Die Anwendung hochfrequenter Plasmaflammen als spektrochemische Lichtquelle

Abstract

Generatoren zur Erzeugung hochfrequenter Plasmaflammen. Vorstellungen über den Entladungsvorgang. Einsprühen von Salzlösungen. Verhalten von Stickstoff und Argon als Arbeitsgas. Die „kalte‟ Argonflamme. Bedeutung der Termkonfiguration für die Anregungsprozesse. Eichkurve. Wechselwirkungserscheinungen der Entladungspartner. Temperaturbestimmungen.

Emission Spectrometry

“…A torch designed by West and Hume (338) gave considerably better detection limits than did those described in References ( 112) and ( 336), but it must be kept in mind that low limits of detection on singleelement solutions are not always the most important criterion of the quality of a source, since matrix effects can be more or less serious in different discharges. Another design of a high-frequency source was given by Tappe and van Calker (49,311), who found serious matrix effects when the sample contained elements of low ionization potential. Undoubtedly, much more research will be needed before an optimum design is achieved.…”

History of inductively coupled plasma atomic emission spectral analysis: from the beginning up to its coupling with mass spectrometry

“…12 He also compared microwave induced plasma with capacitive coupled microwave plasma and inductively coupled plasma excitation. 13,14 He tested the appropriate generators, searched for the best usable frequency, and applied different burning gases (argon, nitrogen and air). Spectra were recorded and detection limits were obtained spectrographically by using photographic plates (in mg ml À1 level).…”