The continuous combustion of fossil fuels, alongside widespread agricultural activities and land clearing, significantly contributes to the rising levels of greenhouse gases in the atmosphere. Because these emissions—including carbon dioxide, methane, nitrous oxide, and sulphur hexafluoride—drive climate change, highly accurate monitoring is essential for environmental research, regulatory compliance, and climate studies.
To meet these critical demands, the GAS Greenhouse Gas Analyser provides an advanced, dual-channel analytical configuration. The first channel is specifically dedicated to measuring CH₄ and CO₂. It utilizes a 10-port valve for injection and backflushing, followed by a methaniser that converts CO₂ into methane for highly sensitive sub-ppm detection via a Flame Ionisation Detector (FID). An optional Thermal Conductivity Detector (TCD) can also be added in series to evaluate high percentage levels of CO₂. The second channel separates N₂O and SF₆ from air and CO₂, actively backflushing water to a vent before measuring the targets using an Electron Capture Detector (ECD). When using an Argon/Methane (95:5) make-up gas, the ECD achieves remarkable sensitivity, pushing N₂O detection limits below 20 ppb and SF₆ into the sub-ppt range. Ultimately, whether utilizing manual loop filling, continuous sample pumps, or a Triplus 500 Headspace autosampler for complex soil and water matrices, the system guarantees rapid 5-minute analysis times and exceptional repeatability.
Benefits
Low Detection Limits: Achieves exceptional analytical sensitivity, enabling the detection of CH₄ below 50 ppb, CO₂ under 100 ppb, N₂O below 20 ppb (using optimized Ar/CH₄ make-up gas), and SF₆ in the ultra-trace sub-ppt range.
Multiple Detector Technologies: Maximizes analytical flexibility by combining a Methaniser-FID for carbon dioxide and methane, an ECD for nitrous oxide and sulfur hexafluoride, and an optional TCD for evaluating highly concentrated CO₂.
Flexible Sampling Options: Seamlessly adapts to diverse laboratory workflows by fully supporting continuous online monitoring, manual gas loop injection, and automated headspace sampling all within a single integrated instrument.
Fast Analysis Time: Greatly enhances laboratory productivity and sample throughput by completing a highly detailed, comprehensive greenhouse gas analysis in approximately 5 minutes.
| Category | Specification |
|---|---|
| Analyser Platform | Thermo Trace GC1600 with external valve oven |
| Detector Options | Methaniser-FID, ECD (Electron Capture Detector), and optional TCD |
| Injection System | GSV (Gas Sampling Valve) or Triplus 500 Headspace sampler |
| Target Components | CH₄, CO₂, N₂O, and SF₆ (chlorofluorohydrocarbons available on request) |
| Sample Matrices | Air, water, soil, and organic materials |
| Limit of Detection (CH₄ & CO₂) | < 50 ppb for CH₄ | < 100 ppb for CO₂ (via Methaniser-FID) |
| Limit of Detection (N₂O & SF₆) | < 20 ppb for N₂O (with Ar/CH₄ make-up) | Sub-ppt range for SF₆ (via ECD) |
| Analysis Runtime | 5 minutes |
| Repeatability | ≤ 1% RSD (n=10) |
| Optional Features | Bypass valve for high O₂ content and TCD integration for high CO₂ levels |
Greenhouse Gas Monitoring in Air: Precisely measure critical concentrations of CH₄, CO₂, N₂O, and SF₆ within ambient air, indoor environments, and comprehensive atmospheric monitoring programs.
Soil and Agricultural Emissions: Effectively analyze greenhouse gas emissions outgassing from complex soil samples and organic materials by utilizing advanced automated headspace sampling techniques.
Environmental Research and Climate Studies: Provide highly sensitive, exceptionally reproducible gas data to support vital scientific research projects and global climate change investigations.
Manual and Online Process Monitoring: Execute highly versatile operational workflows, ranging from routine manual loop injections to continuous, real-time online analysis powered by an integrated sample pump.
The analyser’s core methodology is fully designed around the principles of the Costumer Demands.
