<div dir="ltr">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).<div>
<br></div><div>I would love to hear what others have to offer, though.</div><div><br></div><div>Kirsten</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Tue, Feb 25, 2014 at 9:21 AM, Lena Hernandez <span dir="ltr"><<a href="mailto:LHernandez@themosh.org" target="_blank">LHernandez@themosh.org</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div lang="EN-US" link="blue" vlink="purple"><div><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal">Hi all, <u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal">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.<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal">Lena Hernandez<u></u><u></u></p><p class="MsoNormal">Collections Manager/Registrar<u></u><u></u></p><p class="MsoNormal">
<u></u> <u></u></p><p class="MsoNormal">Museum of Science and History<u></u><u></u></p><p class="MsoNormal">1025 Museum Circle<u></u><u></u></p><p class="MsoNormal">Jacksonville, FL 32207<u></u><u></u></p><p class="MsoNormal">
<a href="tel:%28904%29396-6674%20x212" value="+19043966674" target="_blank">(904)396-6674 x212</a><u></u><u></u></p><p class="MsoNormal"><a href="mailto:lhernandez@themosh.org" target="_blank">lhernandez@themosh.org</a><u></u><u></u></p>
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<br></blockquote></div><br><br clear="all"><div><br></div>-- <br><font face="'times new roman', serif" style="background-color:rgb(255,255,255)" color="#006600">Kirsten E. Nicholson, Ph.D<br><br><i><font size="1">Assoc. Prof. Biology and Curator of Natural History<br>
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