The 6-hour duration was sufficient for better oil extraction and higher yields using hexane as the apolar solvent. Generally speaking, the solvent extraction process is very efficient, especially for ...

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In the presence of these impurities and the variable heparin content in the crude heparin samples, spiked OSCS was reliably detected to the 0.1% w/w level using a plate reader. Finally, authentically ...

The characteristics of sodium dodecyl sulfate (SDS) micelles bound to gelatin have been studied by fluorescence using 8-anilino-1-naphththalene sulfonic acid (ANS) as probe. Like gelatin, ANS binds in ...