Nanjing Chi Shun Technology Development Co.,Ltd（CHISHUN）was founded in 2005,which is a comprehensive technical manufacturing company comprised with researching,producing,selling and serving. As one of the important Hi-tech Enterprises of Country Torch Plan,CHISHUN possessed a group of excellent technical personnel and hold a number of patents,also cooperated with local professors from NJU,NUST and HHU. Since its establishment,we focused on the research and development of sample pretreatment and soil detection and analysis technology.