Abstract: An object of the present invention is to prevent lowering of introduction efficiency of ions and to reduce labor for a cleaning operation. In order to solve the above problems, the present invention provides a mass spectrometer where ion introduction hole of an electrode is divided into a first region, a second region, and a third region, a central axis direction of the ion introduction hole in both or either one of the first region and the third region is different from a flow direction axis of the ion inside the ion introduction hole in the second region, and axes of the ion introduction hole in the first region and the third region are in an eccentric position relationship.

Abstract: This mass spectrometer is provided with an ion guide (37) having a multipole rod electrode (1), a power source unit (5) for applying voltage to the multipole rod electrode, and a control unit for controlling the power source unit, said mass spectrometer being characterised by the multipole rod electrode having a rod electrode divided into a plurality of segmented rods (2A-1, 2A-2, 2B-1, 2B-2, 2C-1, 2C-2, 2D-1, 2D-2) at mutually different positions in the axial direction. Thus enabled is low-cost, high-throughput analysis.

Abstract: In an ion mobility separation device, there are problems that while arraying of separation electrodes and flow paths is restricted, time required for scanning correction voltages becomes longer and the throughput is reduced when the correction voltages are set in detail. These problems are solved for example by the following means.

Abstract: In order to achieve an ionization method of high robustness with a small carry-over or less crosstalk, an ionization method is disclosed. A method includes the steps of: joining an ionization unit to a tube; sucking the sample from a sample container into a sample holder of the ionization unit to hold the sample; moving the ionization unit holding the sample to near the ionization unit using an ionization unit drive unit; and applying a voltage to the ionization unit using a power supply to ionize the sample by electrostatically spraying the sample from the holding unit.

Abstract: The quantitative accuracy of analysis is improved without reducing the dynamic range for measurement of concentrations by performing stable ionization through electrospray or the like which repeats sampling and ionization using a movable probe electrode. A voltage is applied from a high-voltage power source 4 to a sample transport electrode 7 having a plurality of probe electrodes 1 and a driving section 3 drives the sample transport electrode 7 to rotate. The plurality of probe electrodes 1, to which a sample solution 5 is adhered, are sequentially transported to an inlet 21 of a mass spectrometer 20, thus electrospray ionization is continuously performed.

Abstract: An object of the present invention is to prevent lowering of introduction efficiency of ions and to reduce labor for a cleaning operation. In order to solve the above problems, the present invention provides a mass spectrometer where ion introduction hole of an electrode is divided into a first region, a second region, and a third region, a central axis direction of the ion introduction hole in both or either one of the first region and the third region is different from a flow direction axis of the ion inside the ion introduction hole in the second region, and axes of the ion introduction hole in the first region and the third region are in an eccentric position relationship.

Abstract: A mass spectrometer possessing both high resolution and durability in a simple, compact structure compared to mass spectrometers of the related art, and characterized in possessing a linear ion trap unit containing a multipolar rod electrode including rod electrodes having fine orifices to allow passage of electrons or ions; a mechanism to move the ions inside the linear ion trap unit along the axis of the multipolar rod electrode; and a detector to selectively detect by mass, ions ejected from the linear ion trap unit.

Abstract: A lifesaving support apparatus includes: a sensor section which is adapted to be attachable to a patient, and which is configured to acquire information of blood flow of the patient; a determining section which, based on the information of blood flow, is configured to determine whether or not a use of an automatic external defibrillator is necessary; and an outputting section which is configured to notify a rescuer of information which is determined by the determining section.

Abstract: A mass spectrometric device of the present invention includes a quadrupole filter (12) located upstream of a quadrupole ion trap (13) and configured to transmit ions in a predetermined filter range, and determines the filter range of the quadrupole filter (12) such that accumulation time for the ions in the quadrupole ion trap (13) is maximized. The accumulation time for the ions is determined based on mass spectrometry data information. With this configuration, the present invention produces advantageous effects of improving analysis throughput and an S/N ratio in an analysis of a minor sample component mixed in various accompanying components by using the mass spectrometric device using the quadrupole ion trap.

Abstract: The quantitative accuracy of analysis is improved without reducing the dynamic range for measurement of concentrations by performing stable ionization through electrospray or the like which repeats sampling and ionization using a movable probe electrode. A voltage is applied from a high-voltage power source 4 to a sample transport electrode 7 having a plurality of probe electrodes 1 and a driving section 3 drives the sample transport electrode 7 to rotate. The plurality of probe electrodes 1, to which a sample solution 5 is adhered, are sequentially transported to an inlet 21 of a mass spectrometer 20, thus electrospray ionization is continuously performed.

Abstract: This mass spectrometer is provided with an ion guide (37) having a multipole rod electrode (1), a power source unit (5) for applying voltage to the multipole rod electrode, and a control unit for controlling the power source unit, said mass spectrometer being characterised by the multipole rod electrode having a rod electrode divided into a plurality of segmented rods (2A-1, 2A-2, 2B-1, 2B-2, 2C-1, 2C-2, 2D-1, 2D-2) at mutually different positions in the axial direction. Thus enabled is low-cost, high-throughput analysis.

Abstract: A mass spectrometer possessing both high resolution and durability in a simple, compact structure compared to mass spectrometers of the related art, and characterized in possessing a linear ion trap unit containing a multipolar rod electrode including rod electrodes having fine orifices to allow passage of electrons or ions; a mechanism to move the ions inside the linear ion trap unit along the axis of the multipolar rod electrode; and a detector to selectively detect by mass, ions ejected from the linear ion trap unit.

