Hi Janine,

Gel Laboratories offers radiochemistry analysis. https://www.gel.com/laboratories/services/radiochemistry-analysis

If you can provide more context about the request, I may be able to give additional advice. For instance, if it is for waste disposal, Ecology Services or other vendors may be able to help. Some states have a list of labs that can provide certified analysis.

Best,
Robin

^^^^^^^^^^^^^^^^^^^^
Robin M. Izzo, M.S. h ‘21
Assistant Vice President
Environmental Health and Safety
Princeton University
262 Alexander Street
Princeton, NJ 08544
609-258-6259 (office)
609-865-7156 (mobile)
Please visit the EHS website at ehs.princeton.edu <http://ehs.princeton.edu/>; and the Emergency Management website at emergency.princeton.edu <http://emergency.princeton.edu/>;

she/her/hers

On 12/19/22, 11:07 AM, "ACS Division of Chemical Health and Safety on behalf of CHAS membership" <DCHAS-L**At_Symbol_Here**Princeton.EDU on behalf of membership**At_Symbol_Here**DCHAS.ORG> wrote:

From: Janine Rhodes <janine**At_Symbol_Here**taylortechnologies.com>
Digest topic: Radioactivity testing

My laboratory uses a dilute aqueous solution of Thorium nitrate in one of its processes. Thorium nitrate is considered weakly radioactive. A request has been made for us to obtain information regarding the specific radioactivity of the solution. Does anyone know of a laboratory that will perform certified radioactivity testing? We have been unable to find a laboratory to help us!

Thank you for any help you can provide!

Janine

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