Chlorophyll chromatography on chalk?

Dorothy Klein dak at
Tue Mar 8 15:52:27 EST 1994

	Does anyone know of a solvent system to separate
chlorophylls/plant pigments using a piece of blackboard chalk as
the chromatographic support?  Twsett, around the turn of the century,
is credited with separation of chlorophylls on chalk.  
However, the origianl reference is in turn-of-the-century Russian.
Is there a modern update?

Dorothy Klein  
D.E. Eveleigh
Rutgers Univ, Dept. Biochemistry and Microbiology

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