In short
Headspace analysis samples the volatile molecules in the air around a material, rather than extracting the material itself. It can show why a living flower smells unlike its absolute. The reference guide covers reconstructing a fragrance from such data. This study guide helps you understand the idea through your own nose, without an instrument.
What you will learn
- Explain what headspace sampling captures
- Explain why headspace differs from an extract
Before this lesson: How to Read a GC-MS Report
What to look for as you read
- Why vapors over-represent volatile materials.
- How the data is turned into an accord, and what judgment that involves.
- Which methods the guide mentions, ahead of the analytical track's comparison.
Practical exercise: Flower versus extract
- Get a fresh flower or herb and, if possible, an extract from the same plant.
- Smell the living plant in a closed jar for a few minutes, and write what you notice.
- Smell the extract at 1% on a strip, and write what you notice.
- Note what is shared and what is different.
- Write what a headspace study would add, and what you would still need to decide yourself.
You have done this well if your note connects the differences to volatility and processing, as far as you can tell, and marks your guesses as guesses.
Knowledge check
Written and reviewed by the RUŌOD Lab team. This is general education, not legal, regulatory, medical or safety advice. Example dilutions and exercises are for learning, are not validated products, and have not been safety-assessed. Completing a lesson confers no qualification. How we check these lessons.