Date: Mon, 21 Dec 2009 16:32:44 -0500
Reply-To: DCHAS-L Discussion List <DCHAS-L**At_Symbol_Here**LIST.UVM.EDU>
Sender: DCHAS-L Discussion List <DCHAS-L**At_Symbol_Here**LIST.UVM.EDU>
From: "House, Katherine C." <HouseKC**At_Symbol_Here**CORMETECH.COM>
Subject: Re: Consolidating historic sample collections
In-Reply-To: <A997AA317050344CA69EA201A733C06319101D**At_Symbol_Here**>

I have to agree with Kristi.  I did the same thing in grad school and had great success with it.  The Teflon-l ined caps worked well with a lot of the solvents I used.  And there was another kind I used (it might have also been Teflon) that worked really well with DMSO.  I think we used the VWR brand and the boxes were easy to categorize and you could stac k 2-3 in a regular lab drawer.



Katherine C. House, CCHO

Laboratory Coordinator< /p>

Chemical Hygiene Officer

Cormetech, Inc.

5000 International Drive

Durham, NC 27712

919.620.3044 (office)

919.815.2024 (mobile)

-----Original Message-----
DCHAS-L Discussion List [mailto:DCHAS-L**At_Symbol_Here**] On Behalf Of Kristi Ohr
Sent: Monday, December 21, 2 009 12:54 PM
To: DCHAS-L**At_Symbol_Here**LIST.UVM.EDU
Subject: Re: [DCHAS-L] Consolidating historic sample collections


I suggest using glass scintillation vials.  These are cheap, come in a variety of sizes and come in boxes that are amenable to cataloging and stor age.  I used them for all of my synthetic samples in graduate school.  My Chemglass representative recently told me that they now have varieties with teflon lined lids.  You can rotovap samples in these as well using a septum and a needle, so you don't need to store items in round bottom flasks.  The 24/40 septa fit nicely over the end of the vial, with the other end fitting into a 14/20 male-end bump bulb.  Insert a needle be fore hooking in up, and boom, you can rotovap samples directly in the vial.


From: DCHAS-L Discussion List on b ehalf of Ralph Stuart
Sent: Mon 12/21/2009 12:22 P M
To: DCHAS-L**At_Symbol_Here**LIST.UVM.EDU
Subject: [DCHAS-L] Consolida ting historic sample collections

We have chemistry faculty members who have histo ric collections of materials they have developed themselves that are at the bot tom of the round bottom flasks. These collections take up a lot of space and ar e hard to manage in accordance with good practice. During a discussion of thi s concern, the question arose whether what the best practices are for collect ing and cataloging these materials into easily identified and managed collectio ns. For example, are there well plates or other systems in place that are appropriate for collecting large numbers of small quantities of materials?< br>
I said that the wisdom of DCHAS-L might have some information about this an d that I would forward the question to the collective intelligence. Any good experiences or ideas out there?

Thanks for any information.

- Ralph

Ralph Stuart, CIH
Environmental Safety Manager
University of Vermont
Environmental Safety Facility
667 Spear St. Burlington, VT  05405


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