In the context of increasingly stringent air quality regulations and growing awareness of indoor pollutants, formaldehyde (HCHO) monitoring has become a top priority. At CHROMATOTEC, we don’t just measure formaldehyde — we generate, quantify and validate it with patented precision.
Reliable Formaldehyde Generation with Paraformaldehyde Tubes
CHROMATOTEC has engineered a compact permeation-based calibration system using paraformaldehyde. Advantages over cylinder-based standards:
- Wide and controlled concentration range (ppb to ppm level)
- Predictable output thanks to a temperature-emission relationship modelled by the Antoine equation
- Stable output over 1 year with RSD ~5%
- Fast stabilization (few minutes) for on-site usability
- Certified by DNPH-HPLC (ISO 16000-3) for higher reliability than weight-based certification
This calibration module is now integrable into our formaldehyde analyzers, enhancing autonomous, in-situ calibration capabilities.
Measurement with Chromatotec products
The airmoF microfluidic device for formaldehyde is dedicated to on-line monitoring based on the Hantzsch reaction. Designed for ultra-trace detection and field robustness, it delivers:
- High sensitivity with detection < 0.1 ppb
- Auto-zero at every cycle to eliminate drift
- No influence of humidity (tested up to 50% RH)
- Excellent linearity (R² > 0.99)
- Internal HCHO module calibration
When mobility and responsiveness matter, the microF offers reliable continuous formaldehyde monitoring in a compact portable format. Dedicated to field campaigns with 4-hour autonomy on battery.
- High sensitivity < 0.3 ppb
- Real-time or cycle-time analysis
- Suitable for indoor air monitoring, IAS audits, emergency response
- Lightweight and low maintenance
- No gas required
Field-proven performance – Puy de Dôme Research campaign
The airmoF system was tested during a 3-month atmospheric campaign at the Puy de Dôme summit (1465 m). Daily checks using a certified formaldehyde permeation tube, combined with reference DNPH-HPLC sampling, confirmed the reliability of our instruments in real-world conditions.
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