Kinetic chlorine measurement
    221.
    发明授权

    公开(公告)号:US09746451B2

    公开(公告)日:2017-08-29

    申请号:US14677718

    申请日:2015-04-02

    Applicant: Hach Company

    CPC classification number: G01N33/182 G01N33/84

    Abstract: An aspect provides a method of determining a concentration of free chlorine in an aqueous sample, including adding a reagent to the sample, the reagent being reactive with the free chlorine at a first kinetic rate and reactive with at least one chloramine at a second kinetic rate, the first kinetic rate being different from the second kinetic rate; measuring an absorbance response over time resulting from reaction of the free chlorine and the at least one chloramine with the reagent over time; and determining the concentration of the free chlorine in the sample based on a determined rate of change of the absorbance response over time. Other aspects are described and claimed.

    Annular optical device
    225.
    发明授权
    Annular optical device 有权
    环形光学器件

    公开(公告)号:US09323035B2

    公开(公告)日:2016-04-26

    申请号:US14215503

    申请日:2014-03-17

    Applicant: Hach Company

    Inventor: Perry A. Palumbo

    Abstract: One embodiment provides an annular optical device, comprising: an annular meso-optic having a substantially triangular cross section and including an annulus centered about an axis of revolution; and a secondary optical structure substantially coaxial within the annulus of the annular meso-optic, wherein the secondary optical structure and the annular meso-optic are separated by a media comprising a media refractive index that is lower than a secondary optical structure refractive index, with the secondary optical structure being configured to hold a specimen to be radiated by impinging electromagnetic radiation directed into the secondary optical structure substantially along the axis of revolution, wherein re-directed radiation from the specimen is allowed into the annular meso-optic by the secondary optical structure if an angle of incidence of the re-directed radiation exceeds the angle of Total Internal Reflectance. Other embodiments are descried and claimed.

    Abstract translation: 一个实施例提供了一种环形光学装置,其包括:具有基本三角形横截面并且包括以旋转轴为中心的环的环形中视光学器件; 以及在所述环形介质光学器件的环形空间内基本同轴的次级光学结构,其中所述次级光学结构和所述环形中视光学器件被包括介质折射率低于第二光学结构折射率的介质分开, 所述辅助光学结构被配置为通过基本上沿着所述旋转轴线照射被引导到所述次级光学结构中的电磁辐射来保持要辐射的样本,其中来自所述样本的重新定向的辐射通过所述次级光学被允许进入所述环形中视镜 结构,如果重新引导的辐射的入射角超过内部反射率的总和。 描述并要求保护其他实施例。

    Low slope pH electrode with charge transfer component
    226.
    发明授权
    Low slope pH electrode with charge transfer component 有权
    具有电荷转移组分的低斜率pH电极

    公开(公告)号:US09274076B2

    公开(公告)日:2016-03-01

    申请号:US13832685

    申请日:2013-03-15

    Applicant: Hach Company

    Inventor: Karl Lewis King

    Abstract: An aspect includes a low slope electrode device, including: at least one electrode; at least one container at least partially enclosing the at least one electrode and having at least one ion sensitive region; an external buffer container having at least one separating element that separates said at least one ion sensitive region into: a first ion sensitive area separating an internal buffer solution bathing the at least one electrode and an external sample solution; and a second ion sensitive area separating the internal buffer solution bathing the at least one electrode and an external buffer solution; wherein the at least one separating element, the first ion sensitive area, and the second ion sensitive area establish a charge flow circuit. Other aspects are described and claimed.

    Abstract translation: 一个方面包括一个低斜率电极装置,包括:至少一个电极; 至少一个至少部分地包围所述至少一个电极并具有至少一个离子敏感区域的容器; 外部缓冲容器,其具有至少一个将所述至少一个离子敏感区域分离成的分离元件,所述至少一个分离元件分离成洗涤所述至少一个电极的内部缓冲溶液和外部样品溶液的第一离子敏感区域; 以及第二离子敏感区域,分离洗涤所述至少一个电极和外部缓冲溶液的内部缓冲溶液; 其中所述至少一个分离元件,所述第一离子敏感区域和所述第二离子敏感区域建立充电流回路。 描述和要求保护其他方面。

    ANNULAR OPTICAL DEVICE
    228.
    发明申请
    ANNULAR OPTICAL DEVICE 有权
    环形光学器件

    公开(公告)号:US20150260970A1

    公开(公告)日:2015-09-17

    申请号:US14215503

    申请日:2014-03-17

    Applicant: HACH COMPANY

    Inventor: Perry A. Palumbo

    Abstract: One embodiment provides an annular optical device, comprising: an annular meso-optic having a substantially triangular cross section and including an annulus centered about an axis of revolution; and a secondary optical structure substantially coaxial within the annulus of the annular meso-optic, wherein the secondary optical structure and the annular meso-optic are separated by a media comprising a media refractive index that is lower than a secondary optical structure refractive index, with the secondary optical structure being configured to hold a specimen to be radiated by impinging electromagnetic radiation directed into the secondary optical structure substantially along the axis of revolution, wherein re-directed radiation from the specimen is allowed into the annular meso-optic by the secondary optical structure if an angle of incidence of the re-directed radiation exceeds the angle of Total Internal Reflectance. Other embodiments are descried and claimed.

    Abstract translation: 一个实施例提供了一种环形光学装置,其包括:具有基本三角形横截面并且包括以旋转轴为中心的环的环形中视光学器件; 以及在所述环形介质光学器件的环形空间内基本同轴的次级光学结构,其中所述次级光学结构和所述环形中视光学器件被包括介质折射率低于第二光学结构折射率的介质分开, 所述辅助光学结构被配置为通过基本上沿着所述旋转轴线照射被引导到所述次级光学结构中的电磁辐射来保持要辐射的样本,其中来自所述样本的重新定向的辐射通过所述次级光学被允许进入所述环形中视镜 结构,如果重新引导的辐射的入射角超过内部反射率的总和。 描述并要求保护其他实施例。

    WATER MONITORING SYSTEM
    229.
    发明申请
    WATER MONITORING SYSTEM 审中-公开
    水监测系统

    公开(公告)号:US20150219612A1

    公开(公告)日:2015-08-06

    申请号:US14687985

    申请日:2015-04-16

    Applicant: Hach Company

    Inventor: Thomas D. Wolfe

    Abstract: An Anti-Terrorism water quality monitoring system for continuously monitoring a potable water treatment system and related potable water distribution network that provides potable water to a municipality, city, housing development or other potable water consumer. The system includes the collection of data from the water distribution system and from the water treatment facility and from advanced separation processes which are integrated into analytical instruments. The data collected are stored in a remote database on a remote server computer or bank of computers and accessible by Homeland Security or its designated agency. Preferred parameters of monitoring include the turbidity and disinfectant such as chlorine, hypochlorous acid, sodium hypochlorite, calcium hypochlorite, ozone, chlorine dioxide, chloramines, hydrogen peroxide, peracetic acid.

    Abstract translation: 一个反恐水质监测系统,用于连续监测饮用水处理系统和相关饮用水分配网络,向市,市,住房开发或其他饮用水消费者提供饮用水。 该系统包括从配水系统和水处理设备以及集成到分析仪器中的先进分离过程中收集数据。 收集的数据存储在远程服务器计算机或计算机银行的远程数据库中,可由国土安全部或其指定机构访问。 监测的优选参数包括浊度和消毒剂如氯,次氯酸,次氯酸钠,次氯酸钙,臭氧,二氧化氯,氯胺,过氧化氢,过乙酸。

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