公开(公告)号：WO2010138224A1

公开(公告)日：2010-12-02

申请号：PCT/US2010/025798

申请日：2010-03-01

Applicant: HACH COMPANY ,  ROYER, Douglas, F.

Inventor： ROYER, Douglas, F.

IPC: G01N31/00 ,  G01N21/00

CPC classification number: G01N31/22 ,  G01N21/783 ,  G01N21/8483 ,  Y10S436/81

Abstract: A chemical indicating device (10) for detection of chloride ions in a sample is provided. The chemical indicating device (10) includes a carrier matrix (12) and an indicator (14) having silver and vanadate supported on the carrier matrix (12). A method for detecting chloride ions is also provided.

Abstract translation: 提供了一种用于检测样品中氯离子的化学指示装置（10）。 化学指示装置（10）包括载体矩阵（12）和负载在载体矩阵（12）上的银和钒酸盐的指示器（14）。 还提供了一种检测氯离子的方法。

公开(公告)号：WO2007109573A1

公开(公告)日：2007-09-27

申请号：PCT/US2007/064219

申请日：2007-03-16

Applicant: HACH COMPANY

Inventor： WOODWARD, John, Robert ,  MOORE, Leon, Edward ,  YOUNG, Russell, M.

IPC: G01N27/333 ,  G01N27/36

CPC classification number: G01N27/36 ,  G01N27/4035

Abstract: A method for manufacturing a differential pH probe body by forming a plurality of tube shaped segments where each of the plurality of tube shaped segments comprises a first section formed from a pH sensitive material and a second section formed from a non-pH sensitive material. Coupling the plurality of tube shaped segments together end-to-end to form the differential pH probe body where the pH sensitive sections alternate with the non-pH sensitive sections and then closing one end of the differential pH probe body.

Abstract translation: 一种通过形成多个管状段来制造差分pH探针体的方法，其中多个管状段中的每一个包括由pH敏感材料形成的第一部分和由非pH敏感材料形成的第二部分。 将多个管状段端对端耦合以形成差分pH探针体，其中pH敏感部分与非pH敏感部分交替，然后闭合差示pH探针体的一端。

公开(公告)号：WO2007075341A2

公开(公告)日：2007-07-05

申请号：PCT/US2006/047581

申请日：2006-12-13

Applicant: HACH COMPANY

Inventor： MITCHELL, Thomas, Owen

IPC: G01N21/03

CPC classification number: G01N21/643 ,  G01N21/8507 ,  G01N2201/0648

Abstract: A method and apparatus for visually detecting when a luminescent dissolved oxygen sensor is operating is disclosed. In one example embodiment of the invention, a shutter (216) is placed into the light tight container. When the shutter (216) is open, a user can see into the light tight container and verify probe operation. When the shutter (216) is closed, external light is prevented from entering the light tight container and affecting measurement accuracy. In another example embodiment of the invention, one end of a light pipe (526) is placed on the outside of the light tight container, and the other end is positioned to view the light source (504) of the probe. In another example embodiment of the invention a second light source (628), visible on the outside of the light tight container, is used to verify operation of the probe. In another example embodiment of the invention, a predetermined area is left open in the optically opaque hydrostatically transparent (814) on the face of the sensor window, allowing a user to see light from the sensor when the sensor is operating properly.

Abstract translation: 公开了一种用于可视地检测发光溶解氧传感器何时在工作的方法和装置。 在本发明的一个示例性实施例中，快门（216）被放置在不透光的容器中。 当快门（216）打开时，用户可以看到不透光的容器并验证探针操作。 当快门（216）关闭时，防止外部光进入不透光容器并影响测量精度。 在本发明的另一示例性实施例中，光管（526）的一端放置在不透光的容器的外侧，另一端定位成观察探针的光源（504）。 在本发明的另一示例性实施例中，在不透光容器的外侧上可见的第二光源（628）被用于验证探针的操作。 在本发明的另一示例性实施例中，预定区域在传感器窗口的面上的光学不透明流体透明（814）中保持打开，使得用户在传感器正常运行时看到来自传感器的光。

公开(公告)号：WO2005085827A1

公开(公告)日：2005-09-15

申请号：PCT/US2005/006741

申请日：2005-03-01

Applicant: HACH COMPANY ,  BUCK, Michael, D.

