[Nhcoll-l] Arsenic testing

[SIMON MOORE]

Thanks Patricia,
 
Interesting, as from my experience it was administered as a soap and rubbed into the skin prior to 'stitching back'.  The resulting powder that is hed from the skin, is very finely-divided and has a soapy feel to it.
 
Best, Simon (Moore)
 

________________________________
 From: "Gegick, Patricia, DCA" <patricia.gegick at state.nm.us>
To: Kirsten Nicholson <norops at gmail.com>; Lena Hernandez <LHernandez at themosh.org> 
Cc: "nhcoll-l at mailman.yale.edu" <nhcoll-l at mailman.yale.edu> 
Sent: Wednesday, 26 February 2014, 5:41
Subject: Re: [Nhcoll-l] Arsenic testing
  


 
Dear listees, 
It is my understanding that the arsenic was in a paste form applied to the inside skin of the animal.  It is tiny crystals of this that can migrate to the surface when dry.  If the “cotton swabbing” method is being used, it seems that it depends on whether or not you happen to capture a crystal on your swab.  I’ve always been slightly skeptical myself as far as whether my “negatives” are valid.  Anyone else have this problem? 
Patti 
  
Patricia J. Gegick 
Bioscience Collections Specialist
Department of Collections and Research 
New Mexico Museum of Natural History & Science 
1801 Mountain Road, NW 
Albuquerque, NM  87104-1375 
Phone:  505.841.2867  Fax: 505.841.2808 
email:  patricia.gegick at state.nm.us 
“Every calculation based on experience elsewhere fails in New Mexico.”Lew Wallace, New Mexico Territorial Governor from 1878-1881.New Mexico: The Land of Enchantment 
  
  
From:nhcoll-l-bounces at mailman.yale.edu [mailto:nhcoll-l-bounces at mailman.yale.edu] On Behalf Of Kirsten Nicholson
Sent: Tuesday, February 25, 2014 10:55 AM
To: Lena Hernandez
Cc: nhcoll-l at mailman.yale.edu
Subject: Re: [Nhcoll-l] Arsenic testing 
  
So we have done some fairly extensive testing in our collection and had the same results. Generally this happened where arsenic prepared specimens were in contact with "clean" specimens" and from the literature I am understand that there can be cross contamination. So if possible, you want to quarantine your arsenic specimens away from clean specimens if possible (there are a number of ways to accomplish this). 
   
I would love to hear what others have to offer, though.  
   
Kirsten   
  
On Tue, Feb 25, 2014 at 9:21 AM, Lena Hernandez <LHernandez at themosh.org> wrote: 
  
Hi all,  
  
Recently I attempted testing for arsenic in the mounted specimens of our collection. My issues, that I hope some of you can help with, is that I am getting a negative result on specimens that I am sure have arsenic. Has anyone else run into this problem? If so how did you solve it? I am following the protocol developed by NPS in their Conserve-o-Gram 2/3 and using Hach’s arsenic test kit, since the one recommended by NPS is no longer made. Any suggestions would be most welcome. Feel free to contact me off list if you would prefer. 
  
  
Lena Hernandez 
Collections Manager/Registrar 
  
Museum of Science and History 
1025 Museum Circle 
Jacksonville, FL 32207 
(904)396-6674 x212 
lhernandez at themosh.org 
    

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-- 
Kirsten E. Nicholson, Ph.D

Assoc. Prof. Biology          and       Curator of Natural History
Dept. of Biology                             Museum of Cultural and Natural History
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NHCOLL-L is brought to you by the Society for the Preservation of
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natural history collections to ensure their continuing value to
society. See http://www.spnhc.org/ for membership information.
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