An improved procedure for determining oxygen content in high-Tccopper oxides
β Scribed by W. M. Chen; C. C. Lam; L. Y. Li; J. F. Geng; F. M. Wu; K. C. Hung; X. Jin
- Publisher
- Springer
- Year
- 1996
- Tongue
- English
- Weight
- 417 KB
- Volume
- 9
- Category
- Article
- ISSN
- 0896-1107
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
The acetyl bromide procedure for spectrophotometrically determining lignin in wood and wood pulp samples has been modified by adding perchloric acid to the digestion medium. This enables faster dissolution of the materials and the use of coarser samples. Subsequent treatment of the digestion mixture
A modified fluorometric method for the determination of thiamine in food is describcd. The procedure is simple, reproducible, does not demand costly outfit and chemicals and is not susceptible to interference. The recovery of added thiamine is good.
A known amount of lithium or calcium nitrate solution is added to the sample powder which is then heated in air or oxygen. The oxygen in test samples of UO,+,, SrO.,UO.,O,+, and SrO.,UO.,O,+, was determined with an estimated standard deviation of +\_ 0.002.