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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Hi Matthew,<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 don’t know if you ever got an answer to the question below. I would say that much depends on whether you talk of large or small shells. Ideally, if you have
shells that are clean of soft parts and are only immersed in clean alcohol diluted with demineralized or distilled water you could dry them directly. The problem is of course the possibility of additives in the alcohol that you need to get rid of. If we are
mainly talking about formalin and/or sea salt (the latter relevant for marine mollusks only of course), small shells of 1 cm or less need just a couple of ½-1 hour dips in demineralized water before dryíng.<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">The larger and especially the more porous they are, the more you will need to rinse them. It is a simple question of sound judgment, and I cannot supply a table
or similar. A larger shell overgrown with bryozoans and worm tubes and perhaps infested with boring Porifera may require a couple of days with regular changes of water, and you may even have to reconsider if it should be dried at all. In general, however,
drying is a good idea, because alcohol get acidic over time, taking up CO2 from the air.<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">Cheers<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">Tom<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"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:DA">Tom Schiøtte</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:DA"><o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:DA"> </span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:DA"><o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:DA">Collection manager, Echinodermata & Mollusca</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:DA"><o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:DA">Natural History Museum of Denmark (Zoology)</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:DA"><o:p></o:p></span></p>
<p class="MsoNormal"><b><span lang="DA" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:DA">Universitetsparken 15</span></b><span lang="DA" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:DA"><o:p></o:p></span></p>
<p class="MsoNormal"><b><span lang="DA" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:DA">DK 2100 Copenhagen OE</span></b><span lang="DA" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:DA"><o:p></o:p></span></p>
<p class="MsoNormal"><b><span lang="DA" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:DA"> </span></b><span lang="DA" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:DA"><o:p></o:p></span></p>
<p class="MsoNormal"><b><span lang="DA" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:DA">+45 35 32 10 48</span></b><span lang="DA" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:DA"><o:p></o:p></span></p>
<p class="MsoNormal"><b><span lang="DA" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:DA"><a href="mailto:TSchioette@snm.ku.dk">TSchioette@snm.ku.dk</a></span></b><span lang="DA" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="DA" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="DA" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="DA" 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:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Nhcoll-l <nhcoll-l-bounces@mailman.yale.edu>
<b>On Behalf Of </b>Matthew Pruden<br>
<b>Sent:</b> 15. marts 2023 18:56<br>
<b>To:</b> nhcoll-l@mailman.yale.edu<br>
<b>Subject:</b> [Nhcoll-l] Procedures for Transferring Specimens from Ethanol to Dry Storage<o:p></o:p></span></p>
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<span style="font-size:9.0pt;font-family:"Segoe UI",sans-serif;color:#212121">You don't often get email from
<a href="mailto:mjp368@cornell.edu">mjp368@cornell.edu</a>. <a href="https://aka.ms/LearnAboutSenderIdentification">
Learn why this is important</a><o:p></o:p></span></p>
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<p class="MsoNormal">Hello, <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">My name is Matthew Pruden; I am a PhD candidate at Cornell University. I have a series of samples containing mollusc shell remains (empty bivalve and gastropod shells), which are currently stored in 90% ethanol (and formalin before that),
and I want to transfer them to dry storage.<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 was wondering if anyone had recommendations on how to properly prepare the shells for dry storage. I.e., Should the shells be soaked in deionized water after rinsing off the ethanol? And if so, for how long? Should the shells undergo
multiple soakings to fully remove the ethanol and any potential formalin left over?<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 apologise if a similar question has been asked before, this is my first time asking a question on this forum, and first time preparing ethanol samples. Thanks in advance for your help, and feel free to contact me if you have any questions.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Cheers,<o:p></o:p></p>
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<p class="MsoNormal">Matthew<br clear="all">
<o:p></o:p></p>
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<p class="MsoNormal" style="background:white"><span style="font-family:"Arial",sans-serif;color:#888888">-- </span><span style="font-family:"Arial",sans-serif;color:#222222"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-family:"Arial",sans-serif;color:#888888">Matthew Pruden
<o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#888888">PhD Candidate</span><span style="font-family:"Arial",sans-serif;color:#888888"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#888888">Dept. Earth and Atmospheric Sciences</span><span style="font-family:"Arial",sans-serif;color:#888888"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#888888">Cornell University</span><span style="font-family:"Arial",sans-serif;color:#222222"><o:p></o:p></span></p>
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<p class="MsoNormal" style="background:#F2F2F2"><span style="font-size:13.5pt;font-family:"Helvetica",sans-serif;color:#222222"><a href="https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.researchgate.net%2Fprofile%2FMatthew_Pruden&data=05%7C01%7CTSchioette%40snm.ku.dk%7C70c6fcc14b8441fa9d0208db257f1790%7Ca3927f91cda14696af898c9f1ceffa91%7C0%7C0%7C638145000020059834%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=SlRECUhcLI0ISD%2FBPNNzgiw4VjMCztvryvUYI8QI6rE%3D&reserved=0" target="_blank"><span style="font-size:7.5pt">ResearchGate</span></a><o:p></o:p></span></p>
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