4450 Tandem PID/FID

Experience the convenience and flexibility of the Model 4450 Tandem Photoionization Detector/Flame Ionization Detector (PID/FID): a patented combination gas chromatography (GC) detector incorporating the Model 4430 PID and Model 4410 FlD.


Our dynamic duo Model 4450 Tandem PID/FID offers the goodness of two detectors packed into one convenient instrument. Together, the detectors produce simultaneous chromatograms for aromatics and aliphatics, eliminating the need for separate analysis.

Tandem PID/FID Features:

  • Patented design uses only one GC detector port
  • Tandem design acquires two simultaneous chromatograms from a single injection
  • Elimination of transfer lines between detectors improves peak shape and performance
  • System uses GC electronics or OI Analytical’s dual channel electrometer
4450 Specifications
Weight 3 kg (5.5 lb)
Patent The 4450 Tandem PID/FID is protected under U.S. Patent number 4,804,846.
4430 FID Specifications
Dynamic Range >106
Minimum Detection Limit  <40 pg benzene (Based on the USEPA minimum detection limit protocol. Several factors including GC, column, and compound class can affect performance.)
Maximum Operating Temperature 250 °C
Materials of Construction
Inlet Glass-lined stainless steel
Ion Chamber Gold-plated stainless steel
Vent Controlled by GC external events relay
Detector Volume Approximately 50 µL
Lamp Current 0–1.60 mA in 0.15 mA steps
PID Sweep Gas Hydrogen (99.999% purity), 35 ±3 mL/min flow rate
PID Makeup Gas Nitrogen or Helium (99.999% purity), 20 ±5 mL/min flow rate
Controller Dimensions 14.74 cm H x 7.05 cm W x 23.08 cm D (5.75" H x 2.75" W x 9.0" D)
4410 FID Specifications
Dynamic Range >106
Minimum Detection Limit  5 pg carbon/second propane
Maximum Linear Level 100 µg
Maximum Operating Temperature 270 °C
Jet Tip 0.30 mm I.D. (0.012")
Materials of Construction
Jet Glass-lined stainless steel
Collector Stainless steel
FID Air Air (dry, best available purity), 170 ±15 mL/min flow rate