Colorint el r ic 9) I dhotls Tlie colorinietric incthods were iiost csnniincd. The insoluble compound, Cu(C5H5N),(CNS),,B precipitated in Spncu's rcnction is soluble in cliloroforni to give n green solution suitnble for colorinietric deterniinntion. Experiments shoired tlint the precipitnte did not
Rapid, simple colorimetric method for the determination of micro quantities of gibberellic acid
โ Scribed by Horace D. Graham; Linnie B. Thomas
- Publisher
- John Wiley and Sons
- Year
- 1961
- Tongue
- English
- Weight
- 489 KB
- Volume
- 50
- Category
- Article
- ISSN
- 0022-3549
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
## Abstract A rapid and accurate method for determination of nicotine in a large number of plant or dust samples is described. Nicotine is extracted with light petroleum from an alkaline suspension of finely powdered material. The petroleum is then shaken with dilute hydrochloric acid and the aqueo
However, there were significant correlations between the enthalpy involved and each of VAG maximum viscosity, breakdown, viscosity at 50 ยฐC and set back (r = 0.53, P < 0.05; r = 0.49, P < 0.05; r = 0.62, P < 0.05; r = 0.65, P < 0.01, respectively). For RVA data, correlations were found only between