Sample Techniques in Gas Chromatography

Static and Dynamic Headspace Analysis including Purge & Trap (P&T)

Abstract

Sampling Techniques in Gas Chromatography

Abstract

“Sampling Techniques in Gas Chromatography” is a POGIL learning-cycle activity designed for introductory analytical chemistry courses such as quantitative analysis or instrumental analysis.  This activity introduces students to static and dynamic headspace analysis including the purge and trap technique.  Useful prior knowledge includes vapor pressure, boiling point, and a rudimentary understanding of gas chromatography.  After completing the activity, students will be able to explain and compare and contrast these methods.

Level: lower to mid-level college
Setting: classroom
Activity Type: learning cycle
Discipline: chemistry
Course: Analytical Chemistry, Quantitative Analysis, Instrumental Analysis
Keywords: gas chromatography, headspace analysis, purge & trap