A method for the determination of the relative availability of nitrogen in nitrogenous fertilizers
โ Scribed by J. Hubert Hamence
- Publisher
- John Wiley and Sons
- Year
- 1950
- Tongue
- English
- Weight
- 710 KB
- Volume
- 1
- Category
- Article
- ISSN
- 0022-5142
No coin nor oath required. For personal study only.
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A novel method has been developed for the photometric determination of nitrogen oxides (NO,; NO and NO, gases). The sample .gas is shaken with an NaOH-alkaline H20, solution in a container so that all the NO, is converted to the NO; form. After decomposition of the H,O, by heating, the colour is dev
The following factors involved in the use of the Nessler reagent for the determination of nitrogen are discussed in a paper by Miller and Miller (1): (1) effect of time and completeness of digestion, (2) effect of addition of hydrogen peroxide and the optimum use thereof, (3) rate of addition of rea