^(14)C测定年代报告(一)

DETERMINATION OF THE ~ 14C DATING OF THE SAMPLES BY USING Li_2C_2 METHOD

本文介绍了应用碳化理(Li_2C_2)法进行化学制样测定^(14)C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CO_2到C_2H_2的转化中碳的收率高达98％(而S_tC_2法为70％左右)。本文发表了40个^(14)C年代数据,其中4个进行了互校对比,一致性很好。

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.