A recent collaboration with the Open Sustainability Technology Lab at Michigan Technological University has resulted in the creation of an open-source smartphone-linked handheld photometer. The device was 3-D printed in Dr. Pearce's laboratory in Houghton, Michigan. This machine replaces comparable devices which are more expensive and are optimized to use with outdated nitrate methods such as ones which use cadmium or zinc. Last week,PLOS ONE published the collaborative effort on the team's device which includes instructions on how to make one for less than $100. NECi Superior Enzymes is continuing to develop this technology to offer a low-cost commercial option to use in conjunction with our enzyme based test kits.
Measurement of ortho-phosphate in soil extracts usually involves sending dried samples of soil to a laboratory for analysis and waiting several weeks for the results. Phosphate determination methods often involve use of strong acids, heavy metals, and organic dyes. To overcome limitations of this approach, we have developed a phosphate determination method which can be carried out in the field to obtain results on the spot. View the Elsevier MethodsX Article from Science Direct.
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Open-Source Photometric System for Enzymatic Nitrate Quantification