Abstract: A preparative liquid chromatograph includes a liquid feeding pump (2) that feeds a mobile phase, an injector (4) that injects a sample into the mobile phase at a downstream of the liquid feeding pump (2), a separation column (6) for separating components in the sample injected into the mobile phase by the injector (4) at a downstream of the injector (4), and an eluate fractionator (8) configured to divide a flow of the eluate from the separation column (6) into a flow of a minute flow rate and another flow at a downstream of the separation column (6) and to extract at least a part of an eluate that forms the flow of a minute flow rate into an fractionation container (22).

Abstract: A connection assembly for a chromatograph is used for connection to a flow path of the chromatograph, and includes a tube, a housing and a ferrule. The housing has an opening into which an end portion of the tube forming the flow path is insertable. The ferrule is formed of resin having chemical resistance and holds the tube in the opening of the housing while surrounding the tube. The ferrule has an inner peripheral surface coming into contact with the tube and an outer peripheral surface coming into contact with the housing. The friction coefficient between the inner peripheral surface of the ferrule and the tube, and the friction coefficient between the outer peripheral surface and the housing are equal to or larger than 0.3.

Abstract: A structure of a flow cell assembly for a chromatography detector is used to generate a chromatograph of a sample, and includes a capillary extending in one direction, a housing that houses at least part of the capillary and a ferrule that holds the capillary in the housing. The capillary includes an inner tube formed of a material having a refractive index lower than that of water, and an outer tube formed of a material having strength higher than that of the material of the inner tube and has an outer diameter that is equal to or smaller than 5 mm. An outer peripheral surface of the inner tube and an inner peripheral surface of the outer tube adhere to each other, and a flow path through which a mobile phase including a sample flows is formed in the inner tube.

Abstract: An ion analyzer 1 including: a first member 16 fixed to an ion outflow port and provided with a fixing pin 1621 on one side and a pin hole 1631 on the other side sandwiching the ion outflow port; a second member 12 to be fixed to the first member and including an ion flow controller 121 configured to control movement of ions flowing out from the ion outflow port, the second member having a first concave part 1231 configured to engage with the fixing pin from a first direction perpendicular to an axis of the fixing pin, and a second concave part 1241 configured to engage with an insertion pin to be inserted into the pin hole from a second direction different from the first direction; and a pin member 17 having an insertion pin 172 inserted into the pin hole and a head part 171 configured to sandwich and fix the second concave part with the first member.

Abstract: A preparative liquid chromatograph includes a liquid feeding pump (2) that feeds a mobile phase, an injector (4) that injects a sample into the mobile phase at a downstream of the liquid feeding pump (2), a separation column (6) for separating components in the sample injected into the mobile phase by the injector (4) at a downstream of the injector (4), and an eluate fractionator (8) configured to divide a flow of the eluate from the separation column (6) into a flow of a minute flow rate and another flow at a downstream of the separation column (6) and to extract at least a part of an eluate that forms the flow of a minute flow rate into an fractionation container (22).

Abstract: A structure of a flow cell assembly for a chromatography detector is used to generate a chromatograph of a sample, and includes a capillary extending in one direction, a housing that houses at least part of the capillary and a ferrule that holds the capillary in the housing. The capillary includes an inner tube formed of a material having a refractive index lower than that of water, and an outer tube formed of a material having strength higher than that of the material of the inner tube and has an outer diameter that is equal to or smaller than 5 mm. An outer peripheral surface of the inner tube and an inner peripheral surface of the outer tube adhere to each other, and a flow path through which a mobile phase including a sample flows is formed in the inner tube.

Abstract: A connection assembly for a chromatograph is used for connection to a flow path of the chromatograph, and includes a tube, a housing and a ferrule. The housing has an opening into which an end portion of the tube forming the flow path is insertable. The ferrule is formed of resin having chemical resistance and holds the tube in the opening of the housing while surrounding the tube. The ferrule has an inner peripheral surface coming into contact with the tube and an outer peripheral surface coming into contact with the housing. The friction coefficient between the inner peripheral surface of the ferrule and the tube, and the friction coefficient between the outer peripheral surface and the housing are equal to or larger than 0.3.