Konzentrierung von L�sungen unterschiedlicher Zusammensetzung durch alleinige Gegenstromdiffusion und Gegenstromosmose als m�glicher Mechanismus der Harnkonzentrierung

Autor:	H. Röskenbleck, W. Niesel
Rok vydání:	1965
Předmět:	Chromatography Physiology Countercurrent exchange Diffusion Sodium Clinical Biochemistry Inorganic chemistry chemistry.chemical_element Osmosis chemistry.chemical_compound Membrane chemistry Physiology (medical) Urea Tonicity Semipermeable membrane
Zdroj:	Pfl�gers Archiv f�r die Gesamte Physiologie des Menschen und der Tiere. 283:230-241
ISSN:	1432-2013 0031-6768
DOI:	10.1007/bf00412942
Popis:	Countercurrent concentration mechanisms are described, which produce hypertonic solutions simply by diffusion and osmosis out of two solutions of different composition, e.g. out of a NaCl and a urea solution. The mechanisms are based either on countercurrent diffusion or on a combination of countercurrent diffusion and countercurrent osmosis. It is necessary that the currents in all concentration mechanisms be separated by membranes, which are selectively permeable or impermeable for water, sodium chloride or urea. It is shown, that urea is possibly concentrated by one of these mechanisms.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1d26d8011776e75dd9db15acfaec2b49 https://doi.org/10.1007/bf00412942 Zobrazit plný text záznamu Full text from SpringerLink