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1. 发明申请

US20230018859A1 ELECTROCHEMICAL SENSORS FOR ANALYTE DETECTION IN WATER AND REFERENCE CORRECTION METHOD 有权
公开(公告)号：US20230018859A1
公开(公告)日：2023-01-19
申请号：US17856816
申请日：2022-07-01
申请人： Brewer Science, Inc.
发明人： Jonathan J. Fury , Xi Cao , Austin Peters , Chad Lakin , Cody Simmons , Alec Neeson
IPC分类号： G01N27/38 , G01N27/416 , G01N33/18 , G01N27/333
摘要： A sensing platform for continuous water resource monitoring by electrochemical detection and solution parameter correction is provided. The sensing platform employs a solid-state electrolyte three-electrode cell, creating a high ionic strength environment within the solid-state electrolyte membrane, which is in ion exchange equilibria with the sampled solution. This device may be used as a standalone sensor in environments where the water parameters (pH temperature, and ionic strength) are controlled, or in concert with compensation sensors where water parameters are not controlled.

2. 发明申请

US20220308006A1 SENSOR CLEANING AND CALIBRATION DEVICES AND SYSTEMS 有权
公开(公告)号：US20220308006A1
公开(公告)日：2022-09-29
申请号：US17616871
申请日：2020-06-05
申请人： Hach Company
发明人： Gregg Allan McLeod
IPC分类号： G01N27/38 , G01N27/416 , G01N1/20
摘要： An electrode cleaning and calibration system generally comprises a sensor holder assembly machined from a block of solid acrylic or similar plastic material, which can accommodate a variety of types and sizes of sensors for use in monitoring and measurement of water processing and treatment processes. Examples of sensors suitable for use in the system include pH sensors, dissolved oxygen sensors, chlorine sensors, ozone sensors, total suspended solid sensors, mixed liquor suspended solid sensors, ammonia sensors, monochloramine sensors, and ultraviolent transmittance sensors.

3. 发明授权

US11150210B2 System and method for identifying and cleaning contamination of an electrochemical sensor 有权
公开(公告)号：US11150210B2
公开(公告)日：2021-10-19
申请号：US16329254
申请日：2016-08-31
申请人： HONEYWELL INTERNATIONAL INC.
发明人： Yuzhong Yu , Ling Liu , Feng Liang
IPC分类号： G01N27/38 , G01N27/30 , G01N27/403 , G01N33/00
摘要： Methods and systems for identifying contamination of an electrochemical sensor (10) and cleaning the electrochemical sensor (10) are provided. A method may comprise scanning the sensor (10) for the first time using CV to generate a reference set of readings; scanning the sensor (10) for the second time after the sensor (10) has been employed; comparing a second set of readings from the second CV scan to the reference set of readings; when the second set of readings is different from the reference set of readings, determining that the sensor (10) potential has shifted; scanning the sensor (10) for the third time to clean one or more elements of the sensor (10); scanning the sensor (10) for the fourth time; comparing a fourth set of readings from the fourth CV scan to the second set of readings; and determining that the potential of the sensor (10) has shifted due to pollution of the sensor (10), and/or that the sensor (10) can be further cleaned.

4. 发明授权

US10989688B2 Techniques for extending electrode serviceability and useful life in voltametric device 有权
公开(公告)号：US10989688B2
公开(公告)日：2021-04-27
申请号：US16277927
申请日：2019-02-15
申请人： AMS Trace Metals, Inc.
发明人： Vladimir Dozortsev
IPC分类号： G01N27/48 , G01N27/38 , G01N27/403 , G01N27/30 , G01N35/00 , G01N27/34 , G01N33/208 , G01N33/18
摘要： This disclosure provides techniques for extending useful life of a reference electrode, as well as a novel voltametric system and measurement cell design and related chemistries. An automated, repeatable-use system features a reference electrode that directly immerses a metallic conductor into an analyte, with electrolytes (e.g., chlorides) used for measurement being separately added and removed for each measurement cycles; the metallic conductor can optionally be left exposed to clean dry air in between measurements. In one implementation, the system can be restricted to application with specific analytes (e.g., ground water) that are known in advance to be free of substances that could degrade reference electrode use or lifetime. Cleaning solutions can optionally be used that would not be practical with conventional (insulated) reference electrode designs. In another embodiment, a measurement cell can be configured to receive separated electrode modules, permitting independent cleaning/removal of the working electrode (or other electrodes).

