Gas chromatography and GC-MS -A-level Chemistry- 2 lessons-workbook and teacher PowerPoint

Student workbook, teacher PP -for A Level Chemistry A Year 2 Unit 29 Chromatography and Spectroscopy, Chapter 29.2 Gas chromatography and GC-MS.
This resource contains material for two lessons. The first lesson covers Gas chromatography; the second, covers GC-MS and contains many questions for students to complete.
The workbook contains notes / different types of tasks and assessment tasks/exam questions that will allow students to gain the knowledge / develop skills and apply them to check / assess their learning on the following:
• Describe gas chromatography, GLC and Mass spectrometry, MS
• Interpret gas chromatograms in terms of retention times and the approximate proportions of the components of a mixture.
• Interpret mass spectra
• Calculate the percentage composition of a mixture from the relative peak areas in a gas chromatogram
• Draw and use a calibration curve to calculate the amount of a substance in a mixture from a gas chromatogram
• Explain how mass spectrometry can be combined with gas chromatography
in GC–MS to provide a far more powerful analytical tool than gas chromatography alone
• Discuss limitations and strengths of GC and MS as separate tools of analysis.

The PP for teachers supports the workbook and contains the answers to Tasks and exam questions in the Workbook. Most answers are revealed in steps .
The resources were prepared with the use of A Level Chemistry for OCR A textbook and some diagrams and questions used in this lesson have been taken this book.
This resource could be used in home learning or when students cannot attend the lesson and need to catch up with the missed work.