HPLC Results of Soft Drink Additives

The attached chromatogram shows multiple soft drinks and a standard, showing which components are present in each soft drink.

(Source: http://www.dionex.com/en-us/images/page-cgram/img-82605-21531.jpg)

For (A) Minute Maid Orange Soda, peaks 2, 7, and 8 match, indicating the presence of citric acid, sorbate potassium, and benzoic acid.

For (B) Diet Coke, peaks 5, 6, and 8, match, indicating the presence of Caffeine, Aspartame (an artificial sweetener), and benzoic acid

For (C) Mountain Dew, peaks, 2, 5, and 8 match, indicating the presence of Citric acid, Caffeine, and Benzoic Acid.

The chromatogram attached below shows a HPLC of the sweeteners present in a soft drink.

(Source: http://www.shimadzu.com/an/industry/foodbeverages/qn50420000001y0d-img/qn504200000029me.gif)

The chromatogram attached below shows a HPLC of canned coffee, canned tea, and canned orange juice, along with the monosaccharides present in each of them.

(Source: http://www.hplc.com/shodex/img/s0928.gif)