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Photometer for Nitrate Testing
Open-source testing platform capable of performing Nitrate Reductase Nitrate-Nitrogen Analysis Method. Arduino compatible - read the tests on your Android device. This allows you test for nitrates in water, soil, etc.
TechForTrade
GPLv3
A free software license that requires that all work based on this must also be free software as in freely remixable and sharable by anyone under the same license but may be used commercially.
Description
BOM and instructions: http://www.appropedia.org/Open-Source_Photometric_System_for_Enzymatic_Nitrate_Quantification
For technical details see paper: Wittbrodt BT, Squires DA, Walbeck J, Campbell E, Campbell WH, Pearce JM. (2015) Open-Source Photometric System for Enzymatic Nitrate Quantification. PLoS ONE 10(8): e0134989. doi: 10.1371/journal.pone.0134989 open access: https://www.academia.edu/14702947/Open-Source_Photometric_System_for_Enzymatic_Nitrate_Quantificatio...
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Fraudrin68 added this to the Tools collection ago
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Medic265 added this to the Tools, Testing Stuff collection ago
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Joshua Pearce published this design ago