FOR the paper chromatography of steroids several colour reagents are used, such as 2,4-dinitrophenyl-hydrazine, Zimmermann's reagent, phosphomolybdic acid, antimony trichloride, etc. Their common ...

For example, pure ethanol boils at 78°C and pure water boils at 100°C. Paper chromatography is a method for separating dissolved substances from one another. It is often used when the dissolved ...

A recent study conducted at the University of Georgia, (Athens, Georgia) presented a validated method for quantifying 18 ...

A pencil line is drawn, and spots of ink or plant dye are placed on it. There is a container of solvent, such as water or ethanol. A pure substance will only produce one spot on the chromatogram ...