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Subject: [DCHAS-L] silica gel
Date: June 28, 2012 8:28:01 PM EDT
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Subject: [DCHAS-L] Chemical Safety headlines from Google (15 articles)
Date: June 29, 2012 6:21:06 AM EDT
Author: "Secretary, ACS Division of Chemical Health and Safety"

From: Todd Perkins <p3wt3r**At_Symbol_Here**CHARTER.NET>
Subject: Re: [DCHAS-L] Lab Safety Discussion List
Date: June 28, 2012 9:55:12 PM EDT
Reply-To: DCHAS-L <DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU>
Message-ID: <34A942B15A329D46820651CB2BA02CAD449722A4**At_Symbol_Here**EXMBX2.wit.private>


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.

 

Thanks,

Armen

 

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
To: DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU
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 http://www.labsafetyinstitute.org/Resources.html. 

 

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

 

Regards, ... Jim

 

James A. Kaufman, Ph.D.
Chair, ICASE Committee on Safety in Science Education
International Council for Associations of Science Education
www.icaseonline.net

President/CEO
The Laboratory Safety Institute (LSI)
A Nonprofit International Organization for
Safety in Science and Science Education

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508-647-1900 Fax: 508-647-0062 Skype: labsafe
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