地理研究

地理研究 ›› 1985, Vol. 4 ›› Issue (1): 79-84.doi: 10.11821/yj1985010009

• 研究报告 • 上一篇    下一篇

沉淀法采集天然水中14C样品的试验研究

叶祥清, 陈铁成, 冷达明, 金力   

  1. 中国科学院地理研究所14C实验室
  • 收稿日期:1984-05-08 修回日期:1984-08-02 出版日期:1985-03-15 发布日期:1985-03-15

AN EXPERIMENTAL STUDY ON COLLECTING 14C SAMPLES IN NATURAL WATER BY PRECIPITATION METHOD

Ye Xiangqing, Chen Tiecheng, Leng Daming, Jin Li   

  1. Laboratory of 14C, Institute of Geogrpahy, Acaemia Sinica
  • Received:1984-05-08 Revised:1984-08-02 Online:1985-03-15 Published:1985-03-15

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摘要： 本文叙述了沉淀法采集天然水中14C样品的方法。

Abstract: The method of collecting 14C samples in natural water by precipitating was dealt with in this paper. Through experiment the best conditions for precipitating were determined. They are the pH Value of 12 and by adding precipitants two times as much as the equal equivalent, the rate of separating out of inorganic carbon in this work is 99%, and the recovery rate is 97%. The authors suggest that SrCl2 should be replaced as precipitants by CaCl2, then the cost of collecting samples could be reduced.