Narayan K K, Deo J V, Abani M C
Radiation Safety Systems Division, Bhabha Atomic Research Centre, Trombay, Mumbai, India.
Sci Total Environ. 2000 Jul 10;256(2-3):233-7. doi: 10.1016/s0048-9697(00)00482-4.
Tissue Free Water Tritium concentrations (TFWT) were determined in tender coconut (Cocos nucifera L.) water, ripe coconut water, and kernel milk water, and compared with the same in groundwater collected from the vicinity of the trees. Samples with a very low tritium content were enriched by the alkaline electrolysis method. All of the samples were analyzed for tritium content in an ultra-low level liquid scintillation spectrometer. The TFWT in kernel milk water was found to be approximately 20-40 times higher than that in the groundwater. The tritium concentration in descending order in these samples is: kernel milk water, ripe coconut water, tender coconut water, and groundwater. The concentration of tritium increases as the fruit grows and the significantly high concentration in the kernel milk water suggests enrichment during the growth of the fruit.
测定了嫩椰子（椰属）水、成熟椰子水和椰仁奶水中的组织游离水氚浓度（TFWT），并与从树木附近采集的地下水中的该浓度进行了比较。氚含量极低的样品通过碱性电解法进行富集。所有样品均在超低水平液体闪烁光谱仪中分析其氚含量。发现椰仁奶水中的TFWT比地下水中的高约20 - 40倍。这些样品中氚浓度从高到低依次为：椰仁奶水、成熟椰子水、嫩椰子水和地下水。随着果实生长，氚浓度增加，椰仁奶水中显著高的浓度表明在果实生长过程中发生了富集。
