Flame Photometric Detector
Flame Photometric Detector - FPD
The Flame Photometric Detector (FPD) ensures maximum sensitivity towards sulfur and phosphorous emissions without significant interference from hydrocarbon species.
The FPD selectively detects compounds containing sulfur or phosphorus. Outstanding performance can be observed in the analysis of sulfur compounds in natural gas and organophosphorus pesticides in agriculture, food, flavor and fragrance applications.
in the Flame Photometric Detector (FPD) the column effluent is mixed with an air/oxygen mixture and combusted in a flame surrounded by an envelope of hydrogen; the flame being seated within the confines of a high-walled cup. Organic species in the sample are combusted and excited to higher energy states in the reducing atmosphere of the flame. The plasma above the cup is viewed by a conventional photomultiplier tube through a narrow band.pass filter on the appropriate wavelength according to the element of interest. It shows good sensitivity and selectivity for both phosphorous and sulfur organic compounds.