Describes a DNA fingerprinting simulation that uses vegetable food coloring and plastic food containers instead of DNA and expensive gel electrophoresis chambers. Allows students to decipher unknown combinations of dyes in a method similar to that used to decipher samples of DNA in DNA fingerprint techniques. (JRH)

Presents an activity in which college chemistry students collaboratively identify chemical substances. (MKR)

Reports an undergraduate analytical chemistry experiment utilizing the high performance liquid chromatograph. (SL)

Presents an experiment which includes fractional distillation with gas-liquid chromatography (GLC) and infrared analysis. Objectives are to introduce students to fractional distillation and analysis of each fraction by GLC, to induce them to decide if each fraction is sufficient for infrared analysis, and to identify unknowns. (Author/JN)

Presents an undergraduate analytical chemistry experiment that promotes an interpretation of the molecular aspects of solute partitioning, enhancing student understanding of separation science and liquid chromatography. (CS)

Describes urinalysis techniques for dry weight measurement, examination of urinary calculi (stones), and determination of the presence of blood and blood pigments. Also presented are directions for preparing required reagents. (WB)

This experiment, in which students experiment on themselves, involves carrying out analytical methods for vitamin C using instrumental and "wet" techniques. (SA)

Uses crepe paper for the introduction of spectrophotometric concepts. Dyes used in the manufacturing of the crepe paper dissolve rapidly in water to produce solutions of colors. The variety of colors provides spectra in the visible spectrum that allow students to grasp concepts of absorption and transmission. (AIM)