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Methods for calibrating a fluorometer

A fluorometer and fluorescent labeling technology, which is applied in the field of fluorescence measurement sensors and fluorometers, can solve the problems of difficult fluorescence measurement and change

Active Publication Date: 2012-11-28
ECOLAB USA INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Additionally, water properties often change over time and location, making it more difficult to obtain accurate fluorescence measurements in the field

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  • Methods for calibrating a fluorometer
  • Methods for calibrating a fluorometer
  • Methods for calibrating a fluorometer

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Embodiment Construction

[0032] The following detailed description is exemplary in nature and is not intended to limit the scope, applicability, or configuration of the invention in any way. Rather, the following description provides some practical explanations for implementing the exemplary embodiments of the invention. Examples of construction, materials, dimensions and manufacturing processes are provided for selected elements and for all other elements use elements known to those skilled in the art. Those skilled in the art will appreciate that many of the noted examples have various suitable alternatives.

[0033] Embodiments of the invention generally provide a number of methods for calibrating one or more types of fluorometers. In some embodiments, it may be advantageous to calibrate the handheld fluorometer for in situ measurement of water treatment product concentration at one or more different field locations. At each site, the fluorometer can be calibrated to correct for site-specific fac...

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Abstract

Some embodiments provide methods for calibrating a fluorometer in order to account for one or more optical properties of a water sample affecting fluorescence measurements. In some cases one or more calibration solutions are prepared with sample water from a specific field site. Fluorescence measurements are taken from a water sample and one or more of the calibration solutions, and calibration parameters are determined based on the measurements. In some cases a calibration solution is prepared by spiking sample water to include a higher concentration of a fluorescent tracer and measurements are taken to characterize a calibration slope coefficient. In some cases a calibration solution is prepared by adding an acid and measurements are taken to characterize background fluorescence in the sample.

Description

technical field [0001] Embodiments of the present invention generally relate to fluorometric sensors and fluorometers for determining and monitoring the concentration of one or more substances in a liquid sample, and more particularly relate to the calibration of such fluorometric sensors and fluorometers. Background technique [0002] In cleaning and antimicrobial operations, commercial users (eg, restaurants, hotels, food and beverage factories, grocery stores, etc.) rely on the concentration of the cleaning or antimicrobial product in order for the product to work effectively. Failure of an effectively working cleaning or antimicrobial product (due to concentration issues) can lead to commercial users feeling that the product is of low quality. Ultimately, consumers will also feel that business users provide inferior service. In addition, commercial users may be investigated and / or sanctioned by government surveillance and health authorities. Therefore, there is a need ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/64
CPCG01N21/274G01N2201/0221G01N21/278G01N21/645
Inventor E·托克图夫C·J·欧文S·K·特里吉斯泰德A·菲利普晨柯
Owner ECOLAB USA INC