Wood M J, Surette R A, Mohindra J K, Patterson J G
AECL, Chalk River Laboratories, Ontario.
Health Phys. 1998 Feb;74(2):253-8. doi: 10.1097/00004032-199802000-00012.
Passive diffusion samplers designed for measuring HTO-in-air have been evaluated for measuring 14CO2-in-air. Controlled exposures to HTO-in-air, 14CO2-in-air, and a combination of the two gases were carried out. The sampling rate of the 14CO2-in-air was found to be approximately 0.7 that of HTO-in-air. This value is consistent with the calculated relative sampling rates based on the diffusion coefficients of the gases. Passive diffusion samplers currently used for sampling HTO-in-air at CANDU facilities have been shown to be suitable for also measuring 14CO2-in-air and HTO-in-air simultaneously when prepared with the appropriate sampling solution.
为测量空气中的氚化水（HTO）而设计的被动扩散采样器已被评估用于测量空气中的14CO2。对空气中的HTO、14CO2以及这两种气体的混合物进行了受控暴露实验。发现空气中14CO2的采样率约为空气中HTO采样率的0.7。该值与基于气体扩散系数计算出的相对采样率一致。已证明，坎杜核电站设施目前用于采集空气中HTO的被动扩散采样器，在使用适当的采样溶液制备后，也适用于同时测量空气中的14CO2和HTO。
