Zobrazeno 1 - 10
of 77
pro vyhledávání: '"J. Cífka"'
Autor:
J. Buriánek, J. Cífka
Publikováno v:
Journal of Labelled Compounds. 4:107-118
The radiation energy absorbed in solutions of phosphorus-32, iodine-125 and -131, mercury-197 and -203 was calculated and tabulated for various time of storage. The influence of geometrical shape of solutions was also evaluated. An experimental verif
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::212b6b9b4548de80daa6a0ed916dbea6
https://doi.org/10.1002/jlcr.2590040203
https://doi.org/10.1002/jlcr.2590040203
Publikováno v:
Collection of Czechoslovak Chemical Communications. 23:71-77
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf9f8bc127385e6aaeb1eaa734ee857f
https://doi.org/10.1135/cccc19580071
https://doi.org/10.1135/cccc19580071
Publikováno v:
Collection of Czechoslovak Chemical Communications. 21:349-355
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a2ff0ab11a6c8eca9d84c860e0de117a
https://doi.org/10.1135/cccc19560349
https://doi.org/10.1135/cccc19560349
Autor:
J. Cífka, J. Buriánek
Publikováno v:
Journal of Labelled Compounds. 6:224-239
The chromatographic behaviour of chlormerodrin and its radiochemical impurities was studied in various solvents. The main product of thermal decomposition of chlormerodrin was identified as 3-chloromercuri-2-hydroxypropylurea. The thermal decompositi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::61d690350f1e0ec070e7c38c2d043a60
https://doi.org/10.1002/jlcr.2590060303
https://doi.org/10.1002/jlcr.2590060303
Publikováno v:
Journal of Labelled Compounds. 1:189-194
The order of the exchange reaction between potassium ethyl xanthate and elemental sulphur was determined. A mixture of ethanol and toluene was used as the solvent for the routine preparation of 35S-labelled ethyl, n-butyl, n-hexyl and n-octyl xanthat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc90b5a042fe1e62bb7945f9357a0a9e
https://doi.org/10.1002/jlcr.2590010305
https://doi.org/10.1002/jlcr.2590010305
Autor:
V. Bračoková, J. Cífka
Publikováno v:
Journal of Inorganic and Nuclear Chemistry. 28:2483-2490
The influence of the conditions of irradiation on the distribution of 32P and 35S atoms amongst their different valency states has been studied. Prolongation of the irradiation decreased the 32P and 35S activity in the hypophosphite and sulphide frac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::236d8ac90c618e56d45c1b8cd4514974
https://doi.org/10.1016/0022-1902(66)80370-6
https://doi.org/10.1016/0022-1902(66)80370-6
Autor:
V. Bračoková, J. Cífka
Publikováno v:
Journal of Inorganic and Nuclear Chemistry. 32:365-368
The distribution of 32 P and 35 S atoms amongst their different valency states has been studied as a function of increasing percentage of added potassium hydroxide in potassium chloride. The content of the various reduced species either changes very
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::05dcc3bca4a67a74024f36f1a5bcb5d7
https://doi.org/10.1016/0022-1902(70)80242-1
https://doi.org/10.1016/0022-1902(70)80242-1
Autor:
J. Cífka
Publikováno v:
Journal of Inorganic and Nuclear Chemistry. 26:683-691
The distribution of 32 P atoms, resulting from neutron irradiation of potassium chloride has been studied. A higher percentage of 32 P atoms of lower valence has been found in crystals doped with Ca 2+ or Cd 2+ ions. An oxidation occurs during the th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eea640ffdc8132278be505aba48503d3
https://doi.org/10.1016/0022-1902(64)80310-9
https://doi.org/10.1016/0022-1902(64)80310-9
Autor:
J. Cífka, J. Buriánek
Publikováno v:
Fresenius' Zeitschrift für analytische Chemie. 213:1-9
Die Bestimmung kleiner Mengen radiochemischer Verunreinigungen in Orthophosphat-32P kann mit Hilfe der Dunnschichtchromatographie erfolgen. Die AbhAngigkeit der Rf-Werte vom Wassergehalt des Flie\mittels, der SchichtstArke, der TrAgermenge und der En
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5576ab01bcbe361d2f81cb2093377e01
https://doi.org/10.1007/bf00516104
https://doi.org/10.1007/bf00516104
Autor:
J. Cífka, A. Habersbergerová-Jeníčková
Publikováno v:
Collection of Czechoslovak Chemical Communications. 24:3777-3782
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab5573fd13557d79ec917f150ad2db07
https://doi.org/10.1135/cccc19593777
https://doi.org/10.1135/cccc19593777