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Image Number K8691-1

Nutritionist Sarah Booth (right) and technician Molly Damon review an HPLC chromatogram that shows phylloquinone and dihydrophylloquinone in human plasma. Vitamin K analysis is conducted under yellow light because the nutrient is sensitive to photooxidation.

Photo by Scott Bauer.

640 pixels wide: (k8691-1.jpg)

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