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<p class="MsoPlainText">Dear Sidsel,<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">I would always recommend to wear (nitrile) gloves when touching preserved specimens.
<o:p></o:p></p>
<p class="MsoPlainText">DMDMH is a formaldehyde releasing agent which is more effective as a preservative than as a fixative, due to the very low amount of free formaldehyde. In Europe, it is regarded to be safe for use in personal care and cosmetic products
(shampoo, hand soaps, lotions) when the level is less than 0.6%. As a specimen preservative, a concentration between 2.5 and 5 % should be more than sufficient.<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Kind regards,<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Dries<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:8.0pt;font-family:"Verdana","sans-serif";color:black;mso-fareast-language:EN-GB">Andries J. van Dam,
</span><span lang="EN-US" style="font-size:8.0pt;font-family:"Verdana","sans-serif";color:#FF8000;mso-fareast-language:EN-GB">conservator</span><span lang="EN-US" style="font-size:8.0pt;font-family:"Verdana","sans-serif";color:black;mso-fareast-language:EN-GB"><br>
<br>
Museum of Anatomy<br>
Leiden University Medical Center <br>
Building 3 (V3-32)<br>
P.O.Box 9600 <br>
2300 RC Leiden <br>
The Netherlands <br>
tel: +31 (0)71 52 68356<br>
E-mail: </span><u><span lang="EN-US" style="font-size:8.0pt;font-family:"Verdana","sans-serif";color:#0000FE;mso-fareast-language:EN-GB"><a href="mailto:A.J.van_Dam@lumc.nl"><span style="color:blue">A.J.van_Dam@lumc.nl</span></a><br>
</span></u><span lang="EN-US" style="font-size:8.0pt;font-family:"Verdana","sans-serif";color:black;mso-fareast-language:EN-GB">Visiting address: Hippocratespad 21 </span><span lang="EN-US" style="color:black;mso-fareast-language:EN-GB">
</span><span style="font-size:12.0pt;font-family:"Times New Roman","serif";color:black;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span lang="EN-US" style="font-size:8.0pt;font-family:"Verdana","sans-serif";color:#FF8000;mso-fareast-language:EN-GB">Scientific associate</span><span lang="EN-US" style="font-size:8.0pt;font-family:"Verdana","sans-serif";color:black;mso-fareast-language:EN-GB">
Natural History Museum London<br>
<a href="http://www.nhm.ac.uk/" target="_blank"><span style="color:blue">http://www.nhm.ac.uk</span></a></span><span style="color:black;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:8.0pt;font-family:"Verdana","sans-serif";color:#FF8000;mso-fareast-language:EN-GB">Directory Board member</span><span lang="EN-US" style="font-size:8.0pt;font-family:"Verdana","sans-serif";color:black;mso-fareast-language:EN-GB">
ICOM-CC<br>
<u><a href="http://www.icom-cc.org/" target="_blank" title="http://www.icom-cc.org/"><span style="color:blue">http://www.icom-cc.org</span></a>
<br>
<br>
</u></span><span lang="EN-US" style="font-size:8.0pt;font-family:"Verdana","sans-serif";color:#FF8000;mso-fareast-language:EN-GB">Director</span><span lang="EN-US" style="font-size:8.0pt;font-family:"Verdana","sans-serif";color:black;mso-fareast-language:EN-GB">
Alcomon Company<br>
<u><a href="http://www.alcomon.com/" target="_blank" title="http://www.alcomon.com/"><span style="color:blue">http://www.alcomon.com</span></a></u></span><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black;mso-fareast-language:EN-GB">
</span><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black;mso-fareast-language:EN-GB"><o:p></o:p></span></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText"><span lang="EN-US" style="mso-fareast-language:EN-GB">-----Original Message-----<br>
From: nhcoll-l-bounces@mailman.yale.edu [mailto:nhcoll-l-bounces@mailman.yale.edu] On Behalf Of Sidsel Marie Willemann<br>
Sent: dinsdag 25 februari 2014 12:50<br>
To: nhcoll-l@mailman.yale.edu<br>
Subject: [Nhcoll-l] Experience with (which concentration of) DMDM Hydantoin for fixation?</span></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Dear all,<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">For preparing specimens (amphibians and like) for the school service at the museum I work at, I need to use DMDM Hydantoin as a fixative instead of Formaldehyde as one usually does. This is due to health regulations (the children are
to touch the specimens).. Does any of you have experience with using DMDM Hydantoin? - what concentration to make? Afterwards the specimens will be preserved in Steedmans PFP solution..<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Best regards,<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Sidsel Willemann<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Natural History Museum of Denmark <o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">_______________________________________________<o:p></o:p></p>
<p class="MsoPlainText">Nhcoll-l mailing list<o:p></o:p></p>
<p class="MsoPlainText"><a href="mailto:Nhcoll-l@mailman.yale.edu"><span style="color:windowtext;text-decoration:none">Nhcoll-l@mailman.yale.edu</span></a><o:p></o:p></p>
<p class="MsoPlainText"><a href="http://mailman.yale.edu/mailman/listinfo/nhcoll-l"><span style="color:windowtext;text-decoration:none">http://mailman.yale.edu/mailman/listinfo/nhcoll-l</span></a><o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">_______________________________________________<o:p></o:p></p>
<p class="MsoPlainText">NHCOLL-L is brought to you by the Society for the Preservation of Natural History Collections (SPNHC), an international society whose mission is to improve the preservation, conservation and management of natural history collections
to ensure their continuing value to society. See <a href="http://www.spnhc.org">
<span style="color:windowtext;text-decoration:none">http://www.spnhc.org</span></a> for membership information.<o:p></o:p></p>
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