Abstract: To provide an automatic analyzer with improved workability when a flow cell is loaded and unloaded. The automatic analyzer includes: a photomultiplier tube; a board disposed vertically below the photomultiplier tube; and a flow cell disposed vertically below the board. A lower surface of the board has a protrusion portion and/or a recess portion, and an upper surface of the flow cell has a recess portion and/or a protrusion portion. The automatic analyzer includes a pressing member configured to press the flow cell vertically upward from below in a state in which the recess portion and/or the protrusion portion of the flow cell is fitted to the protrusion portion and/or the recess portion of the board.

Abstract: A sample analyzer includes a channel configured to introduce a sample liquid containing magnetic particles bound to a specific substance into a capturing region, a supply unit configured to supply the sample liquid to the channel, a capturing unit having a magnetic field structure for generating a magnetic field and configured to adsorb the magnetic particles to the capturing region by the magnetic field, a measurement unit configured to measure the specific substance captured to the capturing region, and a discharge unit configured to discharge the magnetic particles from the channel after measurement by the measurement unit. The magnetic field structure includes a plurality of magnets arranged outside the channel and having different magnetization directions, and the plurality of magnets are arranged so as to make the magnetic flux density on a channel side larger than that on a side facing the channel.

Abstract: To provide an automatic analyzer with improved workability when a flow cell is loaded and unloaded. The automatic analyzer includes: a photomultiplier tube; a board disposed vertically below the photomultiplier tube; and a flow cell disposed vertically below the board. A lower surface of the board has a protrusion portion and/or a recess portion, and an upper surface of the flow cell has a recess portion and/or a protrusion portion. The automatic analyzer includes a pressing member configured to press the flow cell vertically upward from below in a state in which the recess portion and/or the protrusion portion of the flow cell is fitted to the protrusion portion and/or the recess portion of the board.

Abstract: Provided is an automatic analyzer that improves workability when carrying in and out a flow cell. A flow cell that allows a reaction liquid including a specimen and a reagent to pass, a photodetector for detecting light emitted by the reaction liquid, and a housing for housing the flow cell and the photodetector are included, in which the housing includes a lid that opens and closes when the flow cell is carried in and out of the housing, the lid is connected to the housing via a hinge, and a fixing member for fixing the lid in a closed state is provided on the lid or the housing.

Abstract: Provided are a flow cell and an automatic analysis device which are excellent in the long-term stability of the flow path shape of the flow cell and can improve the reproducibility of analysis. The flow cell (6) of the present invention includes a base (18) including an inlet and outlet (35, 36) for a flow path of a reaction solution containing an analyte; an electrode (16A, 16B) for applying a voltage to the analyte; a light receiving window (22) made of a member that transmits light emitted from the analyte by the voltage applied on the electrode, a gasket (18A) provided between the base (18) and the light receiving window (22), and a flow chamber (17) surrounded by the base (18), the light receiving window (22) and the gasket (18A), in which the gasket (18A) has a deformation amount of 0 mm or more and 0.

Abstract: A flow cell for electrochemical measurement which introduces a sample solution, applies a voltage between a working electrode and a counter electrode to analyze the sample solution electrochemically, discharges the sample solution, and performs the electrochemical measurement continuously. The flow cell includes a unit which measures a value of a current flowing between electrodes at the time of applying a voltage, a unit which records the measured current value, a unit which compares the recorded current value with a current value set separately as a determination standard, and a unit which determines whether the current value measured at a cycle of a determination target and the recorded current value is normal by the comparison.

Abstract: Provided are an electrode, an electrolysis cell, and an electrochemical analyzer that improve the long-term stability of analysis data. A working electrode, a counter electrode, and reference electrode are disposed in an electrolysis cell. The working electrode is obtained by forming a lead wire in a composite material having platinum or a platinum alloy as a base material, in which a metal oxide is dispersed, or in a laminated material obtained by laminating a valve metal and platinum such that the cross sectional crystal texture in the thickness direction of the platinum is formed in layers and the thickness of each layer of the platinum is 5 micrometers or less. The metal oxide is selected from among zirconium oxide, tantalum oxide, and niobium oxide, and the metal oxide content of the platinum or the platinum alloy is 0.005 to 1 wt % in terms of the zirconium, tantalum, or niobium metal.

Abstract: Provided are an electrode, an electrolysis cell, and an electrochemical analyzer that improve the long-term stability of analysis data. A working electrode, a counter electrode, and reference electrode are disposed in an electrolysis cell. The working electrode is obtained by forming a lead wire in a composite material having platinum or a platinum alloy as a base material, in which a metal oxide is dispersed, or in a laminated material obtained by laminating a valve metal and platinum such that the cross sectional crystal texture in the thickness direction of the platinum is formed in layers and the thickness of each layer of the platinum is 5 micrometers or less. The metal oxide is selected from among zirconium oxide, tantalum oxide, and niobium oxide, and the metal oxide content of the platinum or the platinum alloy is 0.005 to 1 wt % in terms of the zirconium, tantalum, or niobium metal.

Abstract: Provided are an electrode, an electrolysis cell, and an electrochemical analyzer that improve the long-term stability of analysis data. A working electrode, a counter electrode, and reference electrode are disposed in an electrolysis cell. The working electrode is obtained by forming a lead wire in a composite material having platinum or a platinum alloy as a base material, in which a metal oxide is dispersed, or in a laminated material obtained by laminating a valve metal and platinum such that the cross sectional crystal texture in the thickness direction of the platinum is formed in layers and the thickness of each layer of the platinum is 5 micrometers or less. The metal oxide is selected from among zirconium oxide, tantalum oxide, and niobium oxide, and the metal oxide content of the platinum or the platinum alloy is 0.005 to 1 wt % in terms of the zirconium, tantalum, or niobium metal.

Abstract: A flow cell for electrochemical measurement which introduces a sample solution, applies a voltage between a working electrode and a counter electrode to analyze the sample solution electrochemically, discharges the sample solution, and performs the electrochemical measurement continuously. The flow cell includes a unit which measures a value of a current flowing between electrodes at the time of applying a voltage, a unit which records the measured current value, a unit which compares the recorded current value with a current value set separately as a determination standard, and a unit which determines whether the current value measured at a cycle of a determination target and the recorded current value is normal by the comparison.

Abstract: Provided are an electrode, an electrolysis cell, and an electrochemical analyzer that improve the long-term stability of analysis data. A working electrode, a counter electrode, and reference electrode are disposed in an electrolysis cell. The working electrode is obtained by forming a lead wire in a composite material having platinum or a platinum alloy as a base material, in which a metal oxide is dispersed, or in a laminated material obtained by laminating a valve metal and platinum such that the cross sectional crystal texture in the thickness direction of the platinum is formed in layers and the thickness of each layer of the platinum is 5 micrometers or less. The metal oxide is selected from among zirconium oxide, tantalum oxide, and niobium oxide, and the metal oxide content of the platinum or the platinum alloy is 0.005 to 1 wt % in terms of the zirconium, tantalum, or niobium metal.