17 To summarise

In this investigation you devised a sampling plan to test your hypothesis. You also learnt how chromatography is used to separate mixtures of compounds and how a 'sample' library can be used to identify particular compounds present in a mixture using mass spectrometry. You applied these techniques in the qualitative analysis of pesticides in samples collected from a coastal bay. You also did a quantitative analysis by determining the concentrations of pesticides present in your selected samples by using the peak areas on the chromatograms.

Experiment complete

If you have enrolled on this short course and worked through all the online materials for this experiment you are eligible for a Statement of Participation which you will receive via email.

If you are interested in other online Science experiments, visit the OpenScience Lab [Tip: hold Ctrl and click a link to open it in a new tab. (Hide tip)] . You can also find many short free courses on Science on OpenLearn