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进行油源对比的传统手段是有机地球化学方法,该方法现已发展到了分子级的研究水平,并取得了大量的研究成果。有机岩石学家很少涉及油源对比领域,Brooks试图用三维同步荧光技术解决油源问题,但由于普通荧光光谱分辨率低,其应用效果不甚理想。近年来,有机岩石学家开拓的激光诱导荧光方法在研究液态烃类方面取得了良好的效果,我们所倡导并建立的激光诱导荧光法对比油源是有机地球化学方法研究油源关系的一个重要的补充形式。激光诱导荧光法由于采用激光作光源、并可由Boxcar积分器来确定荧光峰位的寿命值,从而比一般普通光源(如汞灯)作激发光源所采集的信息更多、更广,也更能反映样品成分的特征。该方法的实质是将原子核外层电子的运动状况用宏观的荧光光谱和具体的荧光寿命值表达出来,使其微观上的复杂性简化为宏观上和数值上人们可以普遍接受的形式。
The traditional means of oil source correlation is organic geochemical method. The method has now developed at the molecular level and has achieved a great deal of research results. Organic rock experts seldom deal with the field of oil source contrast. Brooks tried to solve the problem of oil source by using three-dimensional synchronous fluorescence technique. However, due to the low resolution of ordinary fluorescence spectrum, its application effect is not very satisfactory. In recent years, the laser-induced fluorescence method pioneered by organic petrologists has achieved good results in the study of liquid hydrocarbons. The laser-induced fluorescence method that we advocate and established is an important way to study the relationship between oil sources by organic geochemical methods The supplement form. Laser Induced Fluorescence Because of the use of a laser as the light source and the Boxcar integrator to determine the lifetime of the fluorescence peak, the information acquired by the excitation light source of a more conventional light source such as a mercury lamp is more, Reflect the characteristics of the sample ingredients. The essence of the method is to express the movement of nuclei in the outer layer of the nucleus with the macroscopic fluorescence spectrum and the specific fluorescence lifetime to simplify the microscopic complexity to a macroscopically and numerically acceptable form.