公开(公告)号：US11953496B2

公开(公告)日：2024-04-09

申请号：US17621024

申请日：2020-08-19

Applicant: Hach Company

Inventor： Michael Jonathan Tschampl ,  Peter Michalski ,  Reece W. Hopkins ,  Frederik Nordahl

IPC: G01N33/487 ,  B01L3/00

CPC classification number: G01N33/48771 ,  B01L3/545 ,  B01L2200/16

Abstract: The invention provides a method for selecting a color for a chemistry or instrument based upon a parameter of a test, the method including: identifying a color corresponding to a parameter of a test for the parameter; selecting, if the color corresponding to the parameter has not previously been used for another parameter, the color for designating a chemistry or an instrument as corresponding to the parameter; selecting, if the color corresponding to the parameter has previously been used for another parameter, a different color other than the color for designating a chemistry or an instrument as corresponding to the parameter, wherein the selecting a color other than the color comprises identifying a color having a measure of change in visual perception of the different color against other previously selected colors a predetermined value from the other previously selected colors; and utilizing the selected colors for parameters across both chemistries (102, 104, 105) and instruments (101, 103) that are utilized in tests for the parameters.

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

IPC: G01N33/18 ,  G01N1/34 ,  G01N1/40 ,  G01N27/30

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.

公开(公告)号：US11689908B2

公开(公告)日：2023-06-27

申请号：US17085612

申请日：2020-10-30

Applicant: Hach Company

Inventor： Brian Alan Harmon ,  Gregory James Lipinski ,  Joseph Rockstan Williams ,  Theophilus Brian Mooney

IPC: H04W84/18 ,  H04W4/80 ,  H04W76/14 ,  H04W8/00 ,  H04W4/38 ,  H04W12/033

CPC classification number: H04W4/80 ,  H04W4/38 ,  H04W8/005 ,  H04W12/033 ,  H04W76/14 ,  H04W84/18

Abstract: An embodiment provides a method for transferring information from at least one instrument to an application, including: establishing a central protocol structure, wherein the central protocol structure defines a format for information transmitted utilizing the central protocol structure; receiving, at the application and over a wireless communication channel information from the at least one instrument, wherein the information is formatted in view of the central protocol structure; and performing, within the application, an action with respect to the information within the application, wherein the performing comprises deciphering the information contained in view of the central protocol structure.

公开(公告)号：US11595798B2

公开(公告)日：2023-02-28

申请号：US17085760

申请日：2020-10-30

Applicant: Hach Company

Inventor： Brian Alan Harmon ,  Gregory James Lipinski ,  Joseph Rockstan Williams ,  Theophilus Brian Mooney ,  Timothy A. Higgins ,  Dan Jonathan Kroll ,  Vishnu Rajasekharan ,  Corey Alan Salzer

IPC: H04W4/80 ,  H04W76/14 ,  H04W8/00 ,  H04W84/18 ,  H04W4/38 ,  H04W12/033

Abstract: An embodiment provides a method for transferring information from at least one instrument to an application, including: establishing a central protocol structure, wherein the central protocol structure defines a format for information transmitted utilizing the central protocol structure; transmitting over a short-range wireless communication channel information from the at least one device to the application, wherein the information is formatted in a broadcast packet in view of the central protocol structure; receiving, at the application, information from the at least one device; and performing, within the application, an action with respect to the information within the application, wherein the performing comprises deciphering the information contained in view of the central protocol structure.

公开(公告)号：US11567052B2

公开(公告)日：2023-01-31

申请号：US16667714

申请日：2019-10-29

Applicant: Hach Company

Inventor： Angella Nicholle Greenawalt

IPC: G01N33/18 ,  G01N21/78 ,  G01N31/22

Abstract: An embodiment provides a method for measuring nitrate in an aqueous sample, including: introducing an aqueous sample containing an amount of nitrate to a cation exchange resin; flowing the aqueous sample over copper metal; adding a reducing reagent to the aqueous sample; adding a colorimetric indicator to the aqueous sample; and measuring the amount of nitrate in the aqueous sample by measuring a change in intensity of the absorbance. Other aspects are described and claimed.

公开(公告)号：USD975562S1

公开(公告)日：2023-01-17

申请号：US29755064

申请日：2020-10-16

Applicant: Hach Company

Designer： James Delbert Duncan ,  Michael Jonathan Tschampl ,  Kristianne Johnson-Smith ,  Espen Haakon Karlsen ,  Brian Alan Harmon ,  Brian J. Dreiling ,  Robert Allen Luther

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

IPC: G01N27/27 ,  G01N27/30 ,  G01N33/18 ,  G01N31/00 ,  G01N31/22

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.

公开(公告)号：US11408867B2

公开(公告)日：2022-08-09

申请号：US16529594

申请日：2019-08-01

Applicant: Hach Company

Inventor： Daniel Gustav Mieritz

IPC: G01N31/22 ,  G01N31/02

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.

公开(公告)号：US11333645B2

公开(公告)日：2022-05-17

申请号：US16387191

申请日：2019-04-17

Applicant: Hach Company

Inventor： Angella Nicholle Greenawalt

IPC: G01N31/22

Abstract: An embodiment provides A method for measuring fluoride concentration in an aqueous solution, including: preparing a metal-ligand complex, wherein the metal-ligand complex comprises chromeazurol S and aluminum; placing the metal-ligand complex in a sample containing fluoride, wherein the placing generates a color change by releasing the chromeazurol S from the metal-ligand complex; and measuring, using colorimetric techniques, a concentration of fluoride within the sample, wherein the measuring comprises measuring an absorbance wavelength of a colorimetric ligand. Other embodiments are described and claimed.

公开(公告)号：US11331674B2

公开(公告)日：2022-05-17

申请号：US16397259

申请日：2019-04-29

Applicant: Hach Company

Inventor： Jordan Vin Raviv ,  Cory Scott Miller ,  Ralf Leidner ,  Robert Allen Luther

IPC: B01L3/00 ,  B01F25/43 ,  B01F25/431 ,  B01F33/30

Abstract: An embodiment provides a device for mixing at least two reagent fluids, the mixed at least two reagent fluids being used for the measurement of a chemical attribute of a sample, including: a housing; at least two inlet ports, each to receive fluid in a premix state; an outlet port to dispense fluid in a postmix state; and a surface of a lumen for mixing, located within the housing, having a predetermined length, wherein the surface of the lumen is located between the at least two inlet ports and the outlet port, wherein the at least two inlet ports transition into the surface of the lumen, wherein the predetermined length is of a length allowing for sufficient mixing of the fluids received by the at least two inlet ports, wherein the surface of the lumen comprises at least one anti-siphoning element and a plurality of weirs to create a disturbance of a fluid contained therein, wherein the at least two fluids each comprise a reagent for a measurement of a chemical attribute of a sample. Other aspects are described and claimed.