Zobrazeno 1 - 10
of 79
pro vyhledávání: '"B. Tamhina"'
Publikováno v:
Journal of Hazardous Materials. 56:307-314
A new simple method is proposed for monitoring permeation of dibutyl sulphide through protective clothing materials. The method is based upon the reaction of sodium nitroprusside with sulphide ions in alkaline medium. It is carried out as a spot test
Autor:
A G, Ivsić, B, Tamhina
Publikováno v:
Talanta. 38(12)
The extraction of niobium(V) from aqueous hydrochloric and sulphuric acid solutions with 3-hydroxy-2-methyl-1-(4-tolyl)-4-pyridone (HY) dissolved in chloroform is described. Niobium(V) can be quantitatively extracted with HY in the form of two differ
Publikováno v:
Analytica Chimica Acta. 86:223-229
Extraction of titanium(IV) thiocyanate complexes by monooctyl-α-anilinobenzylphosphonate (MOABP) dissolved in chloroform has been investigated as a function of hydrochloric and sulfuric acid concentration. Chloroform solutions follow Beer's law and
Autor:
M.J. Herak, B. Tamhina
Publikováno v:
Microchemical Journal. 22:144-148
Spectrophotometric determination of tungsten with thiocyanate was described. Tungsten(VI) was reduced with tin(II) chloride in hydrochloric acid solution, complexed with thiocyanate ions, and the complex formed was extracted with 1-phenyl-2-methyl-3-
Publikováno v:
Mikrochimica Acta. 66:569-578
The extraction of uranium(VI) from aqueous hydrochloric or nitric acid, and extraction of protactinium from hydrochloric acid by 1-(4-Tolyl)-2-Methyl-3-Hydroxy-4-Pyridone (HY) dissolved in chloroform has been studied. At pH>4, uranium(VI) is quantita
Autor:
B. Tamhina
Publikováno v:
Microchemical Journal. 25:235-239
The spectrophotometric determination of copper(II) with thiocyanate by extraction of the tetraphenylarsonium and tetraphenylphosphonium ion-association complexes is described. The extracted complexes in chloroform have a maximum absorbance at 465 nm,
Autor:
B Tamhina, C G Ramsay
Publikováno v:
Talanta. 22:437-442
When present together in solution, chromium(III) and tartrate can interfere seriously in the titration of Co(II), Cu(II), Zn(II) and Cd(II) with EDTA. Ternary (heteronuclear) tartrate complexes containing Cr(III) and bivalent metal ion in the ratio 1
Autor:
M. J. Herak, B. Tamhina
Publikováno v:
Mikrochimica Acta. 65:553-560
Spectrophotometric determination of molybdenum with thiocyanate by extraction of the tetraphenylarsonium and tetraphenylphosphonium ion-association complexes is described. Molybdenum is reduced with ascorbic acid in hydrochloric or sulphuric acid med
Publikováno v:
Microchemical Journal. 22:275-282
The spectrophotometric determination of titanium(IV) with thiocyanate by extraction of the tetraphenylarsonium and tetraphenylphosphonium ion-association complexes is described. The extracted complexes in chloroform have a maximum absorbance at 420 n
Autor:
B. Tamhina, A. Gojmerac Ivšić
Publikováno v:
Solvent Extraction and Ion Exchange. 5:909-922