ELECTROCHEMICAL DEPOSITION AND X-RAY FLUORESCENCE SPECTROSCOPY
    92.
    发明公开
    ELECTROCHEMICAL DEPOSITION AND X-RAY FLUORESCENCE SPECTROSCOPY 审中-公开
    电化学分离和X射线荧光光谱

    公开(公告)号:EP2885632A1

    公开(公告)日:2015-06-24

    申请号:EP13753295.8

    申请日:2013-08-09

    Abstract: an x-ray fluorescence spectrometer (52); and a sample holder (2) for the x-ray fluorescence (XRF) spectrometer (52), wherein the sample holder (2) comprises: an electrically conductive synthetic diamond electrode (4) providing a front surface (6) on which chemical species can be electro- deposited from a solution (48) comprising the chemical species; an ohmic contact (8) disposed on a rear surface of the electrically conductive synthetic diamond electrode (4); and an electrical connector (10) which is connected to the ohmic contact (8), and wherein the x-ray fluorescence spectrometer (52) comprises: an XRF sample stage (58) configured to receive the sample holder (2); an x-ray source (54) configured to apply an x-ray excitation beam to the chemical species electro-deposited on the electrically conductive synthetic diamond electrode (4) when the sample holder (2) is mounted to the XRF sample stage (58); an x-ray detector (60) configured to receive x-rays emitted from the chemical species electro-deposited on the front surface (6) of the electrically conductive synthetic diamond material when the sample holder (2) is mounted to the XRF sample stage (58); and a processor (62) configured to generate x-ray fluorescence spectroscopic data based on the x-rays received by the x-ray detector. Such system allows to carry out simultaneously and in-situ stripping voltammetry measurements together with X-ray fluorescence measurements.

    ELECTROCHEMICAL SENSOR WITH DIAMOND ELECTRODES
    93.
    发明公开
    ELECTROCHEMICAL SENSOR WITH DIAMOND ELECTRODES 审中-公开
    与金刚石电极电化学传感器

    公开(公告)号:EP2710356A1

    公开(公告)日:2014-03-26

    申请号:EP12717330.0

    申请日:2012-05-02

    CPC classification number: G01N27/4163 G01N21/75 G01N27/308 G01N27/48

    Abstract: An electrochemical sensor comprising: a reference electrode (4) formed of an electrically conductive synthetic doped diamond material and configured to be located in electrical contact with a solution (8) to be analysed; a sensing electrode (2) formed of an electrically conductive synthetic doped diamond material and configured to be located in contact with the solution (8) to be analysed; an electrical controller (10) configured to conduct stripping voltammetric measurements by applying a voltage to the sensing electrode (2), to change the applied voltage relative to the reference electrode (4), and to measure an electric current flowing through the sensing electrode (2) thereby generating voltammetry data; and a calibration system configured to provide an in- situ calibration for providing a reference point in the voltammetric data since the potential of the diamond reference electrode is non fixed and floating. Consequently, assigning of peaks (M1, M2, M3) in the voltammetry data to chemical species (M1, M2, M3) is possible, thereby allowing the type and concentration of chemical species in the solution (8) to be determined. The in-situ calibration consists of: 1 - using a spectrometer for X-rays, Gamma rays or fluorescence measurements integrated in the sensor, 2 - using a known redox couple added to the solution that will provide a reference peak in the voltammetric data, or 3 - producing in-situ ionic species at the vicinity of the reference electrode.

    METHOD, SYSTEM AND SOFTWARE APPLICATION FOR ELECTROCHEMICAL ANALYSIS
    97.
    发明授权
    METHOD, SYSTEM AND SOFTWARE APPLICATION FOR ELECTROCHEMICAL ANALYSIS 有权
    方法,系统和软件应用用于电化学分析

    公开(公告)号:EP1846755B1

    公开(公告)日:2011-09-21

    申请号:EP06720424.8

    申请日:2006-02-06

    CPC classification number: G01N27/49 G01N27/404

    Abstract: The invention is a method, system and software application for electrochemical analysis of analytes in a solution. In one aspect of the invention, raw data is received from an electrochemical analysis and the raw data is analyzed. The analyzed data and the raw data are displayed. The electrochmical analysis is performed by applying one or more time-sequenced voltage waveforms in the soution and measuring the resulting current in the solution. In one aspect of the invention, the raw data is received from the electrochemical analysis wherein the raw data is representative of the measured current parameters. The raw data may be integrated based on one or more integartion time intervals, and the raw data may be displayed in one or more three dimensional plots. The integrated data and the raw data may also be displayed in one or more two-dimensional plots. The raw data is stored for three dimensional displays and the integrated data is stored for two dimensional displays. Baseline correction is performed on the raw data and the baseline corrected data is displayed in one or more three dimensional plots and in one or more two dimensional plots. The raw data is transmitted and stored at a rate between 100 Hz and 10 KHz.

    Apparatus for measuring calcium oxalate scaling
    98.
    发明公开
    Apparatus for measuring calcium oxalate scaling 审中-公开
    用于测量草酸钙结垢的设备

    公开(公告)号:EP2058654A1

    公开(公告)日:2009-05-13

    申请号:EP09152953.7

    申请日:2001-02-23

    Abstract: The invention relates to an apparatus for measuring the calcium oxalate scale forming propensity of a continuously flowing solution having a pH of from 2 to 3 which comprises a quartz crystal microbalance having a top side comprising a working electrode for exposure to the solution and a bottom side isolated from the solution, wherein the working electrode is coated with or made of a conductive material on which the intensive evolution of hydrogen gas proceeds at potentials more negative than necessary to achieve a pH of 3.5-9 proximate to the microbalance.

    Abstract translation: 本发明涉及一种用于测量具有2至3的pH的连续流动溶液的草酸钙垢形成倾向的设备,该设备包括石英晶体微量天平,该石英晶体微量天平具有包括用于暴露于溶液的工作电极的顶侧和底侧 其中所述工作电极涂覆有导电材料或由导电材料制成,在所述导电材料上氢气的强烈放电在比实现接近微量天平的3.5-9的pH所需负电势更负的电位下进行。

    METHOD FOR MEASURING CALCIUM OXALATE SCALING
    99.
    发明授权
    METHOD FOR MEASURING CALCIUM OXALATE SCALING 有权
    测量水垢沉积的钙草酸盐法

    公开(公告)号:EP1266210B1

    公开(公告)日:2009-04-15

    申请号:EP01916179.3

    申请日:2001-02-23

    Abstract: This invention is directed to a method and apparatus for measuring the rate of calcium oxalate scale formation in a continuously flowing solution having a pH of from about 2 to about 3 comprising measuring the rate of deposition of calcium oxalate scale from the solution on to a quartz crystal microbalance having a top side and a second, bottom side isolated from the solution, wherein the pH of the solution proximate to the microbalance is measured using a pH measuring module and is controlled electrochemically at from about 3.5 to about 9 and wherein the working electrode (23) is coated with or made of a conductive material on which the intensive evolution of hydrogen gas proceeds at potentials more negative than those necessary to achieve a pH of 3.5-9 proximate to the microbalance (2).

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