5. 发明申请

US20210003527A1 METHODS OF MANUFACTURING BIOSENSOR NANOWELLS 有权
公开(公告)号：US20210003527A1
公开(公告)日：2021-01-07
申请号：US16982909
申请日：2019-03-22
申请人： MARA NANOTECH KOREA, INC. , MARA NANOTECH NEW YORK, INC.
发明人： Heayeon LEE
IPC分类号： G01N27/327 , G03F7/20 , G01N27/38 , G01N33/543
摘要： Improved methods of manufacturing highly sensitive and selective electrochemical biosensors are provided. The method may comprise washing the nanowell array electrodes of the biosensors with ferricyanide, preferably potassium ferricyanide. The method may also comprise washing the electrodes of the biosensors with methylene blue (i.e., methylthioninium chloride), either in addition to the ferricyanide and/or H2SO4 washing steps, or without the ferricyanide and/or H2SO4 washing steps.

6. 发明授权

US10481127B2 Apparatus for, system for and methods of maintaining sensor accuracy 有权
公开(公告)号：US10481127B2
公开(公告)日：2019-11-19
申请号：US15714592
申请日：2017-09-25
申请人： Ecolab USA Inc.
发明人： Kun Xiong , Brandon M. Davis , William A. Von Drasek
IPC分类号： G01N33/18 , G01N27/416 , G01N27/38 , G01N1/34
摘要： Methods of maintaining accuracy in the measurement of one or more parameters of industrial water in industrial water systems are provided. The methods include the use of physical and/or chemical procedures to prevent and/or remove deposition from one or more surfaces utilized in measurement of the one or more parameters. The deposition may be caused by, for example, corrosion, fouling, or microbiological growth.

7. 发明授权

US09546978B2 Analyzer for monitoring salt content in high resistivity fluids 有权
标题翻译：用于监测高电阻率流体中盐含量的分析仪
公开(公告)号：US09546978B2
公开(公告)日：2017-01-17
申请号：US14933309
申请日：2015-11-05
申请人： Saudi Arabian Oil Company
发明人： Rashed Mohammad Aleisa , Naim Akmal , Taher Ali Atef Alamri
IPC分类号： G01N27/416 , G01N33/22 , G01N27/38 , G01N33/28 , G01N27/06
CPC分类号： G01N27/4166 , G01N27/06 , G01N27/38 , G01N33/22 , G01N33/28 , G01N33/2835
摘要： An electrochemical polymerization based salt content analyzer configured to determine salt composition in a direct, fast, and serial manner. The salt content analyzer includes three electrodes: a working electrode, a counter electrode and a reference electrode. In operation, the current passing through the electrodes as a sweeping voltage is applied may be analyzed to determine the salt content of the analyte. The working electrode includes an access control mechanism to only expose a fraction of the working length of the working electrode to the outside environment at any given time. The access control mechanism is advanced between tests to expose a fresh portion of the working electrode. Thus, testing may be performed in a serial manner.
摘要翻译：一种基于电化学聚合的盐含量分析仪，其配置为以直接，快速和连续的方式测定盐组成。盐含量分析仪包括三个电极：工作电极，对电极和参比电极。在操作中，可以分析施加作为扫描电压通过电极的电流，以确定分析物的盐含量。工作电极包括访问控制机构，用于在任何给定时间仅将工作电极的工作长度的一部分暴露于外部环境。访问控制机构在测试之间进行，以暴露工作电极的新鲜部分。因此，可以以串行方式执行测试。

