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For the textbook, chapter, and section you specified we found
7 Videos
289 Journal Articles
2 Other Resources
Videos: First 3 results
Centrifuging a Sample  John W. Moore, Jerrold J. Jacobsen, Lois M. Browne, John F. Zimmerman
The demonstration on this page shows a technique that should not be used by undergraduate chemistry laboratory. This video shows what happens to sample in a centrifuge while the centrifuge is on, and the result of stopping the centrifuge improperly. A narrative is included in this video: The centrifuging process allows the solvent to completely settle out. The jarring caused by hand braking destroys the distinct separation between supernatant and solid.
Separation Science |
Laboratory Equipment / Apparatus
Centrifuging safety considerations, centrifuging a sample, loading and unloading a centrifuge, removing the supernatant, and washing the precipitate are discussed and demonstrated.
Laboratory Equipment / Apparatus |
Separation Science
Use of a separatory funnel to carry out extraction is demonstrated.
Laboratory Equipment / Apparatus |
Separation Science
View all 7 results
Journal Articles: First 3 results.
Greener Alternative to Qualitative Analysis for Cations without H2S and Other Sulfur-Containing Compounds  Indu Tucker Sidhwani and Sushmita Chowdhury
The classic technique for the qualitative analysis of inorganic salts and mixtures relies on highly toxic hydrogen sulfide. Increasing environmental awareness has prompted the development of a green scheme for the detection of cations by spot tests that is simple and fast.
Sidhwani, Indu Tucker; Chowdhury, Sushmita. J. Chem. Educ. 2008, 85, 1099.
Green Chemistry |
Qualitative Analysis |
Separation Science
HPLC Analysis of α- and β-Acids in Hops  Travis M. Danenhower, Leyna A. Force, Kenneth J. Petersen, Thomas A. Betts, and Gary A. Baker
Describes a high-performance liquid chromatography method for the quantitation of the predominant a-acids (humulone, cohumulone, and adhumulone) and -acids (lupulone, colupulone, and adlupulone) present in hops.
Danenhower, Travis M.; Force, Leyna A.; Petersen, Kenneth J.; Betts, Thomas A.; Baker, Gary A. J. Chem. Educ. 2008, 85, 954.
Chromatography |
Food Science |
Instrumental Methods |
Plant Chemistry |
Quantitative Analysis |
Separation Science
Separation of the Carotenoid Bixin from Annatto Seeds Using Thin-Layer and Column Chromatography  James V. McCullagh and Nicholas Ramos
In this experiment the carotenoid bixin is isolated from annatto seeds using column chromatography and then analyzed by UVvis and IR spectroscopy. The procedure has several advantages over previous pigment separation experiments.
McCullagh, James V.; Ramos, Nicholas. J. Chem. Educ. 2008, 85, 948.
Chromatography |
Dyes / Pigments |
Natural Products |
Separation Science |
Thin Layer Chromatography |
UV-Vis Spectroscopy
View all 289 articles
Other Resources: 2 results
The Separation of Mixtures  Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Separation Science
Distillation  Ed Vitz, John W. Moore
A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Physical Properties |
Separation Science