RE: Silver Nitrate for Margins -Reply

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From:"Weems, Joyce" <>
Date:Mon, 16 Aug 1999 11:05:38 -0400
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It "sets" the ink to make it stay on better. (At least that's what I tell
myself - :>)
Joyce Weems
Pathology Manager
Saint Joseph's Hospital of Atlanta

	-----Original Message-----
	Sent:	Monday, August 16, 1999 3:50 AM
	Subject:	Re: Silver Nitrate for Margins -Reply

	You can dry the Indian ink by touching with tissue/blotting paper; 
	you do not have to leave the specimen sitting around to dry!

	Let me re-phrase my question "What does acetic acod/vinegar/Bouin's 
	fluid do?

	Any of you ever spoken to an "ink scientist"?  You would be VERY 
	surprised how much there is to know about inks (Indian ink is a 
	subject on its own)

	In the past, we have been interested in the particle size of Indian 
	ink.  Those guys not only know (and make inks of different particle 
	size), they also vary the liquid in which the particles are 
	suspended, so that the suspensoid has different characteristics, 
	including drying time, spread, density, etc.  They are useful
	in forensics also.  We needed to assess the size of gaps between 
	adjacent biological/non-biological structures and used variously 
	sized Indian inks to do so.  We sill do when looking at dental 

	So back to my question - why vinegar, etc on inked margins?  OK, I 
	know why, but what is the rationale?  Is it fixing the suspensoid 
	phase of the ink?  Is the suspensoid necessarily a protein?

	Still puzzled in Wales
	Russ Allison, Wales

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