System for the production of laboratory grade ultrapure water

US6579445B2 · kind B2 · utility

Assignee

• Sartorius AG · DE

Inventors

• Charles T. Nachtman · Dubuque, US
• William P. Johll, Jr. · Dubuque, US
• Helmut R. H. Gideon · Dubuque, US
• Timothy T. Dunwoody · Dubuque, US
• Jamie Carr · Dubuque, US
• Thomas Scholz · Bear, US

Key dates

• Filing date: Jun 1, 2001
• Grant date: Jun 17, 2003
• Expiry date: Jun 13, 2021

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S210/90
• WIPO field: Environmental technology
• WIPO sector: Chemistry

Abstract

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.