D4680-1: A two-chamber vial containing milk, indicator dye, and a urease enzyme. : USDA ARS

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D4680-1

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A gloved hand holding a two-chamber vial containing the solution of milk, indicator dye, and a urease enzyme.

Image Number D4680-1

A close-up view of the two-chamber vial with the solutions of milk, indicator dye, and a urease enzyme. The app takes a picture of the vials, calculates the color differences, and provides the MUN value.

Photo by Jon Bleier.

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