Spectrophotometric Determination of Enniatin a and Valinomycin in Fungal Extracts By Ion Complexation

Autor:	D. W. Russell, T. K. Audhya
Rok vydání:	1973
Předmět:	Potassium hydroxide Chromatography Potassium picrate Chemistry Picrate Biochemistry (medical) Clinical Biochemistry Ethylene Dichloride Ionophore food and beverages Biochemistry Analytical Chemistry Ion chemistry.chemical_compound Valinomycin Electrochemistry Organic chemistry Enniatin Spectroscopy
Zdroj:	Analytical Letters. 6:265-274
ISSN:	1532-236X 0003-2719
DOI:	10.1080/00032717308062205
Popis:	When an ethylene dichloride solution of enniatin A is shaken with potassium picrate in potassium hydroxide solution, picrate anion is extracted into the organic phase in amount proportional to the enniatin concentration. Enniatin A can thus be determined spectrophotometrically in the range 5-60 μg/ml. Neutral lipids do not interfere. Valinomycin can be determined similarly, but cyclodepsipeptides that lack cationophoric properties are not estimated in this method.
Databáze:	OpenAIRE
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