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News Release Tritium Collector Quantifies Each Form of
Tritium The new Discriminating Tritium Collector, Model OS1700, from ORTEC® uses a two-stage collection process - one for oxides of
tritium and one for elemental tritium and tritiated carbon compounds. The OS1700 is a
standalone room-air and environmental sampler; with options, it can be a stack sampler.
Because of different release limits for the two forms of tritium due to
different metabolization in biological organisms, a two-stage collector is required. Most
bubblers or collectors have a single stage that collects only tritium oxides. The OS1700,
with its built-in palladium-catalyzed oxidization oven, oxidizes gaseous tritium and also
cracks and oxidizes tritiated carbon compounds, thus enabling collection of those chemical
forms in the second stage. Samples are counted in the user's liquid scintillation counter
to measure activity at tritium-in-air concentration levels as low as ~0.37 Bq/m3 (10-11 mCi/ml).
The OS1700's built-in microprocessor and mass flow meter record the total
flow, thereby allowing the user to record the averaged activity concentration of the
sample air. A 60-ml, as well as a 20-ml, sample vial is available to accommodate longer
sample times or high humidity areas. The OS1700 is provided in a bench-top enclosure,
which may be mounted in a 19-inch rack.
The OS1700 replaces ORTEC's previous tritium product, the EL700. |
