Waters company is the world's largest professional manufacturer of liquid chromatography, mass spectrometry and related products, with the most powerful research institutions and the world's largest column production plant, is the only professional manufacturer simultaneously producing liquid chromatography instruments, chemicals and data processing system three major liquid chromatography elements. The company fully understands the user's needs, long-term commitment to the development of liquid chromatography and mass spectrometry technology, more than 40 years in the field of liquid chromatography has made brilliant achievements. Waters was one of the first companies in the United States to be certified by ISO9000, as well as the first analytical instrument company to be certified by FDA.