Feature

Eau, Brother!

Electronic noses provide a new sense of the future.

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2:33pm, August 16, 2002

The royal food taster and the proverbial canary in the coal mine: Early methods for detecting toxic substances were usually biological. Over the years, food and environmental risk assessment gradually adopted more refined techniques based on chemistry and physics, but the equipment that's required tends to be bulky and the processes, slow.

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