Qingdao Puren Instrument Co., Ltd. is a high-tech joint-stock enterprise specialized in the R & D, production, sales and technical services of ion chromatograph and related accessories certified by ISO-9001. It participated in the drafting and formulation of the measurement and verification regulation of ion chromatograph of the people's Republic of China jjg832-2014, and is a member of the analytical instrument branch of China Instrument Society...