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Fluorimetric estimation of acridine in airborne and other particilates

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Summary

Two methods are described for the separation of acridine from organic airborne particulates or coal-tar-pitch. A basic fraction was not necessary for these analyses. With the help of instant thin-layer chromatography (ITLC) with glass-fiber paper impregnated with silica gel, acridine was separated in 18 minutes from the tens of thousands of other compounds in the sample. Separation by paper electrophoresis required about 100 minutes, but the separation was sharper in that acridine and an alkylacridine were separated from each other and also from the quinolinic compounds above them, the larger aza arenes below them, and the innumerable non-basic compounds at the origin. After separation, the samples were assayed by scanning the standard and “unknown” acridine spots at F 345/475. Although the electrophoretic method requires more time, it is superior to the ITLC method for estimation of acridine in samples from urban air and from source effluents.

Zusammenfassung

Zwei Methoden zur Abtrennung von Acridin aus organischen Luftverunreinigungsteilchen oder aus Teerpech wurden beschrieben. Die Gewinnung einer basischen Fraktion war hierzu nicht nötig. Auf mit Kieselgel imprägniertem Glasfaserpapier wurde Acridin dünnschichtchromatographisch in 18 Minuten von den zahllosen anderen in der Probe enthaltenen Verbindungen getrennt. Die papierelektrophoretische Trennung erfordert 180 Minuten, ist aber schärfer, da Acridin und ein Alkylacridin voneinander, von den darüberliegenden Chinolinverbindungen, den Azaarenen darunter und von den zahllosen nicht basischen Verbindungen am Start getrennt werden. Nach der Trennung wurden die Acridinflecken durch Fluoreszenzmessung mit Standardproben verglichen. Wiewohl die Elektrophorese mehr Zeit beansprucht, ist sie der raschen Dünnschichtchromatographie bei der Bestimmung von Acridin in Stadtluftproben und technischen Abfallprodukten überlegen.

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Sawicki, E., Engel, C.R. Fluorimetric estimation of acridine in airborne and other particilates. Mikrochim Acta 57, 91–99 (1969). https://doi.org/10.1007/BF01216669

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