Inventor： BUCK, Michael, D.

IPC: G01N27/333

CPC classification number: G01N27/301

Abstract: An ion-selective electrode (10) including a water-impermeable, non-conductive substrate (12); an electrically conductive layer including a metal/metal salt mixture (14) supported on a surface of the substrate; a hydrophobic, conductive intermediate layer (16) in contact with the metal/metal salt layer and including a salt having suitable ionic mobility such that an electrode potential is rapidly established; a layer (18) including an ion-specific ligand in contact with the intermediate layer; and a water-impermeable barrier layer (20) which overlays the layer including the ion-specific ligand such that a portion of this layer is uncovered, and a method for preparing same, is described. The present ion-selective electrode permits rapid, reproducible measurements of ion concentrations to be made without requiring electrode calibration and in the absence of liquid electrolytes.

Abstract translation: 一种离子选择性电极（10），包括不透水的非导电基底（12）; 包括支撑在所述基板的表面上的金属/金属盐混合物（14）的导电层; 与金属/金属盐层接触的疏水导电中间层（16），并且包括具有合适的离子迁移率的盐，使得电极电位迅速建立; 包含与中间层接触的离子特异性配体的层（18）; 以及覆盖包括离子特异性配体的层的不透水阻挡层（20），使得该层的一部分未被覆盖，以及其制备方法。 本离子选择性电极允许快速，可重复地测量离子浓度，而不需要电极校准和不存在液体电解质。

公开(公告)号：WO2005077541A1

公开(公告)日：2005-08-25

申请号：PCT/US2005/002811

申请日：2005-02-02

Applicant: HACH COMPANY

Inventor： MOORE, Leon, E.

IPC: B04B5/04

CPC classification number: B04B5/04 ,  G01N21/07

Abstract: An analytical rotor system (120) is configured to perform a plurality of tests selected by a user. The analytical rotor comprises a plurality of rotor blocks (101-104) and a rotor base (100). The rotor blocks (101-104) are each configured to perform at least one of the tests on at least one sample in response to centrifugal force. The rotor blocks (101-104) are physically separate units from one another. The rotor base (100) is a physically separate unit from the rotor blocks (101-104) and is configured to allow the user to manually install the rotor blocks (101-104) on the base. The rotor base (100) is configured to hold the installed rotor blocks (101-104) in place during the centrifugal force and to connect to an analytical device (110) that provides the centrifugal force.

Abstract translation: 分析转子系统（120）被配置为执行由用户选择的多个测试。 分析转子包括多个转子块（101-104）和转子基座（100）。 转子块（101-104）各自被配置为响应于离心力对至少一个样品执行至少一个测试。 转子块（101-104）是彼此物理上分离的单元。 转子基座（100）是与转子块（101-104）的物理上分离的单元，并且构造成允许使用者手动地将转子块（101-104）安装在基座上。 转子基座（100）构造成在离心力期间将安装的转子块（101-104）保持在适当位置，并连接到提供离心力的分析装置（110）。

公开(公告)号：WO1996041160A1

公开(公告)日：1996-12-19

申请号：PCT/US1996003748

申请日：1996-03-19

Applicant: HACH COMPANY

Inventor： HACH COMPANY ,  MILLER, Donald, G.

IPC: G01N33/18

CPC classification number: G01N33/1806 ,  G01N31/225

Abstract: A method of analyzing aqueous samples for Chemical Oxygen Demand (COD) which involves using an analysis reagent comprised of a mixture of stabilized Manganese III ion and an inorganic non-oxidizing acid such as sulfuric or phosphoric acid. Manganese III ion (or manganosulfuric acid complex) is purple, and, as it is reduced to Manganese II ion, the purple color decreases to colorless. Manganese III Chemical Oxygen Demand test is preferred over the presently available chromium reagent test because Chromium VI ion is a known carcinogen, the reagent is photosensitive and a silver catalyst is required. Manganese III is not carcinogenic or photosensitive and does not require a silver catalyst.

