![Table 2 from COMPARISON OF THREE DIFFERENT SPECTROPHOTOMETRIC METHODS FOR DETERMINATION OF VITAMIN C LEVELS IN HUMAN BODY FLUIDS | Semantic Scholar Table 2 from COMPARISON OF THREE DIFFERENT SPECTROPHOTOMETRIC METHODS FOR DETERMINATION OF VITAMIN C LEVELS IN HUMAN BODY FLUIDS | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/68c0c422b0c0407cff3a0ea6e40a22c5f6d0b16c/4-Table2-1.png)
Table 2 from COMPARISON OF THREE DIFFERENT SPECTROPHOTOMETRIC METHODS FOR DETERMINATION OF VITAMIN C LEVELS IN HUMAN BODY FLUIDS | Semantic Scholar
![Frontiers | Zinc, Vitamin D and Vitamin C: Perspectives for COVID-19 With a Focus on Physical Tissue Barrier Integrity Frontiers | Zinc, Vitamin D and Vitamin C: Perspectives for COVID-19 With a Focus on Physical Tissue Barrier Integrity](https://www.frontiersin.org/files/Articles/606398/fnut-07-606398-HTML/image_m/fnut-07-606398-g001.jpg)
Frontiers | Zinc, Vitamin D and Vitamin C: Perspectives for COVID-19 With a Focus on Physical Tissue Barrier Integrity
![Ascorbic Acid vs Citric Acid Levels with Vitamin C Test Strips-Alternate Color Chart for Reduction of Dichlorophenolindophenol Redox Indicator Ascorbic Acid vs Citric Acid Levels with Vitamin C Test Strips-Alternate Color Chart for Reduction of Dichlorophenolindophenol Redox Indicator](https://www.indigoinstruments.com/images/products-resp/vitamin-c-citric-acid-color-chart.jpg)