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Permalink Technology Offers Farmers Low-Cost Soil and Water Test

IBM reports that it has developed technology to quickly and inexpensively test water and soil quality in the field. The AgroPad prototype is a paper device about the size of a business card that performs an on-the-spot chemical analysis of a soil or water sample with a microfluidics chip. The colorimetric test results on the card are then sent via smartphone for analysis that delivers a reliable test result. The device is currently able to measure pH, nitrogen dioxide, aluminum, magnesium, and chlorine in samples on-site.

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