Abstract translation: 分析化学需氧量（COD）的含水样品的方法，其涉及使用由稳定的锰III离子和无机非氧化性酸如硫酸或磷酸的混合物组成的分析试剂。 锰III离子（或三价砷酸络合物）是紫色的，并且由于还原成锰II离子，紫色降低至无色。 锰III化学需氧量测试比目前可用的铬试剂更优选，因为Chromium VI离子是一种已知的致癌物质，该试剂是光敏的，需要一种银催化剂。 锰III不具致致癌性或光敏性，不需要银催化剂。

公开(公告)号：WO2023033888A1

公开(公告)日：2023-03-09

申请号：PCT/US2022/031235

申请日：2022-05-27

Applicant: HACH COMPANY

Inventor： GREENAWALT, Angella, Nicholle

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

Abstract: An embodiment of a method for measuring an amount of manganese in an aqueous sample includes: reducing, using a dechlorination reagent, wherein the dechlorination reagent comprises iron(ll) and potassium iodide; oxidizing, under an alkaline condition using sodium hydroxide, Mn(ll) to Mn(IV) in the aqueous sample, chelating, using etidronic acid (HEDP), Fe(ll) and Fe(lll) in the aqueous sample, oxidizing an amount of the colorimetric indicator 3, 3', 5,5'- tetramethylbenzidine (TMB) with Mn(IV); and measuring the amount of manganese within the aqueous sample, by measuring an absorbance intensity at a wavelength of the oxidized amount of 3,3',5,5'-tetramethylbenzidine (TMB). Other aspects are described and claimed.

公开(公告)号：WO2022140193A1

公开(公告)日：2022-06-30

申请号：PCT/US2021/064131

申请日：2021-12-17

Applicant: HACH COMPANY

Inventor： SALZER, Corey, Alan

IPC: G01N31/16 ,  G01N27/44 ,  G01N27/30 ,  G01N27/416 ,  G01N33/18

Abstract: An embodiment provides a method for measuring a characteristic of an aqueous sample, including: introducing the aqueous sample to a titration region and a reaction region of a measurement device, wherein the titration region comprises a pH electrode and a protonator electrode contacting a first portion of an aqueous sample, wherein the reaction region comprises a counter electrode contacting a second portion of the aqueous sample; placing an electrolyte reservoir in a state of electrical continuity with the titration region and the reaction region, wherein the electrolyte reservoir comprises a reference electrode, wherein the volume of the electrolyte reservoir comprises a large volume of an electrolyte; and determining a characteristic of the aqueous sample by measuring an electrochemical characteristic between the reference electrode and at least one of: the pH electrode and the counter electrode. Other aspects are described and claimed.

公开(公告)号：WO2021222872A1

公开(公告)日：2021-11-04

申请号：PCT/US2021/030359

申请日：2021-04-30

Applicant: HACH COMPANY

Inventor： SALZER, Corey, Alan ,  LEIDNER, Ralf

IPC: G01N27/49 ,  G01N33/18

Abstract: An embodiment provides a method for measuring total oxidant in a seawater sample, comprising: forming a seawater solution and a formed iodine by introducing a buffer and an iodide reagent to a seawater sample, wherein the seawater sample contains an amount of oxidant; placing the seawater solution in a measurement device, wherein the measurement device comprises a boron doped diamond working electrode reacting with the seawater solution and the formed iodine, wherein an electrochemical process reduces the formed iodine to iodide; and measuring the amount of total oxidant in the seawater sample by measuring, using the measurement device, an amount of iodide in the seawater sample. Other aspects are described and claimed.

公开(公告)号：WO2021162782A1

公开(公告)日：2021-08-19

申请号：PCT/US2020/065970

申请日：2020-12-18

Applicant: HACH COMPANY

Inventor： DUNCAN, Zoe

IPC: G01N27/30 ,  C25B11/043

Abstract: A method for manufacturing a pH electrode with a carbon region, including: determining at least one pulse overlap modification for a laser pulse used when machining the carbon region; selecting a pattern for machining the carbon region; and machining a sp2 carbon region having the at least one pulse overlap modification and in the selected pattern by pulsing a laser onto a BDD (boron doped diamond) electrode surface in the selected pattern with the at least one pulse overlap modification.