Inventors:
William M. Christensen - Hibbing MN, US
Eugene Tokhtuev - Duluth MN, US
Brian Philip Carlson - Lakeville MN, US
Paul R. Kraus - Apple Valley MN, US
Benedict F. Pesigan - Apple Valley MN, US
Jill Marie Klegin - Cannon Falls MN, US
Adrian Eugene Hartz - Woodbury MN, US
Michael Patrick Kremer - Rosemount MN, US
Assignee:
Ecolab USA Inc. - St. Paul MN
International Classification:
G01N 21/64
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.