Volume 95 Issue 34 | p. 10 | Concentrates
Issue Date: August 28, 2017

Water quality revealed in a droplet

A new low-cost method assesses water chemistry by analyzing how it evaporates
Department: Science & Technology
News Channels: Analytical SCENE
Keywords: Water, water quality, coffee ring effect

Consumers want to know what is in the water coming out of their taps. But there is a huge variety of water-quality tests on the market, which can be daunting for the average person. At the ACS national meeting, Rebecca H. Lahr, a civil and environmental engineer at Michigan State University, presented a simple, low-cost, “open source” water test. Her method is based on the unique residue patterns formed by water . . .

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