1. Analysis of Tropicana Orange Juice for Calcium & Vitamin C Kate Penrod & Ashley Kimble

2. Objective Calculate Calcium content Calculate Vitamin C content Compare to Tropicana’s claims

3. Importance of Experiment Calcium – Most abundant mineral – Regulates cellular processes Vitamin C – Reducing agent – Antioxidant

4. Failed Procedures Procedure 1 – No filtration – No dilution Procedure 2 – Filtration through glass wool – Dilution with water Procedure 3 – Filtration through glass wool – Dilution with water – Centrifuge

5. Procedure Procedure 4 – Filtration through glass wool – Dilution with HCl – Centrifuge

6. EDTA Titration of Tropicana Calcium Plus D

7. EDTA Titration of Tropicana Calcium Plus D (Spiked)

8. Iodimetric Titration of Tropicana Calcium Plus D

9. Iodimetric Titration of Tropicana Calcium Plus D (Spiked)

10. Iodimetric Titration of Tropicana Regular

11. Iodimetric Titration of Tropicana Regular(Spiked)

12. Discussion & Conclusion Must simulate digestion Particles interfere with endpoint 6% DV Magnesium Vitamin C particles potentially large Vitamin C spike?