Abstract: An ion analysis device includes a sampling unit configured to sample condensate of exhaust gas flowing through an exhaust gas line in a fuel cell; and a sensor unit configured to measure an ion concentration of the condensate, in which the sampling unit is configured to sample the condensate of the exhaust gas from a first reservoir that is provided to the exhaust gas line and where the condensate of the exhaust gas is collected, or to sample the exhaust gas from the exhaust gas line and to collect condensate of the sampled exhaust gas in a second reservoir.

Abstract: A reference electrode according to the present invention maintains continuity between an internal solution and measurement sample and measures the electrical potential of the measurement sample even if the measurement sample in a liquid junction of the reference electrode has air bubbles mixed therein. This reference electrode is provided with: a second body provided with a second internal solution chamber in which a second internal solution is housed and a liquid junction portion disposed in the second internal solution chamber such that the second internal solution and measurement sample that is to be measured come into contact; and an internal electrode disposed inside the second internal solution. The liquid junction portion is formed from a conduction component formed from a porous or fibrous component and an aperture adjacent to the conduction component.

Abstract: A measuring instrument is capable of suppressing a flow path from being clogged due to the precipitation of crystals from an internal solution or a calibration liquid even when kept in a waiting state. The measuring instrument includes a measuring electrode and a reference electrode and on the basis of the potential difference generated therebetween, measures a characteristic value of a sample. In order to accomplish the above object, the measuring instrument is adapted to be able to have two states, i.e., a measurement state of measuring the characteristic value of the sample and a waiting state of not performing measurement, and further include a refilling mechanism that refills the calibration liquid or the internal solution used in the reference electrode. In addition, the refilling mechanism is adapted to continuously or intermittently refill the calibration liquid or the internal solution in the waiting state.

Abstract: A measuring electrode for chemical liquid in semiconductor process that measures a chemical liquid used for a semiconductor process comprises a first body having a first internal liquid chamber into which a first internal liquid is filled, and a flow tube for a part or all of which a responsive glass is used and that forms a flow channel where a chemical liquid as being a measuring object flows, wherein the flow tube is so arranged to penetrate the first body and the responsive glass makes contact with the first internal liquid in the first internal liquid chamber.

Abstract: A measuring electrode for chemical liquid in semiconductor process that measures a chemical liquid used for a semiconductor process comprises a first body having a first internal liquid chamber into which a first internal liquid is filled, and a flow tube for a part or all of which a responsive glass is used and that forms a flow channel where a chemical liquid as being a measuring object flows, wherein the flow tube is so arranged to penetrate the first body and the responsive glass makes contact with the first internal liquid in the first internal liquid chamber.

Abstract: In order to provide a reference electrode capable of suppressing an error in a measured value even when refilling an internal solution during sample measurement, a reference electrode including: a casing adapted to store the internal solution in an internal space; and an internal electrode that rises from the bottom surface of the internal space and is immersed in the internal solution further includes: a surrounding wall that rises from the bottom surface so as to surround the side circumferential surface of the internal electrode; and an inlet port that is for refilling the internal solution in the casing. In addition, in the reference electrode, the surrounding wall is adapted such that a fore end surface thereof is opened and the height thereof is higher than the height of the internal electrode, and the inlet port is adapted to be opened toward a space outside the surrounding wall.

Abstract: A measuring electrode for chemical liquid in semiconductor process that measures a chemical liquid used for a semiconductor process comprises a first body having a first internal liquid chamber into which a first internal liquid is filled, and a flow tube for a part or all of which a responsive glass is used and that forms a flow channel where a chemical liquid as being a measuring object flows, wherein the flow tube is so arranged to penetrate the first body and the responsive glass makes contact with the first internal liquid in the first internal liquid chamber.

Abstract: A measuring electrode for chemical liquid in semiconductor process that measures a chemical liquid used for a semiconductor process comprises a first body having a first internal liquid chamber into which a first internal liquid is filled, and a flow tube for a part or all of which a responsive glass is used and that forms a flow channel where a chemical liquid as being a measuring object flows, wherein the flow tube is so arranged to penetrate the first body and the responsive glass makes contact with the first internal liquid in the first internal liquid chamber.

Abstract: A measuring electrode for chemical liquid in semiconductor process that measures a chemical liquid used for a semiconductor process comprises a first body having a first internal liquid chamber into which a first internal liquid is filled, and a flow tube for a part or all of which a responsive glass is used and that forms a flow channel where a chemical liquid as being a measuring object flows, wherein the flow tube is so arranged to penetrate the first body and the responsive glass makes contact with the first internal liquid in the first internal liquid chamber.

Abstract: A reference electrode according to the present invention maintains continuity between an internal solution and measurement sample and measures the electrical potential of the measurement sample even if the measurement sample in a liquid junction of the reference electrode has air bubbles mixed therein. This reference electrode is provided with: a second body provided with a second internal solution chamber in which a second internal solution is housed and a liquid junction portion disposed in the second internal solution chamber such that the second internal solution and measurement sample that is to be measured come into contact; and an internal electrode disposed inside the second internal solution. The liquid junction portion is formed from a conduction component formed from a porous or fibrous component and an aperture adjacent to the conduction component.

