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Allahabad University Studies. Vol. IX-Part II (Science Section)
1933
of the soil were taken out after the eposure was completed and the ammonia was estimated by adding potassium hydroxide to the soil and distilling the liberated ammonia which was absorbed by a standard soltion of sulphuric acid. [...] The oxidation of ammonium phophate in presence of sunlight is practically the same in the sterilised as well as in the unsterilised soils. [...] Hence it appears to us that in the soil the ammonification of nitrognous compounds and the subsequent oxidation of ammonium salts to nitrites are markedly accelerated by light and the process of soil nitrification is more of photochemical than of bacterial origin. [...] The presence of the alkaloid was definitely established by the colour reactions of the usual alkaloidal reagents with the acidified solution of the alcoholic extract of the plant. [...] But the quantity of the precipitate and the intensity of colours indicated the presence of the alkaloid in very small quantity.
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Allahabad University Studies. Vol. IX-Part II (Science Section).
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Retrieved from https://southasiacommons.net/artifacts/2343201/allahabad-university-studies/3159200/ on 28 Mar 2024. CID: 20.500.12592/g2cj14.