Zobrazeno 1 - 10
of 94
pro vyhledávání: '"Z. Marczenko"'
Autor:
R. Lobinski, Z. Marczenko
Publikováno v:
Pure and Applied Chemistry
Pure and Applied Chemistry, De Gruyter, 1991, 63 (11), pp.1627--1636. ⟨10.1351/pac199163111627⟩
Pure and Applied Chemistry, De Gruyter, 1991, 63 (11), pp.1627--1636. ⟨10.1351/pac199163111627⟩
The accurate determination of molybdenum in biological materials is of considerable importance because of the essential role played by this element in human metabolism. However, data on the Mo content in biological samples and especially in clinical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b0a0d01e6c224f4298eafc735e8aec76
https://hal.archives-ouvertes.fr/hal-01559737
https://hal.archives-ouvertes.fr/hal-01559737
Autor:
K. Kalinowski, Z. Marczenko
Publikováno v:
Analytica Chimica Acta. 144:173-181
A sensitive flotation—spectrophotometric method, based on the ion-associate formed by the anionic chloride and chlorostannate(II) complex of iridium with the basic dye rhodamine 6G (R6G) is described. A sparingly soluble compound precipitates when
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b2452e8a87dee231547e8fc749ed8386
https://doi.org/10.1016/s0003-2670(01)95530-8
https://doi.org/10.1016/s0003-2670(01)95530-8
Autor:
Z. Marczenko, Ł. Lenarczyk
Publikováno v:
Microchemical Journal. 34:115-120
The possibility of indirect spectrophotometric determination of fluoride based on the ternary complex of zirconium (IV) with Eriochrome Cyanine R (ECR) and cationic surfactant (cetylpyridinium ion, CP; cetyltrimethylammonium ion, CTA; tetradecyldimet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::78279def6d51cb1701c7ffa52736f5fe
https://doi.org/10.1016/0026-265x(86)90109-8
https://doi.org/10.1016/0026-265x(86)90109-8
Autor:
T. Kowalski, Z. Marczenko
Publikováno v:
Analytica Chimica Acta. 96:411-415
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::26c4d23bf932aec99fcb6ac2a540bbbb
https://doi.org/10.1016/s0003-2670(01)83680-1
https://doi.org/10.1016/s0003-2670(01)83680-1
Autor:
J. Uścińska, Z. Marczenko
Publikováno v:
Analytica Chimica Acta. 123:271-277
A sensitive flotation—spectrophotometric method, based on the ion associate formed by the anionic thiocyanate complex of osmium with the basic dye methylene blue (MB) is described. The ion associate precipitates when the aqueous solution is shaken
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::decbeb35ac49a0a4f4a51ea3ef1db7c4
https://doi.org/10.1016/s0003-2670(01)83180-9
https://doi.org/10.1016/s0003-2670(01)83180-9
Autor:
Z. Marczenko, H. Kałowska
Publikováno v:
Microchemical Journal. 27:174-181
A new sensitive spectrophotometric method for titanium determination, based on the ternary Ti-Chrome Azurol S (CAS)-cetyltrimethylammonium (CTA) system, was developed. The molar absorptivity is 7.3 × 10 4 liters mol −1 cm −1 at λ max = 565 nm.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8a3572923ab038cce5e05735dab92703
https://doi.org/10.1016/0026-265x(82)90105-9
https://doi.org/10.1016/0026-265x(82)90105-9
Autor:
Z. Marczenko, H. Kałowska
Publikováno v:
Analytica Chimica Acta. 123:279-287
Sensitive spectrophotometric methods for the determination of iron(III), based on ternary complexes with a triphenylmethane reagent, chrome azurol S (CAS) or eriochrome cyanine R (ECR), and cetyltrimethylammonium (CTA) or cetylpyridinium (CP) ions, a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ceebd9f81573d72d6a3f64ffb488710e
https://doi.org/10.1016/s0003-2670(01)83181-0
https://doi.org/10.1016/s0003-2670(01)83181-0
Autor:
Z. Marczenko, K. Kalinowski
Publikováno v:
Microchemical Journal. 39:198-203
Flotation separation of tin(II) from tin(IV) with Rhodamine 6G in hydrochloric acid medium has been described. A sparingly soluble ion-associate of tin(II) accumulates on the wall of a separatory funnel after shaking of the aqueous phase with diisopr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6a5127244d8a7c7ba5123f66f83e9722
https://doi.org/10.1016/0026-265x(89)90031-3
https://doi.org/10.1016/0026-265x(89)90031-3
Publikováno v:
Microchemical Journal. 34:121-126
A sensitive Spectrophotometric method for the determination of germanium based on its ternary complex with phenylfluorone and zephiramine was developed. The complex forms in 0.3–1.5 M HCl medium. Maximum absorbance is obtained for the molar ratio o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c39a46252defd3d128898ebb36348ef3
https://doi.org/10.1016/0026-265x(86)90110-4
https://doi.org/10.1016/0026-265x(86)90110-4
Autor:
Z. Marczenko
Publikováno v:
Mikrochimica Acta. 68:651-684
Zu den empfindlichsten, zur Spurenanalyse besonders geeigneten spektrophotometrischen Methoden gehoren extraktions- und flotationsspektrophotometrische Methoden auf der Basis von lonenassoziaten unter Mitwirkung nichtchelatierender Farbstoffe. Eine S
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b897acd5730d0a4a5889e61817407608
https://doi.org/10.1007/bf01196252
https://doi.org/10.1007/bf01196252