Abstract: In order to provide a reference electrode capable of suppressing an error in a measured value even when refilling an internal solution during sample measurement, a reference electrode including: a casing adapted to store the internal solution in an internal space; and an internal electrode that rises from the bottom surface of the internal space and is immersed in the internal solution further includes: a surrounding wall that rises from the bottom surface so as to surround the side circumferential surface of the internal electrode; and an inlet port that is for refilling the internal solution in the casing. In addition, in the reference electrode, the surrounding wall is adapted such that a fore end surface thereof is opened and the height thereof is higher than the height of the internal electrode, and the inlet port is adapted to be opened toward a space outside the surrounding wall.

Abstract: A measuring instrument is capable of suppressing a flow path from being clogged due to the precipitation of crystals from an internal solution or a calibration liquid even when kept in a waiting state. The measuring instrument includes a measuring electrode and a reference electrode and on the basis of the potential difference generated therebetween, measures a characteristic value of a sample. In order to accomplish the above object, the measuring instrument is adapted to be able to have two states, i.e., a measurement state of measuring the characteristic value of the sample and a waiting state of not performing measurement, and further include a refilling mechanism that refills the calibration liquid or the internal solution used in the reference electrode. In addition, the refilling mechanism is adapted to continuously or intermittently refill the calibration liquid or the internal solution in the waiting state.

Abstract: A measuring electrode for chemical liquid in semiconductor process that measures a chemical liquid used for a semiconductor process comprises a first body having a first internal liquid chamber into which a first internal liquid is filled, and a flow tube for a part or all of which a responsive glass is used and that forms a flow channel where a chemical liquid as being a measuring object flows, wherein the flow tube is so arranged to penetrate the first body and the responsive glass makes contact with the first internal liquid in the first internal liquid chamber.

Abstract: Disclosed is a novel reagent for blood cell counting and a novel blood analysis method, which enable blood cells such as leukocytes to be counted with high accuracy by dissociating platelet aggregates in capillary blood collected from a living body. The reagent for blood cell counting is used to dilute capillary blood collected from a living body to prepare a blood sample in order to count blood cells in the collected capillary blood using a particle analyzer, and is an aqueous solution containing a chloroquine salt.

Abstract: An apparatus including a flow cell part having a flow channel where a sample solution containing the particles to be analyzed flows; a light irradiation device for irradiating an irradiation light as a beam light to a light irradiation point in the flow channel; and a light receiving device for detecting the light resulting from the irradiation of the beam light to the light irradiation point. The light irradiation device has a light source device and a beam-light-forming-film composed of an opaque film and a light transmitting hole formed in the film. Using the light transmitting hole, the cross sectional shape of the irradiation light is changed to that of the beam light, whereby optical apparatuses such as lens and the like on the irradiation side are omitted.

Abstract: A slide type liquid sample quantity determiner is provided that may enable the whole of a quantity determining flow path to be surely filled with a liquid sample, and also a quantity determination time to be shortened. An upstream side capillary flow path, a quantity determining capillary flow path, and a downstream side capillary flow path are reduced in diameter in this order. When a slide body is at a liquid sample quantity determination position X, an upstream side opening of the quantity determining capillary flow path is contained in a downstream side opening of the upstream side capillary flow path, and an upstream side opening of the downstream side capillary flow path is contained in a downstream side opening of the quantity determining capillary flow path.

Abstract: Disclosed is a novel reagent for blood cell counting and a novel blood analysis method, which enable blood cells such as leukocytes to be counted with high accuracy by dissociating platelet aggregates in capillary blood collected from a living body. The reagent for blood cell counting is used to dilute capillary blood collected from a living body to prepare a blood sample in order to count blood cells in the collected capillary blood using a particle analyzer, and is an aqueous solution containing a chloroquine salt.

Abstract: For a blood cell measuring part replaceably formed as a cartridge, a threshold value for determining particles is adjusted utilizing a specific parameter that observably varies according to the cross-sectional area of the aperture for use. In a first embodiment, the volume of the smallest frequency in the obtained volume-frequency distribution is used as a threshold value K1 specific to the cartridge for use. In second to fifth embodiments, the threshold values of pulse voltage height or pulse voltage width is adjusted based on the ratio of the voltage between electrodes specific to the cartridge or the ratio of the flow velocity of the sample liquid, every time the cartridge for use is replaced.

Abstract: The present invention is intended to, in a configuration in which a liquid container for analysis sealed by a sealing member is penetrated by a penetrating member, prevent the sealing member from being unexpectedly broken to leak a liquid for analysis. Also, the present invention has: a container holder part that holds a liquid container for analysis; a penetrating member that penetrates a sealing member of the liquid container for analysis; a first moving mechanism that enables the penetrating member to be moved between a hole making position and a receding position; and a second moving mechanism that enables the penetrating member moved to the hole making position by the first moving mechanism to be moved toward the sealing member to a penetrating position where the penetrating member penetrates the sealing member.

Abstract: The present invention removes an air bubble attaching to a detection part arranged in a concave portion on a wall surface in a flow path or an air bubble generated in the vicinity without requiring an external driving force, in a simple configuration. Specifically, the present invention includes: a liquid sample flow path for circulating a liquid sample; a detection part contained and arranged in a stepwise concave portion formed on an inner wall surface of the liquid sample flow path; and a projection part provided at a position facing to the stepwise concave portion on an inner wall surface of the liquid sample flow path, for generating a turbulent flow on a front side of an opening of the stepwise concave portion.