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Spectral Quantitation Of Hydroponic NutrientsInstrument continuously monitors hydroponic solution by use of absorption and emission spectrometry to determine concentrations of principal nutrients, including nitrate, iron, potassium, calcium, magnesium, phosphorus, sodium, and others. Does not depend on extraction and processing of samples, use of such surrograte parameters as pH or electrical conductivity for control, or addition of analytical reagents to solution. Solution not chemically altered by analysis and can be returned to hydroponic process stream after analysis.
Document ID
19960024409
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Schlager, Kenneth J.
(Biotronics Technologies, Inc.)
Kahle, Scott J.
(Biotronics Technologies, Inc.)
Wilson, Monica A.
(Biotronics Technologies, Inc.)
Boehlen, Michelle
(Biotronics Technologies, Inc.)
Date Acquired
August 17, 2013
Publication Date
June 1, 1996
Publication Information
Publication: NASA Tech Briefs
Volume: 20
Issue: 6
ISSN: 0145-319X
Subject Category
Electronic Systems
Report/Patent Number
KSC-11682
Accession Number
96B10265
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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