Trace determination of metal ion inhibitors of the urea-urease system by aph-stat kinetic method

Autor:	E. Clifford Toren, F. Joseph Burger
Rok vydání:	1968
Předmět:	Urease biology Microchemistry Metal ions in aqueous solution Inorganic chemistry Hydrogen-Ion Concentration Kinetic energy Analytical Chemistry Metal Kinetics chemistry.chemical_compound Hydrolysis chemistry Metals visual_art Methods Urea visual_art.visual_art_medium biology.protein
Zdroj:	Microchimica Acta. 56:1049-1058
ISSN:	1436-5073 0026-3672
DOI:	10.1007/bf01221177
Popis:	A pH-stat, kinetic method, based on the decreased rate of the ureasecatalyzed hydrolysis of urea, was developed for the trace determination of eight metal ion inhibitors. The kinetic parameters,vM andKm for the urease system and the apparent inhibition constants,K0′, for the metal ion interactions were measured. The sensitivities of the metal ions in decreasing order ofK0′ are: Ag(I) > Hg(II) > Cu(II) > Cd(II)> > Mn(II) ∼Co(II) > Pb(II) > Ni(II).
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d78d6133b8ae3dd8d2111ee996deac97 https://doi.org/10.1007/bf01221177 Zobrazit plný text záznamu Full text from SpringerLink