From: "Casparian, Armen" <caspariana**At_Symbol_Here**WIT.EDU>
Subject: Re: [DCHAS-L] Lab Safety Discussion List
Date: July 1, 2012 11:53:42 AM EDT
Reply-To: DCHAS-L <DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU>
Message-ID: <SNT123-DS40B401C1434FF4DDF8B28BFE50**At_Symbol_Here**phx.gbl>

Thank you, Richard Swanson.  Will give it a try.


Armen Casparian


From: DCHAS-L Discussion List [mailto:dchas-l**At_Symbol_Here**MED.CORNELL.EDU]On Behalf Of Richard Swanson
Sent: Friday, June 29, 2012 1:22 PM
Subject: Re: [DCHAS-L] Lab Safety Discussion List


I don't know if you have yet considered the ceric ammonium nitrate test for alcohols?  An alcohol of 6 carbons or less will oxidize to its corresponding carboxylic acid while cerium(IV) reduces to cerium(III) producing its characteristic red color.  This test works especially well for water soluble alcohols.


Richard Swanson



From: DCHAS-L Discussion List[mailto:dchas-l**At_Symbol_Here**MED.CORNELL.EDU]On Behalf Of 8524828hau**At_Symbol_Here**COMCAST.NET
Sent: Friday, June 29, 2012 8:19 AM
Subject: Re: [DCHAS-L] Lab Safety Discussion List


See describing an assay that relies on the oxidation of methanol bypermanganate.


David Haugen


From:"Todd Perkins" <p3wt3r**At_Symbol_Here**CHARTER.NET>
Sent: Thursday, June 28, 2012 8:55:12 PM
Subject: Re: [DCHAS-L] Lab Safety Discussion List

I suggest researching the JAOAC for methodology and build a gravimetric calibration curve and determine limit of detection.  It might not have anything helpful but there's also "inorganic spot tests" by Fiegl & Anger. 


Just some ideas.


Todd Perkins

Sent from my iPhone

On Jun 28, 2012, at 6:23 PM, "Casparian, Armen" <caspariana**At_Symbol_Here**WIT.EDU> wrote:

Hi Jim,


Do you or anyone else in the discussion group know of a simple  wet, chemical qualitative method for detecting the presence of methanol in an aqueous solution?  The exact concentration is not necessary but a relative/comparative concentration would be nice.  In particular, I would like to monitor the methanol concentration as aspartame decomposes over time in soft drinks, suitable for an undergraduate laboratory experiment.  I suppose FDA must have protocol for this, but their method may involve the use of a GC-FID.





From: DCHAS-L Discussion List [mailto:dchas-l**At_Symbol_Here**MED.CORNELL.EDU]On Behalf Of JAKSAFETY**At_Symbol_Here**AOL.COM
Sent: Thursday, June 28, 2012 4:57 PM
Subject: [DCHAS-L] Lab Safety Discussion List


LABSAFETY-L is the internet discussion list of the Laboratory Safety Institute (LSI).  It provides an open forum for the discussion lab safety questions,concerns, and ideas.  Information about subscribing can be found at


As moderator of the list, I can assist anyone who has questions or would like assistance subscribing.


Regards, ... Jim


James A. Kaufman, Ph.D.
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