Experimental investigation of electrodeless discharge lamps as excitation sources for atomic fluorescence flame spectrometry

Shapes of Analytical Curves in Flame Spectrometry

“…It is also interesting to note that conventional line sources result in greater a values for any given atomic concentration than continuum sources with monochromators having a spectral bandwidth, s, for which our expressions are valid [i.e., an s > 0.1 A, see De Galan, McGee, and Winefordner (I)]. However, the background noise of a continuum source is generally lower than that of a line source (29). Therefore, comparable limits of detection could be obtained using either system, and it is surprising that no commerical AA instrumentation utilize continuum sources.…”

Properties and applications of surface wave produced plasmas

“…Furthermore, the fact that the radial profile of the population density of radiative levels has a maximum close to the tube wall (Section 3 .1.1 ) enables large emission intensities to be recorded outside the plasma, even when photon trapping is important. This seems to be a distinct advantage of microwave produced plasmas over DC positive column plasmas, where the emitted intensity is maximum on the axis but might be significantly reduced in crossing the plasma [53].…”

Photodegradation of HCFC-22 Using Microwave Discharge Electrodeless Mercury Lamp with TiO2Photocatalyst Balls

“…Characteristics of the MDEML. Microwave discharge electrodeless lamps (MDELs), a unique light source, were first reported in 1968 [23]. The principle involved in MDELs is the absorption of high-frequency electromagnetic waves produced by a microwave generator by noble gases and vaporizable elements in the lamp, which results in UV emission.…”