[ RadSafe ] LSC Method Assistance Needed - CO2

[ROY HERREN]

Barbara,

    I suggest that you and your friend should take a look at Perkin Elmer's website, 
http://las.perkinelmer.com/content/RelatedMaterials/Brochures/BRO_ScintillationCocktailsAndConsumables.pdf 

    I've used Perkin Elmer's OptiPhase HiSafe 2 liquid scintillation cocktail fluid for this very purpose with good results.
 
    For a recently released article about this particular test see the article "Team finds link between stomach-cancer bug and cancer-promoting factor" http://www.news.illinois.edu/news/10/0106cancer.html
Roy Herren 




________________________________
From: "blreider at aol.com" <blreider at aol.com>
To: radsafe at radlab.nl
Sent: Wed, January 6, 2010 5:27:23 PM
Subject: [ RadSafe ] LSC Method Assistance Needed - CO2



One of my friends, a new HP, asked me if I could assist him in finding a better cocktail for his SC work.  He writes:  "Our breath bioassay monitors 14CO2.  So we have a solution that we make, and we bubble the air from the balloons in the solution to trap the co2 and count it on our LSC.  This has been done for a long while, but the mixture is made up of some nasty stuff, so I just want to see if we can do better." 

The method they use a toluene based cocktail:  "solution that contains toluene,sodium hyrdroxide, trimethylbenzene, and methyl glycol."
It has been a long time since I did LSC so if you have any experience and advice I am sure he will appreciate it.
Thanks in advance.
Barbara Reider, CHP 

It has been a long time since I did LSC so if you have any experience and advice I am sure he will appreciate it.
Thanks in advance.
Barbara Reider, CHP 


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