date-created: '2015-08-06'
date-updated: '2025-03-06'
manifest-author:
    name: Appropedia
    email: admin@appropedia.org
title: 'Open-Source Photometric System for Enzymatic Nitrate Quantification'
description: 'Nitrate, the most oxidized form of nitrogen, is regulated to protect people and animals from harmful levels as there is a large over abundance due to anthropogenic factors. Widespread field testing for nitrate could begin to address the nitrate pollution problem, however, the Cadmium Reduction Method, the leading certified method to detect and quantify nitrate, demands the use of a toxic heavy metal. An alternative, the recently proposed Environmental Protection Agency Nitrate Reductase Nitrate-Nitrogen Analysis Method, eliminates this problem but requires an expensive proprietary spectrophotometer. The development of an inexpensive portable, handheld photometer will greatly expedite field nitrate analysis to combat pollution. To accomplish this goal, a methodology for the design, development, and technical validation of an improved open-source water testing platform capable of performing Nitrate Reductase Nitrate-Nitrogen Analysis Method.'
keywords: 'nitrogen testing, open source hardware, water quality, portable photometer, open source scientific hardware, water, LED, NinjaFlex, Plastic'
project-link: 'https://www.appropedia.org/Open-Source_Photometric_System_for_Enzymatic_Nitrate_Quantification'
contact:
    name: U
    social:
        platform: Appropedia
        user-handle: U
version: 104
development-stage: D
made: false
image: 'https://www.appropedia.org/w/images/3/32/Osnitratetester.png'
license:
    documentation: C
licensor:
    name: U
    affliation: C
    contact: 'https://www.appropedia.org/U'
documentation-home: 'https://www.appropedia.org/Open-Source_Photometric_System_for_Enzymatic_Nitrate_Quantification'
documentation-language: e