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May 2009

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Subject:
fluorescent coating
From:
Patrick Van Oostveldt <[log in to unmask]>
Reply To:
Confocal Microscopy List <[log in to unmask]>
Date:
Wed, 27 May 2009 18:29:32 +0200
Content-Type:
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Dear,

We have a user visualizing sand grains, which are suspected to be  
coated with organic material. The grains are suspended in immersion  
oil and become nearly transparent.
The surface can be visualize by fluorescence excitation at 488.
The strange thing however is that heating these samples to 450 celcius  
only partially destroys the original fluorescence.
Is there a mineralogist with can provide a reasonable explanation for this?

Thanks

Patrick Van Oostveldt
-- 
Dep. Moleculaire Biotechnologie
Coupure links 653
B 9000 GENT

tel 09 264 5969
fax 09 264 6219

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