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S_tC₂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.

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.