Zobrazeno 1 - 10
of 114
pro vyhledávání: '"M.J. Herak"'
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::285958bfea85dc01028334decf534ffa
https://doi.org/10.1007/bf01220115
https://doi.org/10.1007/bf01220115
Publikováno v:
Analytica Chimica Acta. 75:101-109
Complex species involved in the spectrophotometric determination of cobalt with 4-(2-pyridylazo)resorcinol (PAR = H 2 R) were studied in solution and in the solid state. An anionic [Co(III)R 2 ] - species was extracted from aqueous solution in chloro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5446e34e760ee74e04e64dd3ae099098
https://doi.org/10.1016/s0003-2670(01)81957-7
https://doi.org/10.1016/s0003-2670(01)81957-7
Publikováno v:
Journal of Inorganic and Nuclear Chemistry. 43:3357-3361
The complex species of cobalt formed with 4-(2-thiazolylazo)resorcinol (TAR = H 2 Tar) in aqueous solution at pH 6–8 can be efficiently extracted by tetraphenylarsonium- and tetraphenylphosphonium chloride in chloroform and similar chlorinated solv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::98e3360166ad44cb4fe0081e6665040e
https://doi.org/10.1016/0022-1902(81)80115-7
https://doi.org/10.1016/0022-1902(81)80115-7
Publikováno v:
Journal of Inorganic and Nuclear Chemistry. 39:2053-2056
The extraction of cerium(III) and praseodymium(III) from hydrochloric acid solution has been investigated using monooctyl α-anilinobenzylphosphonate (MOABP) and monooctyl α-(2-carboxyanilino)benzylphosphonate (MOCABP). Chloroform, benzene, carbon t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c933ff31a21ef7879a8ca37b998e3858
https://doi.org/10.1016/0022-1902(77)80545-9
https://doi.org/10.1016/0022-1902(77)80545-9
Publikováno v:
Microchemical Journal. 24:536-544
Extraction of vanadium-4-(2-thiazolylazo)resorcinol complexes by quaternary salts such as triphenylmethylarsonium iodide, tetraphenylarsonium chloride, and tetraphenylphosphonium chloride has been studied. Quantitative extraction is achieved with tet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::45d2adbae549dc48fc4dfe7836c78fa3
https://doi.org/10.1016/0026-265x(79)90102-4
https://doi.org/10.1016/0026-265x(79)90102-4
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9594982f85b0e1110bc461e59fa9f848
https://doi.org/10.1016/0026-265x(77)90022-4
https://doi.org/10.1016/0026-265x(77)90022-4
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d6a8d616979a5a22ac094b0fc710a6ea
https://doi.org/10.1016/s0003-2670(01)83038-5
https://doi.org/10.1016/s0003-2670(01)83038-5
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-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::84a9ba44d1653d02c9cb7e0547de0ca6
https://doi.org/10.1016/0026-265x(77)90081-9
https://doi.org/10.1016/0026-265x(77)90081-9
Publikováno v:
Journal of Inorganic and Nuclear Chemistry. 38:1695-1699
The extraction of iron (III) from aqueous hydrochloric acid solutions containing an excess of thiocyanate ions with monooctyl anilinobenzylphosphonate (MOABP) dissolved in chloroform or petroleum ether, was studied by radiometric and spectrophotometr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::61dd24151249a9f5ced8726faa4fac8f
https://doi.org/10.1016/0022-1902(76)80663-x
https://doi.org/10.1016/0022-1902(76)80663-x
Autor:
M.J. Herak, M. Široki
Publikováno v:
Analytica Chimica Acta. 87:193-199
A sensitive and selective spectrophotometric determination of gallium is described. It is based on extraction of gallium from 3 M hydrochloric acid solution as a chloro-complex into 1,2-dichlorobenzene and exchange of the chloro ligand with 4-(2-pyri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::65622fd30539997bf5fb34b384baa2e0
https://doi.org/10.1016/s0003-2670(01)83135-4
https://doi.org/10.1016/s0003-2670(01)83135-4