DFS™ Magnetic Sector GC-HRMS System
Manufacturer – Thermo Fisher Scientific
Description: DFS Magnetic Sector GC‑HRMS is a high‑resolution, magnetic‑sector gas chromatograph–mass spectrometer designed for ultra‑trace analysis of dioxins and persistent organic pollutants (POPs), offering best‑in‑class sensitivity and compliance with global regulatory methods. It supports laboratories demanding routine, high‑confidence quantitation of POPs across varied matrices with robust performance and high throughput.
Technical Specifications:
Resolution: >60,000 (10% valley)
Mass accuracy: <2 ppm (voltage scan) / <5 ppm (magnet scan)
Mass range: 2 – 6000 m/z
Scan rates: 0.1 to 10,000 Da/sec
Linear dynamic range: >5 orders of magnitude
Sensitivity: S/N ≥ 200:1 for 20 fg of 2,3,7,8‑TCDD on‑column
Ionization modes: EI, CI, FD/FI
Source / vacuum: Turbo molecular pumps backed by rotary pumps; internal vacuum system
Footprint / environment: Suitable for smaller labs, space requirement ~140.6 cm × 156.8 cm
Key Features:
• Magnetic‑sector (double‑focusing) analyzer for ultra‑high resolution and accuracy
• Automated universal mass calibration independent of scan speed, polarity, or ionization mode
• Robust, large‑volume ion source optimized for femtogram‑level detection and minimal maintenance
• Flexible dual‑GC configuration with optional throughput-enhancing modules
• Global regulatory method compliance (e.g., US EPA 1613, 1668, 1614; EU; JIS) for dioxins, PCBs, PBDEs, and POPs
Applications: Routine quantitative analysis of dioxins, PCBs, PBDEs, and other persistent organic pollutants in food, environmental, and biological samples under regulatory compliance.
