最近,我们利用电子顺磁共振(EPR)技术检测了200多颗湖南砂矿金刚石中的孤氮,对其中的50多颗计算了孤氮的浓度。这是目前国内使用EPR对天然金刚石中孤氮进行系统测量的第一批数据。本文试图对孤氮浓度的EPR测定方法和EPR测氮在金刚石研究中的意义作初步讨论,以期望EPR在我国金刚石的找矿、科研和新技术应用等方面得到广泛的作用。 Recently, we used the electron paramagnetic resonance (EPR) technique to examine the nitrogen of more than 200 diamonds in Hunan sands and calculated the concentration of the isolated nitrogen of more than 50 of them. This is the first batch of data using the EPR to systematically survey the natural nitrogen in the natural diamond. In this paper, we attempt to discuss the significance of the EPR measurement method of nitrogen concentration and the nitrogen measurement of EPR in diamond research. We hope EPR can be widely used in prospecting, researching and applying new technology of diamond in our country.