Handheld fluorometer and method of use

US8269193B2 · kind B2 · utility

Assignee

• ECOLAB USA INC. · US

Inventors

• William M. Christensen · Hibbing, US
• Eugene Tokhtuev · Duluth, US
• Brian Philip Carlson · Lakeville, US
• Paul R. Kraus · Apple Valley, US
• Benedict F. Pesigan · Apple Valley, US
• Jill Marie Klegin · Cannon Falls, US
• Adrian E. Hartz · Woodbury, US
• Michael Kremer · Shakopee, US

Key dates

• Filing date: Mar 31, 2010
• Grant date: Sep 18, 2012
• Expiry date: Jul 25, 2030

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2201/0221
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Embodiments provide a handheld fluorometer and method of determining a concentration of a product within a sample. In some cases the handheld fluorometer includes an immersible sensor head that measures a fluorescence of the product and a controller that calculates the concentration of product. In some cases the handheld fluorometer includes a handheld controller module, an immersible sensor head connected to the controller module, a sample cup for containing a water sample, and a fastener that removably fastens the sample cup about the immersible sensor head. In some cases the sensor head is angled with respect to the controller module and the fluorometer provides a substantially stable base. The sample cup can be removed to acquire a sample of water containing the product and then refastened about the sensor head for determining the concentration.