C_(60)的研究是近一时期极为热门的课题。为了对C_(60)进行深入的研究,必须对实验室大量制取的笼形结构的fullerene混合物进行提纯和分离,而检验样品的纯度和组分的一个重要依据就是质谱分析。对样品进行质谱分析可以有多种方法,其中一种比较简便的方法就是使用激光对淀积在基板上的样品进行脱附,并直接对脱附时产生的离子进行质谱分析。为了真实反映样品的成分,必须防止在脱附电离时发生解离,一般都使用光子能量较高的紫外激光进行脱附,这样,对激光的要求较高。我们尝试使用可见的 C_ (60) research is a very hot topic in recent period. In order to further research on C_ (60), the fullerene mixture in cage-like structure prepared in laboratory must be purified and separated. An important basis for testing the purity and composition of the sample is mass spectrometry. There are many ways to perform mass spectrometry on a sample. One of the easier ways is to use a laser to desorb a sample deposited on a substrate and perform mass spectrometry on the ions generated during desorption. In order to truly reflect the composition of the sample, it is necessary to prevent dissociation during desorption ionization. Generally, UV laser with high photon energy is used to desorb ultraviolet light, so the requirement for the laser is high. We try to use visible