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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Depending on the time the mounts you are referencing were made, arsenic could have been applied as a paste, powder or soap.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">I have read (multiple times!) that re-testing is necessary due to negative results. Have you ever tested the same specimen using different methods? I’ve never
used the The Macherey-Nagel Arsenic Paper Test, but would like to hear other’s experiences.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Victoria<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> nhcoll-l-bounces@mailman.yale.edu [mailto:nhcoll-l-bounces@mailman.yale.edu]
<b>On Behalf Of </b>Lena Hernandez<br>
<b>Sent:</b> Tuesday, February 25, 2014 2:25 PM<br>
<b>To:</b> Gegick, Patricia, DCA<br>
<b>Cc:</b> nhcoll-l@mailman.yale.edu<br>
<b>Subject:</b> Re: [Nhcoll-l] Arsenic testing<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">I can understand the potential to miss the arsenic when swabbing, which I believe is why it is recommended to retest specimens every three years or so if you
get an initial negative result. Unfortunately, my testing issue does not seem to be so simple as that. One of the specimens I tested had quite the accumulation of arsenic below it on the base it was mounted on, but still I got a negative result.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">I appreciate all of the responses I have gotten so far, but if anyone else has thoughts please voice them!<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Lena Hernandez<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Collections Manager/Registrar<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Museum of Science and History<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">1025 Museum Circle<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Jacksonville, FL 32207<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">(904)396-6674 x212<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Gegick, Patricia, DCA [<a href="mailto:patricia.gegick@state.nm.us">mailto:patricia.gegick@state.nm.us</a>]
<br>
<b>Sent:</b> Tuesday, February 25, 2014 1:41 PM<br>
<b>To:</b> Kirsten Nicholson; Lena Hernandez<br>
<b>Cc:</b> <a href="mailto:nhcoll-l@mailman.yale.edu">nhcoll-l@mailman.yale.edu</a><br>
<b>Subject:</b> RE: [Nhcoll-l] Arsenic testing<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Century Schoolbook","serif";color:#1F497D">Dear listees,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Century Schoolbook","serif";color:#1F497D">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?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Century Schoolbook","serif";color:#1F497D">Patti<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Century Schoolbook","serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span style="font-size:9.0pt;font-family:"Century Schoolbook","serif";color:#215868">Patricia J. Gegick
<br>
Bioscience Collections Specialist<br>
Department of Collections and Research <br>
New Mexico Museum of Natural History & Science <br>
1801 Mountain Road, NW <br>
Albuquerque, NM 87104-1375 <br>
Phone: 505.841.2867 Fax: 505.841.2808 <br>
email: <a href="mailto:patricia.gegick@state.nm.us">patricia.gegick@state.nm.us</a><u>
</u><o:p></o:p></span></b></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="font-size:8.0pt;color:#215868">“Every calculation based on experience elsewhere fails in New Mexico</span><span style="color:#215868">.</span><span style="font-size:8.0pt;color:#215868">”</span><span style="color:#215868">
</span><span style="font-size:8.0pt;color:#215868">Lew Wallace, New Mexico Territorial Governor from 1878-1881.</span><span style="color:#215868">
</span><span style="font-size:8.0pt;color:#215868">New Mexico: The Land of Enchantment<o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><u><span style="font-size:9.0pt;font-family:"Century Schoolbook","serif";color:#943634"><o:p><span style="text-decoration:none"> </span></o:p></span></u></b></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Century Schoolbook","serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">
<a href="mailto:nhcoll-l-bounces@mailman.yale.edu">nhcoll-l-bounces@mailman.yale.edu</a> [<a href="mailto:nhcoll-l-bounces@mailman.yale.edu">mailto:nhcoll-l-bounces@mailman.yale.edu</a>]
<b>On Behalf Of </b>Kirsten Nicholson<br>
<b>Sent:</b> Tuesday, February 25, 2014 10:55 AM<br>
<b>To:</b> Lena Hernandez<br>
<b>Cc:</b> <a href="mailto:nhcoll-l@mailman.yale.edu">nhcoll-l@mailman.yale.edu</a><br>
<b>Subject:</b> Re: [Nhcoll-l] Arsenic testing<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">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).<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I would love to hear what others have to offer, though.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Kirsten<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><o:p> </o:p></p>
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<p class="MsoNormal">On Tue, Feb 25, 2014 at 9:21 AM, Lena Hernandez <<a href="mailto:LHernandez@themosh.org" target="_blank">LHernandez@themosh.org</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Hi all,
<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">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.<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Lena Hernandez<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Collections Manager/Registrar<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Museum of Science and History<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">1025 Museum Circle<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Jacksonville, FL 32207<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><a href="tel:%28904%29396-6674%20x212" target="_blank">(904)396-6674 x212</a><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><a href="mailto:lhernandez@themosh.org" target="_blank">lhernandez@themosh.org</a><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
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NHCOLL-L is brought to you by the Society for the Preservation of<br>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">-- <br>
<span style="color:#006600;background:white">Kirsten E. Nicholson, Ph.D<br>
<br>
</span><i><span style="font-size:7.5pt;color:#006600;background:white">Assoc. Prof. Biology and Curator of Natural History<br>
Dept. of Biology Museum of Cultural and Natural History<br>
217 Brooks Hall 103 Rowe Hall<br>
Central Michigan Univ. Central Michigan University <br>
Mt. Pleasant, MI 48859 Mt. Pleasant, MI 48859<br>
989-774-3758 989-774-3829</span></i><b><i><span style="font-size:7.5pt;color:#336666;background:black"><br>
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