Experiment 9: fluorometric determination of riboflavin in energy drinks

Chapters in this book

1. Frontmatter I
2. Preface V
3. Contents VII
4. Laboratory safety rules guidelines IX
5. Guidelines for writing laboratory reports 1
6. Experiment 1: determination of refractive index and molar refraction 3
7. Experiment 2: determining the percentage composition of unknown mixture by refractive index 13
8. Experiment 3: measurement of sodium and potassium using flame emission spectrometry 15
9. Experiment 4: determination of calcium concentration using atomic absorption spectrometer 25
10. Experiment 5: determination of complex ion composition by Job’s method of continuous variation 29
11. Experiment 6: determination of chlorides and sulfated by nepheloturbidometry 39
12. Experiment 7: determination of absorption maxima and effect of solvents on absorption maxima of organic compounds 43
13. Experiment 8: determination of chromium and manganese in a mixture 47
14. Experiment 9: fluorometric determination of riboflavin in energy drinks 53
15. Experiment 10: Infrared spectroscopy of solids and solutions 57
16. Experiment 11: spectrophotometric determination of iron by 1,10-phenanthroline in drinking water 64
17. Experiment 12: absorption spectrum of an indicator in dependence on the pH value 70
18. Experiment 13: identification of a chemical compound using thin-layer chromatography 78
19. References 83
20. Index 85