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Chromatography


Chromatography

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Item Number:
SM V6901
Price:
$29.95
Format:
DVD
     Click for VHS Format   
Length:
23 min.
Copyright:
2002
Closed Caption:
Yes
Producer:
Schlessinger Media
Grade Level:
9 - 12
ISBN:
1417107324
UPC:
753201168634
Summary:
In Chromatography, viewers learn a valuable technique for the rapid separation of chemical mixtures. After the scientific principles of paper chromatography are conveyed through real-life demonstrations and clear graphics, students move into the lab to analyze a number of ink samples, calculating Rf values for the pigments found in each sample. Students investigate the experimental techniques used to determine if two samples are identical by creating a unique visual "fingerprint" of each tested substance. They also explore the factors affecting each separation and extend the investigation by choosing different solvents for the mobile phase. See how gas chromatography is used in arson investigations and how thin-layer chromatography can be utilized to confirm a document's authenticity. Part of the multivolume Science Lab Investigations! DVD Series. Includes a Teacher's Guide.

Only available in the US.


Series Name:
    Science Lab Investigations!



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