Patent ID: 7906071
Filing Date: 2011-03-15
Classification: G01N

Abstract:
1. A flame photometric detector, comprising: a burner assembly configured to combust a sample of an effluent in a non-pulsed flame, the combusted sample emitting at least one excited molecule; a single selective optical filter configured to pass at least a first band of selected optical wavelengths, wherein the first band of selected optical wavelengths is within a range of approximately 335 through 405 nm and is bounded by non-transmissive regions, and wherein the first band of selected optical wavelengths includes an at least 20 nm range of wavelengths; and a photomultiplier tube configured to i) receive and amplify all of the selected optical wavelengths passed by the single selective optical filter, and ii) produce an electrical signal from which a presence of at least an excited sulfur S