If you have mastered the learning outcomes for Learning Module I, congratulations! Capillary electrophoresis is a flexible separation technique that requires some experience for developing methods that provide the selectivity and/or efficiency requisite for a particular application. Learning Module II is a self-guided exercise designed to teach you the basics of sample introduction and to introduce you to quantitative analysis. This will assist you in optimizing your run protocol for future capillary electrophoresis analyses. The procedures you have mastered in Learning Module I will be required to further refine your laboratory skills in the second Module.