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Technofile : Spot the arsenic

点击量:   时间:2017-09-16 03:02:05

Researchers at the Technical University of Freiberg in Germany have developed a new spectral photometry method for measuring traces of arsenic without having to take the sample back to the laboratory. The test can detect as little as 5 parts per billion of arsenic—an amount that could previously only be pinpointed in a lab. “The technique is really useful, as there were no reliable methods for on-site testing available yet,” says Broder Merkel,