1975
DOI: 10.1007/bf01257794
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Quantitative Auswertung von Ringchromatogrammen mit Hilfe eines Mikroskop-Photometers

Abstract: Die Auswertung von Ringofenchromatogrammen erfolgt meistens halbquantitativ durch visuellen Vergleich mit einer Standardskala 1. Zwecks quantitativer Auswertung wurde versucht, den Ring zu eluieren und das Eluat komplexometrisch zu titrieren ~-4. Andererseits werden die ausgeschnittenen Ringe oxydiert, gelSst und nach entsprechender Farbreaktion kolorimetriert 5. Eine direkte photometrische Auswertung der Ringe im Auflichtverfahren haben Friedrichs und Grover 6 beschrieben.Nachfolgend wird fiber eine photometr… Show more

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1976
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“…Recently, two contributions have dealt with this possibility again: Friedrichs and Grover59 evaluated the intensity of the rings by light reflectance measurement for the determination of iron as Prussian blue in air pollution studies; Du et aZ. 60 measured the light absorption of the rings, cellulose acetate filters being used instead of ordinary filterpaper. In order to achieve even better transparency of the supporting matrix, the filters were moistened with paraffin oil before the final photometric measurement, and in this way…”
Section: Cationsmentioning
confidence: 99%
“…Recently, two contributions have dealt with this possibility again: Friedrichs and Grover59 evaluated the intensity of the rings by light reflectance measurement for the determination of iron as Prussian blue in air pollution studies; Du et aZ. 60 measured the light absorption of the rings, cellulose acetate filters being used instead of ordinary filterpaper. In order to achieve even better transparency of the supporting matrix, the filters were moistened with paraffin oil before the final photometric measurement, and in this way…”
Section: Cationsmentioning
confidence: 99%