Nature, Količina 452Sir Norman Lockyer Macmillan Journals Limited, 2008 |
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Zadetki 1–3 od 76
Stran 76
... concentration above the critical concentration for chain entanglements . When water is almost fully removed , a gel is formed . Neutralization in a sodium hydroxide solution and subsequent wash- ings in water yield a physical hydrogel ...
... concentration above the critical concentration for chain entanglements . When water is almost fully removed , a gel is formed . Neutralization in a sodium hydroxide solution and subsequent wash- ings in water yield a physical hydrogel ...
Stran 78
... concentration in the alcohol gel , and the concentration and the nature of the neutralizing agent . Chitosan membrane formation occurred with NaOH ( pKa = 14 ) , ethanola- mine ( pK1 = 9.51 ) or ethylamine ( pK1 = 10.81 ) in specific ...
... concentration in the alcohol gel , and the concentration and the nature of the neutralizing agent . Chitosan membrane formation occurred with NaOH ( pKa = 14 ) , ethanola- mine ( pK1 = 9.51 ) or ethylamine ( pK1 = 10.81 ) in specific ...
Stran 203
... concentration stimulates uptake in these streams . Total uptake velocity of NO3 ( v , analogous to the average downward velocity at which NO , ions are removed from water , and a measure of uptake efficiency relative to availability12 ) ...
... concentration stimulates uptake in these streams . Total uptake velocity of NO3 ( v , analogous to the average downward velocity at which NO , ions are removed from water , and a measure of uptake efficiency relative to availability12 ) ...
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