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'Aqueous Solution' in keywords Facet   section ZfN Section C  [X]
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1994 (1)
1979 (1)
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1Author    D. Girlich, H.-D Lüdemann, C. Buttersack, K. BuchholzRequires cookie*
 Title    c , T-Dependence of the Self Diffusion in Concentrated Aqueous Sucrose Solutions  
 Abstract    The self diffusion coefficients D of the water molecules and of sucrose have been deter­ mined by the pulsed field gradient NMR technique over a wide range of temperatures and concentrations (cmax: 70% w/w sue.). All temperature dependencies can be fitted to a Vogel-Tammann-Fulcher equation. The isothermic concentration dependence of D for the sucrose is given by a simple exponential concentration dependence. 
  Reference    Z. Naturforsch. 49c, 258—264 (1994); received December 21993 
  Published    1994 
  Keywords    Diffusion, Sucrose, Water, Aqueous Solution 
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 TEI-XML for    default:Reihe_C/49/ZNC-1994-49c-0258.pdf 
 Identifier    ZNC-1994-49c-0258 
 Volume    49 
2Author    J. Iř, Ina Kopoldová, M. Ilan, V. Oráček-HübschRequires cookie*
 Title    Gamma-Radiolysis of Aqueous Solution of Proline  
 Abstract    Gamma-radiolysis of 0.05 M aqueous neutral proline solution was investigated. As the main reaction of proline radiolysis in oxygenated solutions, the hydroxylation reactions leading to hydroxyproline formation and the reactions leading to the total destruction of the pyrrolidine ring were shown. In oxygen-free solutions the yield of these reactions decreased; in this medium combination reactions giving rise to higher molecular weight combination products (up to approx. 1500) belong to the most important ones. In addition to radiation-decarboxylation reactions the products of radiation-carboxylation reactions were also detected in the irradiated solution of proline free of oxygen. 
  Reference    (Z. Naturforsch. 30c, 474—477 [1975]; received November 1 5 1974/February 261975) 
  Published    1975 
  Keywords    Gamma-Radiolysis, Aqueous Solution, Proline, Radiation 
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 TEI-XML for    default:Reihe_C/30/ZNC-1975-30c-0474.pdf 
 Identifier    ZNC-1975-30c-0474 
 Volume    30 
3Author    JiřinaK. OpoldováRequires cookie*
 Title    Radiation Aggregates of Insulin  
 Abstract    During the irradiation of aqueous solution of insulin (pH 1.8) the decrease o f original insulin molecules and the formation of radiation aggregates o f insulin was studied in dependence on the concentration of irradiation solution, on the doses and conditions o f irradiation (oxygenated and oxygen-free atmosphere, the presence of ?-butanol, addition o f [14C] amino acids). From the results obtained and results published earlier it may be assumed that in irradiated solution on insulin new covalent bonds between insulin molecules are formed at tyrosyl, phenylalanyl and cystyl radi­ cals; these radicals are formed by the action of both direct and indirect effect (at present pH 1.8 mainly of H atoms). 
  Reference    Z. Naturforsch. 34c, 1139—1143 (1979); received January 22/M ay 4 1979 
  Published    1979 
  Keywords    G am m a-Irradiation, Insulin, Aqueous Solution, R adiation Aggregates 
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 TEI-XML for    default:Reihe_C/34/ZNC-1979-34c-1139.pdf 
 Identifier    ZNC-1979-34c-1139 
 Volume    34 
4Author    J. Iř, Ina Kopoldová, ŠtĕpánH. RnčiřRequires cookie*
 Title    Gamma-Radiolysis of Aqueous Solution of Histidine  
 Abstract    The dependence of Gi(— M) values of histidine on the concentration of irradiated 10-4 —10-1 m solutions, pH and the presence of 0 2 , N20 and sec-butyl alcohol was investigated. In oxygen-free medium the maximum radiation sensitivity of histidine was found at pH 5 — 8 ; in oxygenated solutions it was shifted to the 6 — 11 pH range. The formation of radiation products was also studied. The course of radiation decomposition of histidine depends on the presence of oxygen and on the pH of irradiated solution. 
  Reference    (Z. Naturforsch. 32c, 482 [1977]; received January 28/April 19 1977) 
  Published    1977 
  Keywords    Gamma-Radiolysis, Histidine, Aqueous Solution, pH and Concentration Dependence, Radiation Products 
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 TEI-XML for    default:Reihe_C/32/ZNC-1977-32c-0482.pdf 
 Identifier    ZNC-1977-32c-0482 
 Volume    32