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The determination of nitrates in plant materials

Published online by Cambridge University Press:  27 March 2009

Gerald T. Pyne
Gerald T. Pyne
Affiliation:
University College, Cork.
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Extract

1. The Valmari-Devarda method of estimating nitrates (i.e. distillation with magnesium oxide and Devarda's alloy) is unsatisfactory in presence of organic matter. Attempts to make it quantitative under these conditions by modifications of alkali and temperature proved unsuccessful.

2. Two new methods for the estimation of nitrate in plant juices are described. The first depends on the use of Devarda's alloy in cold weakly alkaline solutions, the second on the reducing power of titanous hydroxide, under conditions suitable for use with plant products.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 17 , Issue 2 , April 1927 , pp. 153 - 161
Copyright
Copyright © Cambridge University Press 1927

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References

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