'Coffee-Ring Effect' Harnessed to Provide Rapid, Low-Cost Analysis of Tap Water (IMAGE)

American Chemical Society

'Coffee-Ring Effect' Harnessed to Provide Rapid, Low-Cost Analysis of Tap Water

Caption

Tap water droplets from two buildings on the Michigan State University campus leave behind different coffee-ring patterns; "hard" water is shown on the left, and water treated with a softener is shown on the right.

Credit

Xiaoyan Li

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Please credit Xiaoyan Li when using this image.

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