초록 ▼

There is disclosed a system capable of purifying water to a laboratory grade level that uses redox media, high energy catalytic activated carbon, ultraviolet radiation and high purity ion exchange media in series filtration. The system produces purified water having a specific resistance of at least

There is disclosed a system capable of purifying water to a laboratory grade level that uses redox media, high energy catalytic activated carbon, ultraviolet radiation and high purity ion exchange media in series filtration. The system produces purified water having a specific resistance of at least 18.2 megohm·cm at 25° C. with low organic carbon content. The system is designed to be fabricated on a sufficiently small scale to fit on a lab bench top.

대표청구항 ▼

There is disclosed a system capable of purifying water to a laboratory grade level that uses redox media, high energy catalytic activated carbon, ultraviolet radiation and high purity ion exchange media in series filtration. The system produces purified water having a specific resistance of at least

There is disclosed a system capable of purifying water to a laboratory grade level that uses redox media, high energy catalytic activated carbon, ultraviolet radiation and high purity ion exchange media in series filtration. The system produces purified water having a specific resistance of at least 18.2 megohm·cm at 25° C. with low organic carbon content. The system is designed to be fabricated on a sufficiently small scale to fit on a lab bench top. with a diozonium salt to form a diazopyridone compound. Copending application U.S. Ser. No. 10/185,828, filed concurrently herewith, entitled "Method for Making Dimeric Azo Pyridone Colorants," with the named inventors Rina Carlini, James D. Mayo, James M. Duff, Jeffery H. Banning, Paul F. Smith, George Liebermann, and Roger E. Gaynor, the disclosure of which is totally incorporated herein by reference, discloses a process for preparing a diazopyridone compound which comprises (a) preparing a first solution comprising (1) either (A) a dianiline of the or (B) an aniline