8. 发明申请

US20160178563A1 ELECTROCHEMICAL METAL AND ALLOY DETECTOR AND METHOD 有权
标题翻译：电化学金属和合金探测器及方法
公开(公告)号：US20160178563A1
公开(公告)日：2016-06-23
申请号：US14576309
申请日：2014-12-19
申请人： Palo Alto Research Center Incorporated
发明人： Saroj Sahu , Craig Eldershaw , Vedasri Vedharathinam , Divyaraj Desai , Jessica Louis Baker Rivest , Ranjeet Rao
IPC分类号： G01N27/333 , G01N27/38 , G01N27/30
CPC分类号： G01N33/20 , G01N27/308 , G01N27/416
摘要： Disclosed is an electrochemical probe system and an electrical excitation method, used to identify the composition of metals and alloys.
摘要翻译：公开了用于识别金属和合金的组成的电化学探针系统和电激励方法。

9. 发明申请

US20150168342A1 Amperometric Sensor System 审中-公开
标题翻译：电流传感器系统
公开(公告)号：US20150168342A1
公开(公告)日：2015-06-18
申请号：US14625546
申请日：2015-02-18
申请人： Michael A. Silveri
发明人： Michael A. Silveri
IPC分类号： G01N27/38 , F04D1/04
CPC分类号： G01N27/08 , F04D1/04 , G01N27/06 , G01N27/4168 , Y10T29/49002
摘要： A sensor system that measures at least one parameter of water includes an electronics subsystem and includes a sensor housing electrically and mechanically coupled to the electronics subsystem. The sensor housing encloses a chamber that receives water via at least one inlet and that releases water via at least one outlet. At least one sensor has at least one electrode exposed to water in the chamber. A flow generator causes water to flow through the chamber. A plurality of objects within the chamber move in response to the water flow and abrasively clean the at least one electrode. Preferably, the sensor system includes a chlorine sensor having at least two electrodes. The electronics subsystem applies a first differential voltage between the two electrodes during a measurement interval and then applies a second differential voltage between the two electrodes during an interval following the measurement interval.
摘要翻译：测量水的至少一个参数的传感器系统包括电子子系统，并且包括电气和机械耦合到电子子系统的传感器外壳。传感器外壳包围通过至少一个入口接收水并经由至少一个出口释放水的室。至少一个传感器具有暴露于腔室中的水的至少一个电极。流量发生器使水流过腔室。室内的多个物体响应于水流而移动并且磨蚀性地清洁至少一个电极。优选地，传感器系统包括具有至少两个电极的氯传感器。电子子系统在测量间隔期间在两个电极之间施加第一差分电压，然后在测量间隔之后的间隔期间在两个电极之间施加第二差分电压。

10. 发明申请

US20050236280A1 Methods for analyzing inorganic components of an electrolytic solution, and /or cleaning an electrochemical analytical cell 审中-公开
标题翻译：用于分析电解液的无机成分的方法和/或清洗电化学分析电池
公开(公告)号：US20050236280A1
公开(公告)日：2005-10-27
申请号：US10833193
申请日：2004-04-27
申请人： Jianwen Han , Mackenzie King , Weihua Wang
发明人： Jianwen Han , Mackenzie King , Weihua Wang
IPC分类号： G01N27/26 , G01N27/38 , G01N27/49
CPC分类号： G01N27/49 , G01N27/38
摘要： Cyclic electric potential is employed for measuring copper and sulfuric acid concentration in an electrochemical copper-plating solution. Such cyclic electric potential is further employed for cleaning electrode surface in an electrochemical analytical cell.
摘要翻译：循环电位用于测量电化学镀铜溶液中的铜和硫酸浓度。这种循环电位进一步用于清洁电化学分析池中的电极表面。

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