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Open-Source Photometric System for Enzymatic Nitrate Quantification.

Wittbrodt BT, Squires DA, Walbeck J, Campbell E, Campbell WH, Pearce JM - PLoS ONE (2015)

Bottom Line: 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.This approach is evaluated for its potential to i) eliminate the need for toxic chemicals in water testing for nitrate and nitrite, ii) reduce the cost of equipment to perform this method for measurement for water quality, and iii) make the method easier to carryout in the field.This allows for greater access to the technology and the new, safer nitrate testing technique.

View Article: PubMed Central - PubMed

Affiliation: Department of Materials Science & Engineering, Michigan Technological University, Houghton, MI, United States of America.

ABSTRACT
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. This approach is evaluated for its potential to i) eliminate the need for toxic chemicals in water testing for nitrate and nitrite, ii) reduce the cost of equipment to perform this method for measurement for water quality, and iii) make the method easier to carryout in the field. The device is able to perform as well as commercial proprietary systems for less than 15% of the cost for materials. This allows for greater access to the technology and the new, safer nitrate testing technique.

No MeSH data available.


Screenshot of Android phone App interface for the options for a specific sample.
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pone.0134989.g010: Screenshot of Android phone App interface for the options for a specific sample.

Mentions: Screenshots for the open-source Android App interface are shown in Figs 9 and 10. The source code is available at https://github.com/NitrateEliminationCo/NECiOpenWater. From the home screen (Fig 9) users can 1) Manage saved samples from a sample list, 2) take a unique reading, 3) adjust the settings or 4) see the about screen with contact information for NECi. From the Managing Sample Lists users can create a new Sample List, save samples of that type or view and edit a list of saved samples. Once a Sample List is selected, the name of the list is displayed in the Action Bar as well as the ability to add a sample to the list and export the list to another application.


Open-Source Photometric System for Enzymatic Nitrate Quantification.

Wittbrodt BT, Squires DA, Walbeck J, Campbell E, Campbell WH, Pearce JM - PLoS ONE (2015)

Screenshot of Android phone App interface for the options for a specific sample.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4526554&req=5

pone.0134989.g010: Screenshot of Android phone App interface for the options for a specific sample.
Mentions: Screenshots for the open-source Android App interface are shown in Figs 9 and 10. The source code is available at https://github.com/NitrateEliminationCo/NECiOpenWater. From the home screen (Fig 9) users can 1) Manage saved samples from a sample list, 2) take a unique reading, 3) adjust the settings or 4) see the about screen with contact information for NECi. From the Managing Sample Lists users can create a new Sample List, save samples of that type or view and edit a list of saved samples. Once a Sample List is selected, the name of the list is displayed in the Action Bar as well as the ability to add a sample to the list and export the list to another application.

Bottom Line: 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.This approach is evaluated for its potential to i) eliminate the need for toxic chemicals in water testing for nitrate and nitrite, ii) reduce the cost of equipment to perform this method for measurement for water quality, and iii) make the method easier to carryout in the field.This allows for greater access to the technology and the new, safer nitrate testing technique.

View Article: PubMed Central - PubMed

Affiliation: Department of Materials Science & Engineering, Michigan Technological University, Houghton, MI, United States of America.

ABSTRACT
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. This approach is evaluated for its potential to i) eliminate the need for toxic chemicals in water testing for nitrate and nitrite, ii) reduce the cost of equipment to perform this method for measurement for water quality, and iii) make the method easier to carryout in the field. The device is able to perform as well as commercial proprietary systems for less than 15% of the cost for materials. This allows for greater access to the technology and the new, safer nitrate testing technique.

No MeSH data available.