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公开(公告)号：US20220178892A1
公开(公告)日：2022-06-09
申请号：US17598575
申请日：2020-03-28
Applicant: Hach Company
Inventor： Daniel Gustav Mieritz , Angella Nicholle Greenawalt
Abstract: An embodiment provides a method for measuring an ion component of an aqueous sample using a photoreactive species, including: generating a metal organic framework by combining, in a reactive solution, at least one organic linker and at least one metal; impregnating the metal organic framework with the photoreactive species; introducing the impregnated metal organic framework into an aqueous sample; and measuring an analyte component concentration of the aqueous sample, wherein the measuring comprises measuring a change in the aqueous sample, wherein the change is responsive to the analyte component dissolving at least one of: the at least one organic linker and the at least one metal, and releasing the photoreactive species. Other embodiments are described and claimed.
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公开(公告)号：US11035798B2
公开(公告)日：2021-06-15
申请号：US16512054
申请日：2019-07-15
Applicant: Hach Company
Inventor： Darren Kent MacFarland , Rachel Nicole Seals
Abstract: An embodiment provides a method for measuring amines in a solution, including: preparing an indicator-metal complex, wherein the indicator-metal complex comprises an indicator and a metal; introducing the indicator-metal complex to a solution, wherein the solution contains an amount of amine, wherein the amine activates the indicator-metal complex causing a change in fluorescence intensity of the indicator-metal complex; and measuring the amount of amine in the solution by measuring the change in fluorescence intensity of the indicator-metal complex.
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公开(公告)号：US20210102914A1
公开(公告)日：2021-04-08
申请号：US17127296
申请日：2020-12-18
Applicant: Hach Company
Inventor： Corey Salzer , Vishnu Rajasekharan , Dan Kroll , John Lee
IPC: G01N27/404 , G01N27/49 , G01N33/18 , G01N27/407
Abstract: An embodiment provides an amperometric sensor, including: a housing containing an inner fill solution; an electrode bathed in the inner fill solution; and a membrane in intimate contact with the electrode; the electrode being formed as a non-compact or porous structure on the membrane; whereby a spatial relationship of the electrode and the membrane is constant. Other embodiments are described and claimed.
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公开(公告)号：US20210033579A1
公开(公告)日：2021-02-04
申请号：US16529594
申请日：2019-08-01
Applicant: Hach Company
Inventor： Daniel Gustav Mieritz
Abstract: An embodiment provides a method for measuring sulfate in an aqueous sample, including: introducing an aqueous sample containing an amount of sulfate to a barium dye complex, thereby creating a solution; adding a clarifying agent to the solution, thereby causing the solution to be clarified; and measuring the amount of sulfate in the aqueous sample by measuring a change in color of the solution, the change in color caused by the barium dye complex mixing with the sulfate. Other aspects are described and claimed.
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Patent Agency Ranking
公开(公告)号：US10823672B2
公开(公告)日：2020-11-03
申请号：US16690555
申请日：2019-11-21
Applicant: Hach Company
Inventor： Richard Edward Leggett , Wayne Boris Perdue , Andreas Mitreiter
Abstract: Various turbidimeters are described that can detect light directly in a substantially circular, e.g., encompassing, manner such that an increased amount of scattered light from a sample vial may be detected by a light detector, e.g., a photodiode or photodiode array. In an embodiment, a substantially circular photodiode array is provided to directly detect scattered light in an arc about the sample vial. In other embodiments, light guides are provided in an arc element that guides light to a detector or detectors. Other aspects are described and claimed.
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公开(公告)号：US10571315B2
公开(公告)日：2020-02-25
申请号：US15711483
申请日：2017-09-21
Applicant: Hach Company
Inventor： David L. Rick
Abstract: An embodiment provides a method for measuring velocity and depth of fluid flow in a channel, including: transmitting, using a transmitter, directed energy comprising a single energy beam slant-wise toward a surface of a fluid in a fluid channel producing a plurality of reflections, wherein the transmitting comprises modulating a frequency associated with the single energy beam; detecting, at a receiver, received signals from the plurality of reflections; and determining, based upon differences between parameters of the transmitted single energy beam and parameters of the received signals, the velocity of the fluid and the depth of the fluid. Other embodiments are described and claimed.
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公开(公告)号：US10317386B2
公开(公告)日：2019-06-11
申请号：US15223708
申请日：2016-07-29
Applicant: Hach Company
Inventor： Darren Kent MacFarland , Angella Nicholle Greenawalt
IPC: G01N33/00 , G01N33/18 , C07C323/20 , C07D235/08 , C07C323/33 , C08G65/40 , G01N21/29 , G01N21/25 , G01N21/27 , G01N21/31
Abstract: A method of measuring nitrate concentration in an aqueous sample includes mixing the aqueous sample with a water-soluble thioether chosen to reduce nitrate in the aqueous sample to nitrite in the presence of a water soluble catalyst, and a water soluble reagent system adapted to interact with nitrite to generate a color; measuring color generation, and correlating the color generation to nitrate concentration.
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公开(公告)号：US10281393B2
公开(公告)日：2019-05-07
申请号：US15512408
申请日：2015-09-18
Applicant: Hach Company
Inventor： Richard Edward Leggett , Wayne Boris Perdue , Andreas Mitreiter
Abstract: Various turbidimeters are described that can detect light directly in a substantially circular, e.g., encompassing, manner such that an increased amount of scattered light from a sample vial may be detected by a light detector, e.g., a photodiode or photodiode array. In an embodiment, a substantially circular photodiode array is provided to directly detect scattered light in an arc about the sample vial. In other embodiments, light guides are provided in an arc element that guides light to a detector or detectors. Other aspects are described and claimed.
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公开(公告)号：US20190086247A1
公开(公告)日：2019-03-21
申请号：US15711483
申请日：2017-09-21
Applicant: Hach Company
Inventor： David L. Rick
Abstract: An embodiment provides a method for measuring velocity and depth of fluid flow in a channel, including: transmitting, using a transmitter, directed energy comprising a single energy beam slant-wise toward a surface of a fluid in a fluid channel producing a plurality of reflections, wherein the transmitting comprises modulating a frequency associated with the single energy beam; detecting, at a receiver, received signals from the plurality of reflections; and determining, based upon differences between parameters of the transmitted single energy beam and parameters of the received signals, the velocity of the fluid and the depth of the fluid. Other embodiments are described and claimed.
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