Estimation of Azadirachtin-A Content of Emulsifiable and Solution Concentrates of Neem
Open Access
- 1 July 1995
- journal article
- Published by Oxford University Press (OUP)
- Vol. 78 (4) , 893-896
- https://doi.org/10.1093/jaoac/78.4.893
Abstract
A column chromatographic cleanup method to remove aliphatic and aromatic solvent components and different surfactants present in formulated neem was developed. A glass column containing silica gel (60–120 British Standard Sieve) and 250 mL hexane–acetone (6 + 4) was used. Impurities interfering in the region of the azadirachtin-A peak were removed by fractional elution. Recovery of azadirachtin-A was greater than 81%.Keywords
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