Journal of Biosystems Engineering

  • 제37권3호
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  • Pages.209-213
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  • 2012
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  • 1738-1266(pISSN)
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  • 2234-1862(eISSN)
한국농업기계학회 (Korean Society for Agricultural Machinery)
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Disposable Nitrate-Selective Optical Sensor Based on Fluorescent Dye

  • Kim, Gi-Young (National Academy of Agricultural Science) ;
  • Sudduth, Kenneth A. (USDA-ARS Cropping Systems and Water Quality Research Unit) ;
  • Grant, Sheila A. (Biological Engineering,University of Missouri) ;
  • Kitchen, Newell R. (USDA-ARS Cropping Systems and Water Quality Research Unit)
  • 투고 : 2012.06.23
  • 심사 : 2012.06.29
  • 발행 : 2012.06.30
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초록

Purpose: This study was performed to develop a simple, disposable thin-film optical nitrate sensor. Methods: The sensor was fabricated by applying a nitrate-selective polymer membrane on the surface of a thin polyester film. The membrane was composed of polyvinylchloride (PVC), plasticizer, fluorescent dye, and nitrate-selective ionophore. Fluorescence intensity of the sensor increased on contact with a nitrate solution. The fluorescence response of the optical nitrate sensor was measured with a commercial fluorospectrometer. Results: The optical sensor exhibited linear response over four concentration decades. Conclusions: Nitrate ion concentrations in plant nutrient solutions can be determined by direct optical measurements without any conditioning before measurements.

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참고문헌

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피인용 문헌

  1. Development of an Agricultural Data Middleware to Integrate Multiple Sensor Networks for an Farm Environment Monitoring System vol.38, pp.1, 2013, https://doi.org/10.5307/JBE.2013.38.1.025
  2. Biosensors Used for Quantification of Nitrates in Plants vol.2016, 2016, https://doi.org/10.1155/2016/1630695