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公开(公告)号：US11796549B2
公开(公告)日：2023-10-24
申请号：US17174972
申请日：2021-02-12
Applicant: Hach Company
Inventor： Vishnu Vardhanan Rajasekharan , Cary Burton Jackson , Russell Young
IPC: G01N35/00
CPC classification number: G01N35/00663 , G01N2035/00673
Abstract: An embodiment provides a method for real-time management of analyte recovery within a system for measuring at least one parameter of a fluid within the system by monitoring signals from the system against a set of conditions, the method including: receiving, from the system, signals providing information regarding the system, wherein the system includes at least one reagent flowing into the system and recovers analytes within the fluid, wherein the analytes provide an indication of a value of the at least one parameter; identifying, by analyzing the signals, whether the analyte recovery of the system is meeting the set of conditions identifying a desired analyte recovery of the system; and modifying, based upon the analyte recovery not meeting the set of conditions, conditions of the system for recovery of the analyte, wherein the modifying includes adjusting at least one parameter of the system.
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公开(公告)号：US20230228726A1
公开(公告)日：2023-07-20
申请号：US17580215
申请日：2022-01-20
Applicant: Hach Company
Inventor： Vishnu Vardhanan Rajasekharan , Cary Burton Jackson , Matthew Ryan Salzer , Dan Jonathan Kroll
CPC classification number: G01N33/1826 , G01N1/34 , G01N1/4055 , G01N27/308 , G01N2001/4061 , G01N2001/4038
Abstract: An embodiment provides a method for deriving an amount of PFAS substances from a total organic fluoride measurement in a sample, including: removing inorganic fluoride from the sample using one or more of an ion exchange cartridge and an exclusion apparatus; preconcentrating, using a solid phase extraction, at least one PFAS substance in the sample; digesting, using a working electrode and a counter electrode, the at least one PFAS substance to an amount of total organic fluoride; and determining, using an analyzer, the amount of total organic fluoride in the sample. Other aspects are described and claimed.
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公开(公告)号：US20220317080A1
公开(公告)日：2022-10-06
申请号：US17709684
申请日：2022-03-31
Applicant: Hach Company
Inventor： Vishnu Vardhanan Rajasekharan , Cary Burton Jackson
Abstract: An embodiment provides a method for deriving an alkalinity measurement, including: introducing a fluid sample; measuring, a phosphate amount of the fluid sample using a colorimetric reagent; measuring a pH of the fluid sample, wherein the pH of the fluid sample correlates to a hydroxide amount of the fluid sample; introducing an acid to convert all the inorganic carbon to carbon dioxide; applying a positive potential to the SP3 substituted carbon electrode; introducing, prior to or substantially simultaneously during the application of the positive potential to the SP3 substituted carbon electrode and in the reaction chamber, at least one acid reagent comprising a metallic catalyst that converts the carbonate and the partially oxidized species to carbon dioxide; determining total organic carbon by detecting an amount of carbon dioxide produced by the oxidation; determining the total organic carbon from the oxidation of the organic carbon species, and determining a derived alkalinity based upon the phosphate amount, the hydroxide amount, and the amount of carbon dioxide generated from the inorganic carbon. Other aspects are described and claimed.
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Patent Agency Ranking
公开(公告)号：US12163937B2
公开(公告)日：2024-12-10
申请号：US17580215
申请日：2022-01-20
Applicant: Hach Company
Inventor： Vishnu Vardhanan Rajasekharan , Cary Burton Jackson , Matthew Ryan Salzer , Dan Jonathan Kroll
Abstract: An embodiment provides a method for deriving an amount of PFAS substances from a total organic fluoride measurement in a sample, including: removing inorganic fluoride from the sample using one or more of an ion exchange cartridge and an exclusion apparatus; preconcentrating, using a solid phase extraction, at least one PFAS substance in the sample; digesting, using a working electrode and a counter electrode, the at least one PFAS substance to an amount of total organic fluoride; and determining, using an analyzer, the amount of total organic fluoride in the sample. Other aspects are described and claimed.
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公开(公告)号：US11549879B2
公开(公告)日：2023-01-10
申请号：US16614898
申请日：2018-05-18
Applicant: HACH COMPANY
Inventor： Cary Burton Jackson , Richard Edward Leggett
Abstract: One embodiment provides a system, including: at least two water analyzers, wherein at least one of the at least two water analyzers is positioned upstream of a purification apparatus and wherein at least another of the at least two water analyzers is positioned downstream of the purification apparatus; at least one processor; and a memory device that stores instructions executable by the processor to: receive water analysis data from the at least two water analyzers, wherein the water analysis data comprises information related to membrane integrity; identify an algorithm for calculating membrane integrity based upon received data corresponding to system attributes; and calculate, using the identified algorithm, the membrane integrity based upon the received water analysis data. Other aspects are described and claimed.
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公开(公告)号：US20220260599A1
公开(公告)日：2022-08-18
申请号：US17174972
申请日：2021-02-12
Applicant: Hach Company
Inventor： Vishnu Vardhanan Rajasekharan , Cary Burton Jackson , Russell Young
IPC: G01N35/00
Abstract: An embodiment provides a method for real-time management of analyte recovery within a system for measuring at least one parameter of a fluid within the system by monitoring signals from the system against a set of conditions, the method including: receiving, from the system, signals providing information regarding the system, wherein the system includes at least one reagent flowing into the system and recovers analytes within the fluid, wherein the analytes provide an indication of a value of the at least one parameter; identifying, by analyzing the signals, whether the analyte recovery of the system is meeting the set of conditions identifying a desired analyte recovery of the system; and modifying, based upon the analyte recovery not meeting the set of conditions, conditions of the system for recovery of the analyte, wherein the modifying includes adjusting at least one parameter of the system.
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公开(公告)号：US20200247696A1
公开(公告)日：2020-08-06
申请号：US16649564
申请日：2018-09-28
Applicant: HACH COMPANY
Inventor： Cary Burton Jackson
Abstract: An embodiment provides a method for quenching hexavalent chromium, including: obtaining a vessel comprising an aqueous sample comprising hexavalent chromium; introducing a reducing agent to the aqueous sample; and mixing, into a mixed solution, the reducing agent and the aqueous sample, wherein the mixing causes the reducing agent to quench the hexavalent chromium and wherein a quantity of the reducing agent comprises a quantity that reduces the hexavalent chromium to trivalent chromium.
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公开(公告)号：US20200158618A1
公开(公告)日：2020-05-21
申请号：US16614898
申请日：2018-05-18
Applicant: HACH COMPANY
Inventor： Cary Burton Jackson , Richard Edward Leggett
Abstract: One embodiment provides a system, including: at least two water analyzers, wherein at least one of the at least two water analyzers is positioned upstream of a purification apparatus and wherein at least another of the at least two water analyzers is positioned downstream of the purification apparatus; at least one processor; and a memory device that stores instructions executable by the processor to: receive water analysis data from the at least two water analyzers, wherein the water analysis data comprises information related to membrane integrity; identify an algorithm for calculating membrane integrity based upon received data corresponding to system attributes; and calculate, using the identified algorithm, the membrane integrity based upon the received water analysis data. Other aspects are described and claimed.
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