Re: Tritium Smear Analysis

[Wes Van Pelt <WesVanPelt@att.net>]

"Lavera, Ron" wrote:

> We are contemplating using a liquid scintillation counter for analysis of
> tritium activity collected via paper smears/wipes of surfaces.
>
> Does anyone out there have calibration and basis documents for setting up
> the LSC for this type of analysis ?
>
> We were contemplating digesting the smear in an acid solution and performing
> the analysis on an aliquat of this solution.  Is this an appropriate
> analysis method ?
>

Ron and All,

Just put the filter paper swipe in the liquid scintillation vial, add liquid
scintillant and shake. Adding about .5 to 1 ml of water to the paper is often
used to help solubilize any material.  The acid will screw up the analysis much
more than the paper will.

Wes
--
Wesley R. Van Pelt, Ph.D. CIH, CHP
Wesley R. Van Pelt Associates, Inc.
Radiation Safety and Environmental Radioactivity
mailto:wesvanpelt@att.net


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