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Chromatography


Chromatography

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Item Number:
SM N6901
Price:
$29.95
Format:
VHS
     Click for DVD Format   
Length:
23 min.
Copyright:
2002
Closed Caption:
Yes
Producer:
Schlessinger Media
Grade Level:
9 - 12
ISBN:
1572254831
UPC:
753201052438
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! Video Series. Includes a Teacher's Guide.

Only available in the US.


Series Name:
    Science Lab Investigations! Video Series



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