中文摘要：

简单介绍了国外Ar-Ar实验室发展和我国Ar-Ar实验室建设概况，以中国科学院广州地球化学研究所新旧两个Ar-Ar实验室作对比，分析了该所新一代Ar-Ar实验室改进之处，指出气体提取系统．纯化系统小型化和实验流程自动化是Ar-Ar实验室的必然发展趋势，并以滇西龙陵花岗岩黑云母Ar-Ar定年结果为例，展示新一代Ar-Ar实验室获得的高质量的实验数据。向广大地质科研工作者介绍新一代Ar-Ar实验室的建设概况，以期推动我国Ar-Ar实验室的实验流程自动化建设，向国际先进水平实验室迈进。

英文摘要：

A new Ar-Ar laboratory has been built up in Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, equipped with a 5400Ar mass spectrometer from the GV instruments in UK, a MIR10-50W CO2 and a UP-213 UV lasers from the New Wave Research in USA. The UV ablating laser is for the Ar-Ar laser probe with spot sizes from 4 μm to 110 μm in diameter. The CO2 laser is for the Ar-Ar laser stepwise heating on the grains of the K-rich minerals or whole rocks. As far as know, two manufacturers, the ISI Insulator Seal and the CeramTec, make the viewports transmitting CO2 laser. These viewports are very expensive. Dr Huaiyu He and I respectively tried and succeeded to make practicable CO2 laser viewports. The second viewport designed by me is shown in Fig. 2. The blank of this viewport is very low and fit for the Ar-Ar laser stepwise heating on a single grain of K-rich mineral. Using this viewport, we have finished Ar-Ar laser stepwise heating analyses of a hundred irradiated samples （biotite, muscovite, hornblende, amphibole and basalt and peridotite whole rock） and standard samples, and high quality dating results have been obtained. The Ar-Ar dating results of a biotite from the Longling granite, western Yunnan by laser stepwise heating are shown in Table 1 and Fig. 1. Dr J.R. Wijbrans from the Vrije Universiteit, Amsterdam visited our laboratory in May 8 - 16, 2005. In his short summary of the visit activities to the National Natural Science Foundation of China, he said： “After a week working in the laboratory and reviewing laboratorium procedures, I think now the new GIG-CAS Ar-Ar laboratory is a state-of-the-art facility and capable to produce top quality data sets. ”