公开(公告)号：AU2011234000B2

公开(公告)日：2015-01-22

申请号：AU2011234000

申请日：2011-03-29

Applicant: ECOLAB USA INC

Inventor： TOKHTUEV EUGENE ,  OWEN CHRISTOPHER J ,  TRYGGESTAD SOREN K ,  PILIPCHENKO ANNA

IPC: G01N21/64

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 a background fluorescence in the sample.

公开(公告)号：CA3107545A1

公开(公告)日：2013-11-07

申请号：CA3107545

申请日：2013-04-30

Applicant: ECOLAB USA INC

Inventor： TOKHTUEV EUGENE ,  OWEN CHRISTOPHER J ,  SKIRDA ANATOLY ,  CHRISTENSEN WILLIAM M

IPC: G01N21/15 ,  G01N21/64

Abstract: An optical sensor (102) includes a sensor head (112; 304) that has an optical window (312, 314) for directing light into a flow of fluid and/or receiving optical energy from the fluid. The optical sensor (102) also includes a flow chamber (110) that includes a housing defining a cavity (356) for receiving the sensor head (112; 304). In some examples, the flow chamber (110) includes an inlet port (352) defining a flow nozzle that is configured to direct fluid entering the flow chamber (110) against the optical window (312, 314) of the sensor head (112; 304). In operation, the force of the incoming fluid impacting the optical window (312, 314) may prevent fouling materials from accumulating on the optical window (312, 314).

公开(公告)号：ZA201206130B

公开(公告)日：2013-05-29

申请号：ZA201206130

申请日：2012-08-15

Applicant: ECOLAB USA INC

Inventor： TOKHTUEV EUGENE ,  OWEN CHRISTOPHER J ,  TRYGGESTAD SOREN K ,  PILIPCHENKO ANNA

IPC: G01N20060101

公开(公告)号：AU2011234064A1

公开(公告)日：2012-08-30

申请号：AU2011234064

申请日：2011-03-28

Applicant: ECOLAB USA INC

Inventor： CHRISTENSEN WILLIAM M ,  TOKHTUEV EUGENE ,  CARLSON BRIAN PHILIP ,  KRAUS PAUL R ,  PESIGAN BENEDICT F ,  KLEGIN JILL MARIE ,  HARTZ EUGENE ADRIAN ,  KREMER MICHAEL PATRICK

IPC: G01N21/64 ,  G01N15/06

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.

公开(公告)号：AU2011234000A1

公开(公告)日：2012-08-30

申请号：AU2011234000

申请日：2011-03-29

Applicant: ECOLAB USA INC

Inventor： TOKHTUEV EUGENE ,  OWEN CHRISTOPHER J ,  TRYGGESTAD SOREN K ,  PILIPCHENKO ANNA

IPC: G01N21/64

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 a background fluorescence in the sample.

公开(公告)号：CA2789971A1

公开(公告)日：2011-10-06

申请号：CA2789971

申请日：2011-03-29

Applicant: ECOLAB USA INC

Inventor： CHRISTENSEN WILLIAM M ,  TOKHTUEV EUGENE ,  OWEN CHRISTOPHER J

IPC: G01N21/51 ,  G01N21/17

Abstract: Embodiments provide a handheld optical measuring device and method of measuring an optical property of a liquid sample. In some embodiments the optical measuring device includes a handheld controller module having an immersible sensor head and a sampling member including a sample cup and an attachment member that couples the sample cup to the handheld controller module. In some embodiments the attachment member is an elongated rigid member that is hingedly coupled to the controller module, thus providing a folding configuration for enclosing the sensor head with the sample cup during measurements, transportation, and/or storage. In some embodiments the attached sample cup provides a protective shell for the immersible sensor head during use and/or when not in use.

