000-0001-6694-3114 | scientist |
| 0009-0004-8663-9901 | technician |