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Pre-analysis
Sample Prep
Filtered water samples should be in screw-capped plastic bottles
and acidified by adding 1% of the sample volume of concentrated
nitric acid. This will prevent adsorption of isotopes to the bottle
wall. Samples not acidified before submission will be delayed a
day after acidification by the lab. If samples are to be submitted
with visible sediment, do not acidify.
Preliminary
Drinking Water Scan
Follow-up Analysis for Specific Radionuclides
Specific Radionuclides by Liquid Scintillation
Natural Decay Chain Determinations by Gamma Spectrometry
After
Pre-concentration
Miscellaneous Radionuclides by Direct Gamma Spectrometry
Radon in Water
Preliminary
Drinking Water Scan
as per the Ontario Drinking Water Guidelines
When warranted
by Preliminary Scan, follow up with analysis for specific radionuclides.
Follow-up
Analysis for Specific Radionuclides
After sample digestion and chemical separation
Note:
all radioisotopes from Table 3 (page 9) of the Ontario
Drinking Water Standards can be provided.
Call 1-877-726-3080 for details.
Specific
Radionuclides
by Liquid Scintillation
Natural
Decay Chain Determinations
by Gamma Spectrometry after Pre-concentration
This technique can measure the radionuclides directly on a bulk sample
and the detection limits will vary with the time of counting, the
size and matrix of the sample.
Miscellaneous
Radionuclides
by Direct Gamma Spectrometry
Radon
in Water
by
Direct Gamma Spectrometry
Note that this determination is time-sensitive and requires a special
bottle for sampling.
Please contact us for details.
*Bq/L
denotes becquerels per litre. One becquerel is equal to 27 picocuries.
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