公开(公告)号：NZ728774A

公开(公告)日：2021-12-24

申请号：NZ72877415

申请日：2015-08-03

Applicant: ECOLAB USA INC

Inventor： TOKHTUEV EUGENE ,  SKIRDA ANATOLY ,  PILIPCHENKO ANNA ,  BOLDUC JOHN WILHELM ,  VALENSTEIN JUSTIN SCOTT ,  BAKKEN AMANDA ,  FAWBUSH STACY ,  HUTCHISON JEFFREY

IPC: G01N21/64

Abstract: A fluorometer for measuring fluorescence of a sample includes an excitation source for emitting electromagnetic radiation along a first beam path to induce fluorescence in the sample. An excitation filter transmits electromagnetic radiation from the excitation source toward the sample. An excitation filter holder supports the excitation filter and defines an aperture for passage of electromagnetic radiation from the excitation source. The aperture is positioned asymmetrically relative to the first beam path such that the aperture allows an asymmetrical portion of the electromagnetic radiation in the first beam path to pass toward the sample and the excitation filter holder blocks passage of a corresponding asymmetrical portion of the electromagnetic radiation in the first beam path. The blocked passage of the corresponding asymmetrical portion of the electromagnetic radiation in the first beam path reduces the amount of electromagnetic radiation oriented directly from the emitter module to the detector module.

公开(公告)号：AU2017312101B2

公开(公告)日：2021-11-18

申请号：AU2017312101

申请日：2017-08-17

Applicant: ECOLAB USA INC

Inventor： GODFREY MARTIN RAY ,  TOKHTUEV EUGENE ,  ERICKSON JOSEPH

IPC: G01N27/02 ,  G01N27/07 ,  G01N27/08 ,  G01N27/22

Abstract: Systems and methods can be used for correcting for the presence of voids in a fluid when measuring the conductivity thereof. The conductivity of a fluid can be measured using a conductivity sensor. Capacitance electrodes can be used to measure the capacitance of the fluid. The measured capacitance affected by the fluid can be used in combination with the measured conductivity to determine a corrected conductivity value that compensates for possible voids in the fluid. Other parameters, such as the makeup or temperature of the fluid can be used in determining the corrected conductivity measurement. Some such systems include an annular housing and can be inserted or integrated into fluid flow systems so that fluid to be analyzed flows through an aperture defined by the annular housing.

公开(公告)号：ES2869301T3

公开(公告)日：2021-10-25

申请号：ES16885397

申请日：2016-11-11

Applicant: ECOLAB USA INC

Inventor： BOLDUC JOHN ,  TOKHTUEV EUGENE ,  SKIRDA ANATOLY ,  PILIPCHENKO ANNA ,  VALENSTEIN JUSTIN SCOTT ,  BAKKEN AMANDA ,  FAWBUSH STACY ,  HUTCHISON JEFFREY

IPC: G01N21/64 ,  C07C409/24 ,  C07D213/78

Abstract: Un método para detectar un ácido mono-, di- o tripicolínico sustituido o no sustituido en una muestra de una composición de perácido que comprende; añadir a dicha muestra una cantidad eficaz de un agente reductor para formar una solución de muestra y de forma que se reduzca el perácido, analizar dicha solución de muestra con detección de fluorescencia.

公开(公告)号：CA2872662C

公开(公告)日：2021-03-16

申请号：CA2872662

申请日：2013-04-30

Applicant: ECOLAB USA INC

Inventor： TOKHTUEV EUGENE ,  OWEN CHRISTOPHER J ,  SKIRDA ANATOLY ,  CHRISTENSEN WILLIAM M

IPC: G01N21/15 ,  G01N21/64

Abstract: An optical sensor may include a sensor head that has an optical window for directing light into a flow of fluid and/or receiving optical energy from the fluid. The optical sensor may also include a flow chamber that includes a housing defining a cavity into which the sensor head can be inserted. In some examples, the flow chamber includes an inlet port defining a flow nozzle that is configured to direct fluid entering the flow chamber against the optical window of the sensor head. In operation, the force of the incoming fluid impacting the optical window may prevent fouling materials from accumulating on the optical window.