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Subject: Re: 2 RE: [DCHAS-L] Paraformaldehyde - carcinogen or not?
Date: Mon, 7 Dec 2009 09:46:13 +0100
Author: Allan Astrup Jensen 		Next by Date:
Subject: Re: Paraformaldehyde - carcinogen or not?
Date: Mon, 7 Dec 2009 09:59:52 EST
Author: ACTSNYC**At_Symbol_Here**CS.COM


Date: Mon, 7 Dec 2009 08:24:19 -0500
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From: List Moderator <ecgrants**At_Symbol_Here**UVM.EDU>
Subject: Re: Paraformaldehyde - carcinogen or not?

From: "Allan Astrup Jensen" <aaj**At_Symbol_Here**force.dk>
Date: December 7, 2009 4:11:51 AM EST
Subject: RE: [DCHAS-L] 2 RE: [DCHAS-L] Paraformaldehyde - carcinogen or not?


Dear Monona,
Protection is fine but substitution of very dangerous chemicals is better! I cannot understand e.g. why n-hexane is still one of the most used solvents in standardized analytical methods for lipophilic chemicals, when we know the danger of peripheral neuropathy. It is easy to substitute. It is the only alkane with that particular effect.
And that is only one example; there are many others, including with carcinogens. Why are chemists so conservative, careless or ignorant??? Years ago I was member of a CEN WG supposed to solve the problem of substituting dangerous reagents in analytical standard methods - but it showed up impossible!
Yours truly,

Allan Astrup Jensen 

Technical Vice President 
Secretariat for Quality Management and Metrology 

FORCE Technology, Br=F8ndby 
Park All=E9 345 
2605 Br=F8ndby 
Denmark 

Phone: +45 43 26 70 00 
Direct: +45 43 26 70 81 
Mobile: +45 40 94 10 22 
Fax: +45 43 26 70 11 
e-mail: aaj**At_Symbol_Here**force.dk
www: www.forcetechnology.com

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