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In order to characterise the metal loading of the metal-titania catalysts, we must dissolve the catalysts first, the general procedures are:
weight 0.1g metal-titania catalyst3.0g(NH4)2SO4¡¢6mL 98% concentrated sulfuric acid to a beaker, cover it with a piece of watch-glass, then heat the slurry for over20 mins with a electric  furnace untill it becomes a transparent solution!
And the strong acidity would affect the ICP results, I suggest that the solution should be diluted to a proportion of 0.01 aqueous solutions.

[ Last edited by zhuyinhua on 2007-6-30 at 07:01 ]
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protein1

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ÈñîÑ¿óÓÃHF,ÔÚ J. Phys. Chem. BÓÐÕâ·½ÃæµÄÃèÊö,¾ßÌåµÄ¾íÆÚÍüÁË.
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