地理研究

地理研究 ›› 1983, Vol. 2 ›› Issue (2): 82-87.doi: 10.11821/yj1983020009

• 研究报告 • 上一篇    下一篇

14C测定年代报告(一)

中国科学院地理研究所14C实验室   

  1. 中国科学院地理研究所14C实验室
  • 收稿日期:1982-09-14 修回日期:1983-01-25 出版日期:1983-06-15 发布日期:1983-06-15

DETERMINATION OF THE 14C DATING OF THE SAMPLES BY USING Li2C2 METHOD

The 14C Laboratory, Institute of Geography   

  1. The 14C Laboratory, Institute of Geography
  • Received:1982-09-14 Revised:1983-01-25 Online:1983-06-15 Published:1983-06-15

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摘要： 本文介绍了应用碳化理(Li2C2)法进行化学制样测定14C年代获得成功的试验.抑制鋰的升华作用是成功的关键.文中提出了改革鋰反应器冷却装置的根据和方案.试验结果是令人满意的.从CO2到C2H2的转化中碳的收率高达98%(而StC2法为70%左右).本文发表了40个14C年代数据,其中4个进行了互校对比,一致性很好.

Abstract: This paper introduces the successful experiments to determine the 14C dating of the samples by using the chemical treatment of lithium carbide(Li2C2). The key of the success lies in the restraining of the sublimation of lithium^ The authors suggest the principle and programme of innovating the cooling equipment of lithium reactor in this paper.The results were satisfactory.By using this method the ratio of transformation from CO2 to C2H2 could reach as high as 98 percent, while by using SrC2 method, the ratio is 70 percent.40 14C dating data are published here.Among them four data were compared or rectified with the data measured by other laboratories.They all showed very good coincidence.