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高灵敏度的Electron Impact( EI)电子轰击离子源是JK-GCMS-II的标准配置，可获得经典的EI谱图。? 高集成度的整体优化设计使仪器体积和重量得以降低，主机尺寸:28×50×40cm（宽×深×高），主机重量:20kg                                Standard EI ion source with high sensitivity assures mass spectral integrity and more reliable library matches. ? Integrated design packs GC/MS system with dimensions as 28×50×40cm(W×D×H) , and only weight 20kg ( excluding rotary vane vacuum pump and PC).