Development and Examination of Sampling Device for Total Tritium Measurement in Plant

A device was constructed in this paper to collect total tritium in plant. The device can deal with 10.00-15.00g fresh plants in 2-3h by combination of the traditional way of high-temperature oxidation and the way of combustion. Comparing this device with the traditional high-temperature oxidation method and foreign similar devices，processing time of this method is shorter and also can deal with greater sample size. The results show that the collected water can be directly measured by liquid scintillation.