Date: Thu, 19 Mar 2009 07:32:40 -0400
Reply-To: "Crooks, Steven" <scrooks**At_Symbol_Here**RTI.ORG>
Sender: DCHAS-L Discussion List <DCHAS-L**At_Symbol_Here**LIST.UVM.EDU>
From: "Crooks, Steven" <scrooks**At_Symbol_Here**RTI.ORG>
Subject: Re: Procuring Acetonitrile
Comments: To: List Moderator
In-Reply-To: A<3705B59A-AED0-4457-A01E-627C39FDEEE3**At_Symbol_Here**uvm.edu>
Sounds like potentially viable minimization and addressing a supply
issue. It also sound a lot like "treatment".... Curious to know if
operator is a TSDF and how others have grappled with the "treatment"
interpretation for those who are only LQGs.
Steve Crooks, MS, CIH, CSP
Mgr., Occupational Health & Environment
RTI International
Occupational Health and Environment
Bldg 11 203B
3040 Cornwallis Road POB 12194
Research Triangle Park, NC 27709-2194
TEL 919.316.3910
FAX 919.541.1222
=A0
-----Original Message-----
From: DCHAS-L Discussion List [mailto:DCHAS-L**At_Symbol_Here**list.uvm.edu] On Behalf Of
List Moderator
Sent: Wednesday, March 18, 2009 11:00 AM
To: DCHAS-L**At_Symbol_Here**LIST.UVM.EDU
Subject: Re: [DCHAS-L] Procuring Acetonitrile
From: Carolyn Sampson
Date: March 18, 2009 10:41:27 AM EDT (CA)
Subject: RE: [DCHAS-L] Procuring Acetonitrile
We started capturing our waste and distilling it several years ago as
a cost savings so we have inadvertently protected ourselves at least a
little. We use a simple benchtop still (located in a hood). You need
to account for the water content. (84% acetonitrile, 16% water)
Also, depending on your sensitivity needs, you can simply re-use the
waste. That causes a baseline shift, of course, but you can sometimes
deal with that for a short while.
Good luck!
Carolyn
Carolyn J. Sampson, Ph.D.
Environmental Manager & Chemical Hygiene Officer
Division of Innovation, Technology and Quality
General Mills, Inc.
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