Air quality analyzers: VOCs, NMHC and speciation
High-precision GC-FID systems for air quality monitoring and industrial emissions.
Standard-Compliant GC-FID Solutions for Continuous VOC Monitoring
To meet the strictest environmental and regulatory requirements, Chemlys integrates the P5100 series of online analyzers. Designed for industry and ambient air monitoring, these robust systems guarantee ultra-precise quantification of total VOCs, NMHCs (non-methane hydrocarbons), as well as the complete speciation of C2 to C12 hydrocarbons.
A robust GC for your online VOC analysis
Integrated in a 19-inch rack format, the P5100 analyzers meet the requirements of industrial environments and air monitoring networks.
Faced with tightening environmental standards (European Industrial Emissions Directive - IED, compliance with Occupational Exposure Limits - OELs) and increasing demands for data traceability, the reliability of continuous measurement is a major challenge.
The P5100 analyzers meet the strict constraints of industrial environments and air quality monitoring networks. Designed to align with a rigorous metrological quality approach, they easily integrate into your analyzer cabinets. They ensure maximum uptime and feature highly automated calibration, thereby guaranteeing the accuracy, repeatability of measurements, and continuous validation of your data in compliance with regulatory requirements.
Planning a VOC or NMHC Analyzer Project? The Chemlys Commitment
At Chemlys, we know that an analyzer alone is not enough: expert service and proper gas sampling make all the difference. By choosing our turnkey solutions, you benefit from comprehensive, end-to-end support tailored to your analytical needs:
- Consulting & Needs Assessment: In-depth analysis of your application, definition of the optimal GC configuration, and selection of the most suitable accessories.
- Supply of Gas Sampling Accessories: Provision of heated transfer lines, filtration systems, sampling pumps, and valves tailored to your specific industrial process.
- Commissioning & Validation: On-site installation, analytical method configuration, and instrument validation according to your specific industry standards and references.
- Calibration & Consumables: Supply of permeation tubes, certified calibration gases, and chromatography consumables to guarantee the accuracy and metrological traceability of your measurements.
- Maintenance & Repair Services: Preventive and corrective maintenance contracts (annual or multi-year) delivered by our dedicated technical experts across France and Europe, ensuring maximum uptime for your equipment.
The air quality analyzer range is available in three main configurations:
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P5100 NMHC: Continuous measurement of Methane (CH4), Total VOCs (TVOC), and Non-Methane Hydrocarbons (NMHC) using the subtractive method (Dual FID).
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P5100 C2-C6: Speciation of light hydrocarbons (from ethane to benzene, including 1,3-butadiene) using a thermal preconcentration module.
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P5100 C2-C12+: Solution « tout-en-un » pour le spectre complet des COV, incluant la surveillance des BTEX (Benzène, Toluène, Éthylbenzène, Xylènes) à l’état de traces (ppb/ppt).
Operating Principle:
The operation of the P5100 series is based on Gas Chromatography coupled with a Flame Ionization Detector (GC-FID).
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Sampling and preconcentration: Uses absorbent traps with rapid thermal desorption for the C2-C6 and C2-C12 models, achieving detection limits down to the ppt level.
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Industrial Format: Designed as a standard 19” industrial rack.
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Regulation: Electronic Pressure Control (EPC) and Mass Flow Controllers (MFC) ensure impeccable retention time repeatability.
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Interface and communication: Front-panel touchscreen, built-in intuitive supervision software, and industrial communication protocols (Modbus TCP/RTU, 4-20mA analog outputs, alarm relays).
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Autonomy: Fully automated management of analytical sequences, calibration, and column self-cleaning.
Normative Compliance and Performance:
Our solutions are designed to meet the strictest international and European standards for environmental monitoring.
Industrial Emissions Monitoring (Stationary Source Emissions)
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Standard: NF EN 12619 (Measurement of VOCs / Total Organic Carbon).
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Application: Incinerators, refineries, chemical industry.
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Solution: P5100 NMHC (Detection limits < 50 ppb, fast cycle time, no oxygen interference).
Ambient Air Monitoring and Industrial Hygiene
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Standard: NF EN 14662-3 (Measuring concentration in Benzene / BTEX) / ISO 16000-29 (Indoor air quality).
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Application: Air quality networks, urban areas, Seveso perimeters, indoor air.
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Solution: P5100 C2-C6 and C2-C12 (High resolution separation, detection limits below 0.1 ppb for benzene and 1,3-butadiene).
Summary of Performance and Positioning of the P5100 Range.
| Model | Target Compounds / Reference Application & Standard | Technical Performance & Sensitivity |
| P5100 NMHC |
Methane (CH4), Non-Methane Hydrocarbons (NMHC), Total VOCs (TVOC) Stationary Source Emissions (Standard NF EN 12619) |
LDL: < 50 ppb Technology: Dual FID Cycle time: < 3 minutes |
| P5100 C2-C6 |
Speciation of light hydrocarbons (from ethane to benzene, including 1,3-Butadiene) Ambient Air Monitoring & AASQA Networks (Standard NF EN 14662-3) |
LDL: < 0.1 ppb (down to ppt) Technology: Thermal preconcentration trap + GC-FID |
| P5100 C2-C12+ |
Full VOC spectrum, BTEX (Benzene, Toluene, Ethylbenzene, Xylenes), Heavy hydrocarbons Industrial Hygiene, Indoor Air & Seveso Zones (ISO 16000-29 / NF EN 14662-3) |
LDL: < 0.1 ppb Technology: High-efficiency thermal desorption + GC-FID |
Secure and Complete Your Analytical Solution

DMS Analyzers: Ultra-Fast Detection for Industrial Hygiene
Ideal for industrial hygiene and safety, this technology enables continuous, real-time detection (within seconds) of specific toxic compounds at trace levels.

Standards & Calibration: The Guarantee of Flawless Metrology
Chemlys provides comprehensive validation solutions: permeation tubes, certified calibration gases, gas generators, and calibration accessories tailored to your target compounds.

Maximize Your Equipment Uptime
Chemlys supports you over the long term with customized preventive and corrective maintenance contracts: dedicated technical support, scheduled on-site interventions, and a secure supply of spare parts.
Our Custom Approach to Successful Online Analysis
Engineering & Needs Assessment
Beyond the equipment: your reality in the field.
Every industrial process is unique. That is why we start with your project, not a catalog. Our experts meticulously analyze your context, your regulatory challenges, and the physical constraints of your environment (complex gas matrices, extreme conditions).
Our goal: to define a sampling and analytical architecture perfectly scaled for your application.
A True Commitment to Results
The guarantee of a solution that works for you.
Les spécifications théoriques d’un constructeur ne suffisent pas à garantir le succès d’une application industrielle. Chez Chemlys, nous ne vous livrons pas une simple « boîte » : nous nous engageons sur les résultats analytiques finaux. Nous garantissons la séparation chromatographique, les limites de détection et la répétabilité spécifiquement pour your your compounds of interest and your sample matrix.
Service Excellence & Support
Technical expertise dedicated to your satisfaction.
The true strength of Chemlys lies in the high level of expertise of our technical team. From on-site installation and analytical method development to training and after-sales support, our commitment is to be by your side for the long term. We support you every day to maximize your equipment's uptime and ensure your complete satisfaction.