Pulsed flame photometric detector – a step forward towards universal heteroatom selective detection

摘要: Abstract Pulsed flame photometric detector (PFPD) is characterized by the added information available from chemiluminescence emission time dependence. We have found that many elements possess unique delayed emission, whose dependence can serve for their identification. Since carbon fast and confined to pulsed propagation across observation window, heteroatom be separated in of carbon, resulting a substantial enhancement detection sensitivity selectivity. For with emissions, PFPD superior conventional FPD sensitivity, selectivity against inter-heteroatom Semi-universal selective described illustrated this paper 28 including carbon. Among all studied, following show time-delayed emissions: S, P, N, As, Se, Sn, Ge, Ga, Sb, Te, Br, Cu In, which enables specific respect hydrocarbons. All other detectable Mn, Fe, Ru, Rh, Cr, Ni, Eu, V, W, B, Si, Al, Pb, Bi C, undelayed selectively detected range sensitivities, selectivities. The observed sensitivities selectivities were studied are tabulated presented. Detailed experimental conditions analysis data, spectra, dependence, compound used, as well chromatographic behavior each element provided so comprehensive guiding tool universal these PFPD. methylcyclopentadienyl manganese tricarbonyl Mn additive gasoline shown. In addition, simultaneous speciation, using dual-gate response ratio method, mixture compounds containing Ge N atoms.