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{short description of image}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)   Please visit our Image Gallery


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