Analysis of Phenylephrine and Tetracaine by Filter Paper Chromatography * *Wyeth Laboratories, Radnor, Pa.

Schriftman, Herbert

doi:10.1002/jps.3030480211

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Ethinyl Estradiol Alone and In Combination With1

Combination Of Phenylephrine Hydrochloride1

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1961

1971

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Cited by 11 publications

(2 citation statements)

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“…However, as for the quantitative aspects of chromatography as applied to assay of local anesthetics after the compounds have been separated, they find elution techniques undesirable. The experiences reported in this paper and in previous publications (1,2) indicate that satisfactory quantitation of these nicthods requires the use of photoelectric densitometry, thereby eliminating the need for elution. Measurement of Total Color Density of Spots.-As stated above and in previous publications (1, 2) the total color densities of the reference and sample spots were compared by direct proportion.…”

Section: Ethinyl Estradiol Alone and In Combination Withmentioning

confidence: 56%

“…This paper was then cut as required to permit separate quantitative assay of the active ingredients. The dextromethorphan and chlorpheniramine were located and assayed based on the characteristic orange-red spots developed by them when sprayed with modified Dragendorffs reagent (iodobismuthate) as described before (1,2).…”

Section: Combination Of Phenylephrine Hydrochloridementioning

confidence: 99%

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