scholarly journals Uranium isotope separation by chemical exchange reactions between UF$sub 6$ and NOUF$sub 6$ in a two-phase liquid system

1972 ◽  
Author(s):  
R. Nugent
1971 ◽  
Vol 25 ◽  
pp. 3543-3544
Author(s):  
Lars-Ingvar Staffansson ◽  
D. G. Nicholson ◽  
Bjarne Kimland ◽  
Curt R. Enzell ◽  
R. J. J. C. Lousberg ◽  
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1994 ◽  
Vol 0 (7) ◽  
pp. 801-802 ◽  
Author(s):  
Mathias Brust ◽  
Merryl Walker ◽  
Donald Bethell ◽  
David J. Schiffrin ◽  
Robin Whyman

2006 ◽  
Vol 12 (4) ◽  
pp. 241-245 ◽  
Author(s):  
Nada Nikolic ◽  
Mihajlo Stankovic ◽  
Milorad Cakic

A comparison of the results of the acid and enzymatic hydrolysis of GA from potato haulm and tuber sprouts is presented in this paper. Different systems were used for acid hydrolysis: monophase liquid, two-phase liquid-liquid or solid-liquid and three-phase solid-liquid-liquid systems. Enzymatic hydrolysis was carried out by enzymes present in fresh haulm and fresh tuber sprouts and the fresh juice obtained from fresh plant material. The procedure of acid hydrolysis of GA from potato sprouts in a two-phase liquid-liquid system was selected as the optimal procedure for obtaining solanidine. The liquid-liquid system was composed of GA extract with hydrochloric acid as the first liquid phase and chloroform as the second liquid phase. A degree of GA hydrolysis of 96% and a solanidine yield of 1.50 g per 100 g of dried tuber sprouts after 90 minutes were then achieved.


1968 ◽  
Vol 108 (2) ◽  
pp. 225-231 ◽  
Author(s):  
Peter F. Wilde ◽  
Patrick S. Stewart

The yeast Pityrosporum ovale, a skin saprophyte, will only grow if fatty acids of chain length greater than C10 are added to the culture medium. 9-Hydroxypalmitic acid is the major product of metabolism of even-carbon-number fatty acids; 9-hydroxystearic acid is also found. The optimum pH for this conversion is pH4·5. The hydroxy fatty acids produced are found bound in a polar form in the aqueous phase of the culture medium. Growth of the organisms is facilitated by presentation of the substrate as a two-phase liquid system.


2010 ◽  
Vol 64 (1) ◽  
pp. 45-48 ◽  
Author(s):  
Nafiseh Dadgostar ◽  
Sultana Ferdous ◽  
Dale Henneke

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