GC chromatograph DFS™

laboratoryfor the analysis of trace impuritiesfor the food industry

Product overview
The Thermo Scientific™ DFS Magnetic Sector GC‑HRMS is a high‑resolution gas chromatography–high resolution mass spectrometry system designed for routine quantification of dioxins and other POPs. It combines magnetic sector mass analysis with workflows and software tailored for regulatory compliance and high‑throughput laboratories.

DFS Magnetic Sector GC‑HRMS System

• Magnetic sector high‑resolution analyzer for dioxin and POPs routine analysis across diverse sample types and matrices.
• Supports global official methods for dioxins, PCBs and PBDEs (examples: EPA 1613, 1668, 1614).
• Double‑focusing magnetic sector provides mass‑independent resolution across the mass range for enhanced selectivity in complex matrices.
• Configurable for high throughput and robustness with options such as large‑volume ion source and Dual GC configuration.

Thermo Scientific DFS Software Package

• Automated features to support fully compliant routine quantifications of POPs while maintaining data confidence and laboratory flexibility.
• Thermo Scientific™ DFS SmartTune™ Operating Software simplifies instrument optimization, troubleshooting and routine method setup.
• Thermo Scientific™ DFS TargetQuan™ Data Evaluation Software enables isotope‑dilution quantification and regulatory reporting workflows.

Catalog and sensitivity
Catalog Number | Sensitivity
IQLAAEGAALFABKMAEG | SN ≥200:1 (PtP, 4σ) for 20 fg 2,3,7,8‑Tetrachlorodibenzo‑p‑Dioxin on Column

Applications and sample types

• Dioxins and furans in environmental matrices (soil, sediment, air, fly ash) and food/feed samples.
• Low‑level dioxins and POPs in biological samples (for example, human blood).
• PCBs, PBDEs and other persistent organic pollutants requiring femtogram‑level detection.
• Challenging matrices with heavy interferences (e.g., high‑sulfur fly ash, squalene‑rich samples) where high resolution and matrix tolerance are required.

Compliance and method support
The system is designed for compliance with major official methods for dioxins/POPs (including EPA 1613, 1668, 1614; EU EN 1948; JIS K0311/K0312). Features include lock‑mass trace monitoring for instrument stability and log files documenting mass resolution per analysis. Software packages (DFS SmartTune, DFS TargetQuan, Xcalibur) support isotope‑dilution workflows, LOQ/LOD calculation and regulatory‑compliant reporting.

Technical specifications

• Data system software and options: Thermo Scientific Xcalibur and TargetQuan 3
• Description: DFS High‑Resolution GC/MS, configurable
• Dynamic range: more than 5 orders of linear dynamic range
• Mass accuracy: less than 2 ppm (voltage scanning), less than 5 ppm (magnet scanning)
• Ionization modes: EI, CI, FD/FI available
• Scan rates: 0.1 to 10,000 Da/sec
• Scanning capabilities: voltage scanning, magnet scanning, Multiple Ion Detection (MID/SIM), Multiple Reaction Monitoring (MRM)
• Sensitivity: SN ≥200:1 (PtP, 4σ) for 20 fg 2,3,7,8‑TCDD on column
• Source type: optimized ion efficiency, easy install, inert source
• Vacuum system: turbo molecular pumps backed by rotary pumps; housed inside instrument for reduced noise
• Voltage: 230 V
• Mass range: 2 to 6000 m/z
• Resolution: greater than 60,000 R
• Type: GC‑HRMS system
• Unit size: each