公开(公告)号：EP2885631A1

公开(公告)日：2015-06-24

申请号：EP13753294.1

申请日：2013-08-09

申请人： Element Six Limited

发明人： NEWTON, Mark Edward ,  MACPHERSON, Julie Victoria ,  MOLLART, Timothy Peter

IPC分类号： G01N23/223 ,  G01N27/42 ,  G01N27/48 ,  G01N27/30 ,  G01N27/49

CPC分类号： G01N27/42 ,  G01N23/223 ,  G01N27/27 ,  G01N27/30 ,  G01N27/305 ,  G01N27/308 ,  G01N27/38 ,  G01N27/48 ,  G01N27/49 ,  G01N2223/076

摘要： A sensor comprising: a first electrode formed of an electrically conductive material and configured to be located in contact which a solution to be analysed; a second electrode configured to be in electrical contact with the solution to be analysed; an electrical controller configured to apply a potential difference between the first and second electrodes to electro-deposit chemical species from the solution onto the first electrode, and an x-ray fluorescence spectrometer configured to perform an x-ray fluorescence spectroscopic analysis technique on the electro-deposited chemical species, the x-ray fluorescence spectrometer comprising an x-ray source configured to direct an x-ray excitation beam to the electro-deposited chemical species on the first electrode and an x-ray detector configured to receive x-rays emitted from the electro-deposited chemical species and generate spectroscopic data about the chemical species electro-deposited on the first electrode, wherein the sensor is configured such that in use the x-ray excitation beam incident on the electro-deposited chemical species on the first electrode is attenuated by no more than 60%.

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

申请人： Element Six Limited

发明人： NEWTON, Mark Edward ,  MACPHERSON, Julie Victoria ,  HUTTON, Laura Anne ,  MOLLART, Timothy Peter ,  SCARSBROOK, Geoffrey Alan

IPC分类号： G01N23/223 ,  G01N27/42 ,  G01N27/48

CPC分类号： G01N27/4163 ,  G01N21/75 ,  G01N27/308 ,  G01N27/48

摘要： 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.

公开(公告)号：EP2710357A1

公开(公告)日：2014-03-26

申请号：EP12720194.5

申请日：2012-05-11

申请人： Element Six Limited

发明人： NEWTON, Mark Edward ,  MACPHERSON, Julie Victoria ,  UNWIN, Patrick Robert ,  MOLLART, Timothy Peter

IPC分类号： G01N23/223 ,  G01N27/42 ,  G01N27/48

CPC分类号： G01N21/75 ,  C25D21/12 ,  G01N23/223 ,  G01N27/308 ,  G01N27/48 ,  G01N2223/076

摘要： A method of analyzing chemical species in a solution, the method comprising: providing an electrochemical deposition apparatus comprising a first electrode (2) formed of an electrically conductive diamond material and a second electrode (4); locating the first electrode in contact with a solution (8) to be analyzed and the second electrode in electrical contact with the solution to be analyzed; applying a potential difference between the first and second electrodes (2, 4) such that current flows between the first and second electrodes through the solution to be analyzed and chemical species are electro-deposited from the solution onto the first electrode; applying a spectroscopic analysis technique to the electro-deposited chemical species (M1, M2, M3) on the first electrode to generate spectroscopic data about the electro-deposited chemical species on the first electrode; and using the spectroscopic data to determine the type of chemical species electro-deposited on the first electrode. The spectroscopic analysis technique, which can be based on X-rays, fluorescent X-rays or gamma rays, is used in combination with stripping voltammetric measurement performed on the first electrode. The spectroscopic data can also be used in-situ calibration data for calibrating the reference potential used voltammetric measurements.

摘要翻译： 在溶液中分析的化学物质的方法，该方法包括：在电化学沉积设备提供包含形成的导电金刚石材料的第一电极（2）和第二（4）电极; 定位在接触所述第一电极与溶液（8）将被分析，并与要被分析的溶液电接触所述第二电极; 施加所述第一和第二电极之间的电位差（2,4）搜索通过该溶液做的第一和第二电极之间流过电流进行分析和化学物质是电沉积从溶液到第一电极; 应用光谱分析技术来在所述第一电极上的电沉积的化学物种（M1，M2，M3），以产生大约在第一电极上的电沉积的化学物质的光谱数据; 以及使用所述光谱数据确定性矿的化学物质的类型电沉积在第一电极上。 分光分析技术，其可以是基于X射线，荧光X射线或γ射线，结合使用汽提执行对第一电极伏安测量。 光谱数据因此可以在现场校准数据被用于校准的基准电位使用伏安测量。

公开(公告)号：EP2686672A1

公开(公告)日：2014-01-22

申请号：EP12708851.6

申请日：2012-03-15

申请人： Element Six Limited

发明人： MOLLART, Timothy Peter ,  SCARSBROOK, Geoffrey Alan ,  NEWTON, Mark Edward ,  MACPHERSON, Julie Victoria ,  UNWIN, Patrick Robert

IPC分类号： G01N27/30 ,  G01N33/00

CPC分类号： G01N27/308 ,  G01N33/0044

摘要： A diamond based electrochemical band sensor comprising: a diamond body; and a plurality of boron doped diamond band electrodes disposed within the diamond body, wherein at least a portion of each of the plurality of boron doped diamond band electrodes is doped with boron to a level suitable to achieve metallic conduction, the boron doped diamond electrodes being spaced apart by non-conductive intrinsic layers of diamond, wherein the diamond body comprises a front sensing surface with the plurality of boron doped diamond band electrodes being exposed at said sensing surface and extending in an elongate manner across said surface, and wherein each boron doped diamond electrode has a length/width ratio of at least 10 at the front sensing surface.

公开(公告)号：EP2002248A1

公开(公告)日：2008-12-17

申请号：EP07734015.6

申请日：2007-03-19

申请人： Element Six Limited

发明人： WHITEHEAD, Andrew John ,  SCARSBROOK, Geoffrey Alan ,  MACPHERSON, Julie Victoria ,  NEWTON, Mark ,  UNWIN, Patrick Robert ,  YOST III, William Joseph

IPC分类号： G01N27/30

CPC分类号： G01N27/308 ,  G01N27/307 ,  G01N33/0031

摘要： Microelectrode comprising a body formed from electrically non-conducting material and including at least one region of electrically conducting material and at least one passage extending through the body of non-conducting material and the region of conducting material, the electrically conducting region presenting an area of electrically conducting material to a fluid flowing through the passage in use. An electrochemical cell which includes such a microelectrode is also disclosed.