Pulsed Flame Photometric Detector (PFPD)

Pulsed Flame Photometric Detector

Superior selectivity and sensitivity for easy analysis of sulfur, phosphorus, and 26 other elements.


  • Superior sensitivity and increased selectivity for S and P compared to conventional FPDs
  • Linear, equimolar response for quick, easy calibrations
  • Simultaneous mutually selective chromatograms (e.g., S+C, or S+P) • Self-cleaning design eliminates soot formation, or “coking,” seen in other sulfur-selective detectors
  • Modular design with separate electronics and flow modules
  • Better long-term stability and less maintenance than other S-selective detectors, such as SCD/XRF

Be Selective With Your Data

Our 5383 Pulsed Flame Photometric Detector (PFPD) is linear, with an equimolar response to sulfur permitting selective measurement of individual sulfur species from low ppb to ppm levels and total sulfur as the sum of individual peaks. The unique capability to obtain simultaneous sulfur and hydrocarbon chromatograms from a single detector sets it apart from other sulfur detection technologies.

Widely used in laboratory and process gas chromatographs to analyze sulfur species and total sulfur levels in liquid-phase petrochemicals, you will also find the Model 5383 hard at work analyzing organophosphorus pesticides, pharmaceuticals, flavor, and fragrances, beverage-grade CO2, chemical warfare agents, and more.

Designed for a Variety of Applications

Compact and modular, the new, second-generation 5383 Pulsed Flame Photometric GC Detector offers greater ease of use, design flexibility, and analytical refinement than its predecessor, while retaining the proven technology features that laboratories around the world rely on for accurate results.

The 5383 PFPD is a great instrument if you’re monitoring any of the following: Sulfur in petrochemicals, organophosphorus pesticides, flavor and fragrance analyses, Sulfur in beverage-grade CO2, simultaneous PFPD and MS detection, chemical warfare agents, Organotin compounds & Organometallic detection, explosives analysis P, S, As, Si detection (semiconductors), or Sulfur in pharmaceuticals.

With a significant improvement in signal processing and a 10-fold increase in sensitivity over most traditional FPDs, the detector makes accurate analysis of sulfur, phosphorus, and other elements easier than ever before. The intuitive, easy-to-use software suite with integrated monitoring and analysis capabilities provides a powerful tool for parameter optimization, data analysis, and more. Reliable and cost-effective, the 5383 uses significantly less gas than SCDs or FPDs and requires considerably less maintenance.

​​Sulfur <1 pg S/sec
Phosphorus <100 fg P/sec


Sulfur Signal-to-Noise >300 (at 10 pg S/sec elution rate peakto-peak noise)
Drift (S or P) <10x peak-to-peak noise in 20 min


Selectivity (at Optimum Detectivity Levels)
Sulfur >106 S/C
Phosphorus > 105 P/C (selectivity is adjustable with a trade-off in detectivity)
Detector Linearity
Sulfur Quadratic in response. Linear to approximately 2.4 orders of magnitude. Detector (nonlinear) dynamic range ~3 orders of magnitude.
Phosphorus First order linear over approximately 5 orders of magnitude.
Response Uniformity​ Equimolor ±8% (S, P)
Chromatographic Peak Tailing <0.2 sec in S and P


Gas Requirements
Carrier He or H2 at 40 psig; 99.8% purity or better
Air 40 psig; zero air (CGA grade E)
Hydrogen​ 40 psig; 99.995% purity or better (electrolytic grade)
Power Requirements 115/230 VAC


Computer Requirements
Operating System Windows® 7, 8 and 10
Communication Ports USB (1)
Minimum Temperature 180 °C
Maximum Temperature 420 °C
Carrier Gas 5 mL/min maximum flow rate helium; up to 10 mL/min using H2 carrier gas


Typical Gas Consumption
H2 10–15 mL/min
Air 20–30 mL/min
Humidity​ 5–80% relative humidity
Altitude 2,000 m maximum


Safety/EMI Certifications
RoHS Directive 2011/65/EU
EMC Directive 2004/108/EC
EN 61326-1:2013
CISPR 11:2009 and A1:2010
Safety​ LVD 2006/95/EC
EN 61010-1:2010 3rd


Controller Board Inputs and Outputs
Two Channels (to GC) 0-1 V
One Serial RS-485
One Signal In​ Electrometer; PFPD
High Voltage Out PMT 0-1,000 V
Ignitor Current 0-3.4 A
S/W HV Protection PMT Protection
Timed Events (from GC Remote Start) Autozero, range, attenuation, ignitor, mode or channel (e.g. S, P, C), and record
Controller Dimensions 17.5 cm H x 6 cm W x 25 cm D
(6.9″ H x 2.4″ W x 9.9″ D)
Pneumatics Module Dimensions 17.5 cm H x 6 cm W x 27.5 cm D
(6.9″ H x 2.4″ W x 10.3″ H)
Pneumatic Control EPC-Ready Control utilizes GC electronic flow control of detector gases or manual flow control of detector gases with mass flow controllers and metering valve

Xylem Lab Food & Safety Brochure


OI Analytical GC Detectors


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