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Chromatography
169
Chromatography—Laboratory Kits, continued
Separation of a Dye Mixture Using Chromatography— General Chemistry Guided-Inquiry Experiment
See page 20.
Metal Ion Chromatography—
Student Laboratory Kit
Have your students perform paper chromatography
using metal ions! In this kit, students learn more about the basics of paper chromatography by developing and evaluating their own chro- matograms. Students determine the components of an unknown solution through qualitative analysis of three different metal ions—copper, nickel, and cobalt. A great activity to revitalize your chromatography unit. Includes complete instructions and all necessary chemicals, chro- matography paper, and foil, along with background information and Instructor’s Notes with sample data and answers to all questions.
Complete for 30 students working in pairs. Large beakers or bottles are recommended for chromatography chambers and available sepa- rately. Toothpicks are also required.
Amino Acid Chromatography— Student Laboratory Kit
By: The Flinn Staff
Visualize the properties of amino acids using paper chromatography! The properties of amino acids—acidic or basic, polar or nonpolar, ionic or neutral—are enormously important. They dictate the struc- tures of proteins and the catalytic activity of enzymes. The purpose of this student laboratory kit is to separate a mixture of eight amino acids and identify an unknown based on their rate of migration during paper chromatography. Colorless amino acids are detected by spraying with ninhydrin after elution with the special chromatography solvent. Students discover that all amino acids are different and identify the least polar and most polar amino acids. This activity adds a fresh biological perspective to traditional chromatography experiments. Includes repro- ducible student handouts, detailed background information, complete Instructor’s Notes with sample data and answers to all questions, and all necessary chemicals and consumable supplies.
Complete for 30 students working in pairs. Perform this experiment in a fume hood or well-ventilated lab.
Liquid Chromatography—Classic General Chemistry Experiment See page 24.
Basic Principles of Column Chromatography—
Student Laboratory Kit
By: The Flinn Staff
There is more to spinach than meets the eye! A green leafy vegetable, spinach contains iron, chlorophyll, and several other pigments. Students are guided in the use of basic column chromatography techniques to find and identify these accessory pigments in spinach. Hands-on experi- ment will show how pigments are extracted at different rates based on the polarity of the eluent used. Once extracted, the pigments are collected and analyzed to determine relative polarity. Includes reusable columns, spinach powder, and all necessary chemicals.
Complete for 30 students working in pairs. Additional columns are available separately. Perform this experiment in a fume hood or well- ventilated lab.
Metal Ion Chromatography—Student Laboratory Kit AP7524
Amino Acid Chromatography—Student Laboratory Kit AP7199
Catalog No.
Description
Price/Each
AP7524
Metal Ion Chromatography—Student Laboratory Kit
$69.90
FB1360
Plastic Toothpicks, Blue, Pkg/200
4.00
GP1030
Beaker, Borosilicate Glass, 600-mL
4.60
Catalog No.
Description
Price/Each
AP7199
Amino Acid Chromatography—Student Laboratory Kit
$87.80
Basic Principles of Column Chromatography—Student Laboratory Kit AP7392
Catalog No.
Description
Price/Each
AP7392
Basic Principles of Column Chromatography— Student Laboratory Kit
$65.85
AP7613
Chromatography Columns, Economy Choice, Pkg. of 15
29.95
CHROMATOGRAPHY—LABORATORY KITS continued on next page.