Abstract: A separator for a fuel cell includes a metal separator (metal substrate) having projections formed by ribs, and porous members provided in a plurality of flow passages partitioned by the projections, in which a hydrophilic portion is provided in a center part of a cross section orthogonal to a flow direction in the porous member, and a water repellent portion is provided in at least a part of portions in contact with wall surfaces of the flow passage within a range of the cross section. According to the present invention, the mixed phase flow in which the reaction gas and the cooling water inside the flow passages are mixed can be made an even flow in the separator in which the porous members are provided in the gas flow passages.

Abstract: Plurality of current mirror circuits CM1 to CM5 at which the same amount of current I1 flows in the circuits. Transistors Qa4/Qb5 are ON state when it is in the steady state. Transistors Qa5/Qb7 turn ON and transistors Qb6/Qa6 turn OFF when a voltage generation circuit 3 applies a voltage more than predetermined value V12 to node N3. Therefore node N3 becomes fixed voltage V12. On the other hand, voltage generation circuit 3 applies a voltage less than predetermined value V23 to node N3, transistors Qb5/Qa6 turn ON, and transistors Qa5/Qb7 turn OFF. Accordingly, the node N3 becomes fixed voltage V23.

Abstract: A mass spectrometric device of the present invention includes a quadrupole filter (12) located upstream of a quadrupole ion trap (13) and configured to transmit ions in a predetermined filter range, and determines the filter range of the quadrupole filter (12) such that accumulation time for the ions in the quadrupole ion trap (13) is maximized. The accumulation time for the ions is determined based on mass spectrometry data information. With this configuration, the present invention produces advantageous effects of improving analysis throughput and an S/N ratio in an analysis of a minor sample component mixed in various accompanying components by using the mass spectrometric device using the quadrupole ion trap.

Abstract: An electron capture dissociation device to implement a combination of electron capture dissociation and collision dissociation and a mass spectrometer with the use thereof are provided. This device includes a linear ion trap provided with linear multipole electrodes applied with a radio frequency electric field and wall electrodes that are arranged on both ends in the axis direction of the linear multipole electrodes, have holes on the central axis thereof, and generate a wall electric field by being applied with a direct-current voltage, a cylindrical magnetic field-generating unit that generates a magnetic field parallel to the central axis of the linear multipole electrodes and surrounds the linear ion trap, and an electron source arranged opposite to the linear multipole electrodes with sandwiching one of the wall electrodes. The electron generation site of the electron source is placed in the inside of the magnetic field generated by the magnetic field-generating unit.

Abstract: A charged particle reaction cell of the present invention has a serially-arranged plurality of ring electrodes, wherein a modulated radio frequency voltage obtained by modulating the amplitude of a radio frequency voltage is applied, whereby ions are captured at the bottom of the ups and downs of a formed pseudopotential and are transferred with the move of the pseudopotential. In the charged particle reaction cell, the time required for the charged particle reaction can be secured and also the problem of the decrease of the throughput or the mass resolution can be solved, and the speed of the structure analysis of a measurement sample can be accelerated.

Abstract: A mass spectrometer includes a linear multipole electrode, an auxiliary electrode that applies a DC potential on the center axis of the linear multipole electrode, and a DC power supply that supplies a DC power to the auxiliary electrode. The DC potential slope formed on the center axis of the multipole electrode is changed according to the measuring condition. The ejection time of ions can be adjusted optimally by adjusting the potential slope so as to satisfy the measuring condition. If the ejection time of ions is shortened, confusion of different ion information items that might otherwise occur on a spectrum can be avoided. If the ejection time of ions is lengthened, detection limit exceeding can be avoided and ions can be measured efficiently, thereby highly efficient ion measurements are always assured.

Abstract: When a high-speed analyzer such as a quadrupole mass filter is united with an analyzer which requires a reaction time of 10 msec, such as an ion dissociation chamber of the ion trap type, a problem arises that an ion loss occurs due to a difference in analysis speed between the analyzers. A high-throughput analysis is intended to be achieved by eliminating this loss. A pre ion trap (4) is provided between a quadrupole filter (3) and an ion dissociation chamber (5), and ions are accumulated in the pre ion trap (4) while operations such as dissociation, isolation and ejection are being performed in the ion dissociation chamber (5). This configuration solves a problem with the ion dissociation chamber (5), which is a decrease in transmittance of the dissociation chamber (5), i.e., a decrease in throughput, and accordingly enables a high-throughput structural analysis on a measurement sample.

Abstract: The object of the present invention is to provide a bipolar plate for a fuel cell, suppressing the stay of condensed water in a gas diffusion layer and improving gas diffusion performance. The bipolar plate supplies reaction gas to a power generating surface and has a channel for the reaction gas. The channel is formed with ribs which are made of a conductive material laminate. The ribs have a porous structure and water repellency. The water repellency of the ribs is set lower than that of an adjacent gas diffusion layer. Thus, the condensed water can be moved from the gas diffusion layer to the ribs in an area where the gas diffusion layer and the ribs are in contact with each other. Therefore, deterioration of the gas diffusion performance due to the stay of the condensed water in the gas diffusion layer can be prevented.