| 我国部分地区食品氚的分布规律初探 |
| |
| 引用本文： | 朱国英,王伟华.我国部分地区食品氚的分布规律初探[J].核技术,1996,19(7):445-448. |
| |
| 作者姓名： | 朱国英 王伟华 |
| |
| 作者单位： | 上海市放射医学研究所 |
| |
| 摘 要： | 调查了我国北京、兰州、上海和成都四个城市的食品氚浓度，其中食品的游离水氚（ＴＦＷＴ）和有机结合氚（ＯＢＴ）浓度的平均值分别为４．５６Ｂｑ·Ｌ＾－１和２９．５１Ｂｑ·Ｌ＾－１，食品ＯＢＴ与ＴＦＷＴ含量的比值（ＳＡＲ）为６．４７。食品ＯＢＴ浓度由北往南逐渐下降（Ｐ〈０．０５），与纬度呈高度线性关系。植物类食品的ＯＢＴ浓度较动物类食品高，且地面生长食品的ＯＢＴ浓度最高，灌溉类食品最低。
|
| 关 键 词： | 氚 食品 游离水氚 有机结合氚 纬度 中国 |
A study on tritium distribution in various food from some districts of China |
| |
| Zhu Guoying, Wang Weihua, Chen Bingru.A study on tritium distribution in various food from some districts of China[J].Nuclear Techniques,1996,19(7):445-448. |
| |
| Authors: | Zhu Guoying Wang Weihua Chen Bingru |
| |
| Abstract: | Measurements have been made of tissue free water tritium(TFWT) and organically bound tritium(OBT) in food samples from Beijing, Lanzhou, Shanghai and Chengdu districts. The average TFWT and OBT concentration is 4.56Bq/L and 29.51Bq/L, respectively. And the SAR,the ratio of OBT to TFWT, is 6.47. The OBT concentration in food is found to be decreasing with latitude of the district.And the relation of the OBT concentrations with latitudes can be described by a linear equation. It is also found that the OBT concentrations in plant are significantly higher than that in animal food. |
| |
| Keywords: | Tritium Food Tissue free water tritium Organically bound tritium Latitude |
| 本文献已被 CNKI 维普 等数据库收录！ |
