cover image: Allahabad University Studies. Vol. IX-Part II (Science Section)

Premium

20.500.12592/g2cj14

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.
technology medicine science
Published in
Unset
Segment Pages Author Actions
Frontmatter
i-iii The Vice Chancellor and the Head of the Departments view
Section I Chemistry
i-36 unknown view
Section II Physics
37-56 unknown view
Section III Mathematics
57-64 unknown view
Section IV Botany
65-82 unknown view
Section V Zoology
83-iii unknown view

Related Topics

All