Nutech 8910ODS Preconcentrator for ODS and Fluorinated Greenhouse Gas Analysis
The Nutech 8910ODS Preconcentrator is a high-performance sample preparation system designed for ultra-trace analysis of ozone depleting substances (ODS) and fluorinated greenhouse gases in ambient air. The system uses inert-treated sample pathways, ultra-clean valves, two-stage cryogenic trapping, and precise temperature control to help minimize contamination, carryover, and analyte loss.
Features of Nutech 8910ODS Preconcentrator
Ultra-trace sensitivity for demanding air analysis
Achieve trace-level detection for ODS and fluorinated greenhouse gas applications with a detection limit down to 0.01 ppbv and a concentration ratio greater than 1000:1. The system is suitable for low-level ambient air monitoring as well as method-driven environmental analysis.
Two-stage cryogenic trapping for enhanced focusing
The 8910ODS combines a HayeSep D adsorbent trap with a cryofocusing trap, both operating across a temperature range of -190°C to 250°C. This two-stage design helps improve analyte enrichment, peak focusing, and chromatographic performance for volatile target compounds.
Inert sample pathway to reduce carryover and contamination
All critical sample pathways are inert-treated, helping reduce surface activity, adsorption, residual contamination, and VOC release from internal components. This supports better sample integrity, higher recovery, and improved reproducibility for trace-level analysis.
High-efficiency water removal without ODS loss
The integrated water removal module uses Nafion-based drying technology, delivering >99% water removal efficiency while avoiding adsorption loss of ODS components. Heated, inert-treated lines further help preserve sample representativeness and reduce interference from water peaks.
Flexible sample volume range
A broad sample introduction range of 4–2000 mL allows laboratories to adapt the method to different sensitivity requirements and sample concentrations. With optional quantitative loop configuration, the minimum injection volume can be extended to 0.1 mL, supporting high-concentration or special-method applications.
Automated operation and productivity upgrade
When paired with the Nutech 3610 autosampler, the system supports up to 16 canister positions for automated sequence operation. Users can set sample sequence, volume, timing, and method parameters to reduce manual intervention and improve laboratory throughput.
Designed for GC and GC/MS integration
The 8910 ODS is designed to integrate with GC, GC/ECD, and GC/MS systems. Remote-control communication enables coordinated GC readiness, start, and wait commands, supporting streamlined operation in routine analytical workflows.
Built-in software control and QA/QC support
The Windows-based control software allows users to edit methods, create sequences, run single or batch tasks, perform system purge, bake traps, flush sample lines, conduct leak checks, and generate QA/QC reports. This supports consistent operation and easier method management.
Nutech ODS & F-GHGs Analysis Solution
Chromatogram of 37 ODS & F-GHGs
Specifications of Nutech 8910ODS Preconcentrator
| Parameter | Specification |
|---|---|
| Detection limit | 0.01 ppbv |
| Preconcentration ratio | >1000:1 |
| Precision | ≤3% RSD |
| Sample volume range | 4–2000 mL |
| Optional minimum injection volume | 0.1 mL |
| Temperature control accuracy | ±2°C |
| Maximum heating rate | 10000°C/min |
| Trap 1 | HayeSep D adsorbent trap, -190°C to 250°C |
| Trap 2 | Cryofocusing trap, -190°C to 250°C |
| Operating environment | 20–35°C, RH <85% |
| Maximum power | 1 kW |
Typical Applications
Environmental air monitoring
Trace-level analysis of ODS and fluorinated greenhouse gases in ambient air.
Industrial park monitoring
Monitoring of ozone-depleting substances and hydrofluorocarbons in industrial park environments.
Third-party testing laboratories
Routine canister-based air sample preconcentration and GC/GC-MS analysis.
Research institutions
Low-level atmospheric research, method development, and laboratory studies involving volatile trace compounds.
Regulatory and compliance-driven analysis
Applications requiring standardized sample preconcentration workflows for ODS and fluorinated greenhouse gas monitoring.
Background: ODS and Fluorinated Greenhouse Gases
Ozone-depleting substances (ODS) are a group of halogenated chemicals that can damage the Earth’s stratospheric ozone layer. Historically, they have been widely used as refrigerants, cleaning agents, foam-blowing agents, and fire-extinguishing agents. Major ODS categories include chlorofluorocarbons (CFCs), halons, carbon tetrachloride (CTC), methyl chloroform (1,1,1-trichloroethane), hydrochlorofluorocarbons (HCFCs), hydrobromofluorocarbons (HBFCs), bromochloromethane (BCM), and methyl bromide.
Once released into the atmosphere, these compounds can persist for long periods and eventually reach the stratosphere. Under ultraviolet radiation, they release chlorine or bromine radicals, which catalytically destroy ozone molecules. The resulting depletion of the ozone layer allows increased levels of ultraviolet radiation to reach the Earth’s surface, posing risks to human health, ecosystems, agriculture, and the broader biosphere.
Hydrofluorocarbons (HFCs), while not ozone-depleting, were introduced as substitutes for many phased-out ODS. However, many HFCs have high global warming potentials and are now subject to increasing regulatory control due to their contribution to climate change.
