Abstract: A pH management system of a liquid chromatograph includes a pH meter that measures a pH value of a mobile phase in the liquid chromatograph, and a warner that presents a warning in a case where it is determined that a pH value measured in the pH meter is different from a set pH value, or that the pH value measured in the pH meter deviates from the set pH value and an error rate exceeds a predetermined error rate, when the pH value measured in the pH meter and the set pH are compared to each other.

Abstract: A liquid chromatograph includes a liquid sender (2) that sends a plurality of solvents, a mixer (6) that has an internal capacity for mixing the plurality of solvents sent by the liquid sender (2), a sample injector (10) that injects a sample into an analysis flow path (8) through which the solvents mixed in the mixer (6) flow as a mobile phase, a separation column (12) provided on the analysis flow path (10) for separating the sample injected by the sample injector (10) to each component, a detector (14) provided downstream of the separation column (12) on the analysis flow path (8) for detecting the components of the sample separated in the separation column (12), a capacity information storage medium (16) that is attached to the mixer (6) to store information as to the internal capacity of the mixer (6), and a capacity specifier (18) configured to read the information stored in the capacity information storage medium (16) to specify the internal capacity of the mixer (6).

Abstract: An actual supply data acquirer acquires, for a replaceable member with which a product is replaceably provided, actual supply data representing an actual result of shipment for replacement of the replaceable member in the product that is already sold and used. A determiner, using the actual supply data acquired by the actual supply data acquirer, determines whether an excess demand situation occurs in which demand for the replaceable member exceeds predetermined forecasted demand. A notification controller, when the determiner determines that the excess demand situation occurs, performs notification control to cause sending of notification indicating a possibility that an abnormality is occurring in quality of the product.

Abstract: When a flow path switch valve is in a first flow path state, an aqueous solvent supplied by an aqueous solvent supplier is guided to a first flow path, and a pH of the aqueous solvent is measured by a pH meter provided in the first flow path. When the flow path switch valve is in a second flow path state, the aqueous solvent supplied by the aqueous solvent supplier is guided to a second flow path. A sample to be analyzed is supplied by a sample supplier at a position farther downstream than the flow path switch valve. The solvent that has passed through the second flow path and the sample supplied by the sample supplier are guided to a separation column. The sample that has passed through the separation column is detected by a detector.

Abstract: A packing device for a printer is provided. The packing device includes: a first packing portion that has a mating portion; and a second packing portion that has a mating receptacle portion configured to mate with the mating portion by inserting at least a part of the mating portion into the mating receptacle portion; wherein at least one of the mating portion and the mating receptacle portion has a sloped surface that is inclined with respect to a first axis extending in a direction in which the mating portion and the mating receptacle portion mate.

Abstract: A controlling apparatus 2 for a liquid chromatograph 1 includes: a storage unit 200 configured to store a pH table T of information as to a mixed solution made of a plurality of solutions, the information including a relationship between a pH value of the mixed solution and types of the solutions to be mixed, concentrations of the solutions and a mixing ratio of the solutions; a display controlling section 211 configured to display some items of the information contained in the pH table T on a display device; and a specified composition condition receiving section 212 configured to receive a composition condition for a mixed solution to be used as a mobile phase in a liquid-chromatographic analysis specified by an operator.

Abstract: A chromatograph apparatus control device according to the present disclosure is a control device for controlling a chromatograph apparatus having the function of a liquid chromatograph and that of a supercritical fluid chromatograph. The control device includes a first-type method file creator configured to create a first-type method file describing a condition of an analysis by a liquid chromatograph; a second-type method file creator configured to create a second-type method file describing a condition of an analysis by a supercritical fluid chromatograph; and a batch file creator configured to create a single batch file including a plurality of records describing a group of method files including the first-type method file and the second-type method file, with one method file in each record.

Abstract: To reduce damage to a column caused during column switching when performing successive analyses while switching columns, provided is liquid chromatograph control system 70 for analyzing a sample according to a schedule table where analysis conditions and execution order of a plurality of analyses are described. Control system 70 includes: schedule reader 66 for reading out two consecutively executed analysis conditions; column comparator 67 for comparing columns used in the two analysis conditions; insertion method file creator for creating an insertion method file so that the flow rate of a mobile phase sent to the column used in later one of the two analyses is increased in stages toward a flow rate determined for the later analysis, where the columns are different between the two analysis conditions; and a schedule table creator 63 for inserting the insertion method file into immediately before the later analysis in the schedule table.

Abstract: The present invention aims at reducing the time required for a series of analyses in the sequential performance of gradient analyses under a variety of conditions. To this end, in a control apparatus for controlling the operation of a liquid chromatograph having a gradient analysis function in which a mobile phase composed of a plurality of mixed solvents is used and a chromatograph analysis is performed while the mixture ratio of the solvents is temporally changed, the liquid chromatograph is controlled so as to continuously change the mixture ratio of the solvents from an initial mixture ratio to a final mixture ratio when performing a sample analysis; and as to perform, before the sample analysis, a preparatory liquid supply in which the mixture ratio of the solvents is continuously changed from the initial mixture ratio to the final mixture ratio at a rate higher than that in the sample analysis.

Abstract: Provided is a chromatograph data processing system for presenting unexamined analysis conditions to a user in an easily understood manner when changing a plurality of analysis condition parameters. The system is used for a chromatograph for analyzing a sample according to a schedule table in which a plurality of analysis conditions and execution order of a plurality of analyses are described, each of the plurality of analysis conditions being defined by a combination of control parameter values. The system includes: memory 61 for storing a plurality of analysis conditions; unexamined analysis condition creator 66 for creating all combinations of values of control parameters included in the plurality of analysis conditions, and for creating a list of unexamined analysis conditions from the created combinations, the list being composed of analysis conditions that are not included in the plurality of analysis conditions stored in the memory 61; and display section 72.

Abstract: Provided is a liquid chromatograph control system for controlling an operation of a liquid chromatograph according to a method file containing a plurality of analysis parameters representing configuration items which determine operational conditions of the liquid chromatograph, including: a) a display section for displaying, for each of the analysis parameters, selectable values of the analysis parameter on a condition-setting screen; b) a grouping section for allowing a user to prepare grouping information for the values of the analysis parameter displayed on the condition-setting screen, the grouping information determining whether or not one value of one analysis parameter and one value of another analysis parameter can be included in one group; and c) a file-creating section for extracting, from the values of the analysis parameters, such values that can be included in one group according to the grouping information, and for creating a method file containing the extracted values.

Abstract: A liquid chromatograph analysis method and a liquid chromatograph minimize analysis time when performing analyses by switching columns and mobile phases. Liquid chromatograph 100 for performing a plurality of analyses according to a schedule table includes: mobile phase switching sections 15, 16 for switching a plurality of mobile phases to select a mobile phase to be used in analysis; column switching sections 31, 33 for switching a plurality of columns 32a-32f to select a column to be used in analysis; and control section 60 including memory 61 for storing an equilibration time of each of the plurality of columns 32a to 32f and an equilibration controller 66 for controlling column equilibration. If used columns or used mobile phases are different between two consecutively executed analyses, equilibration controller 66 equilibrates a column used in the later of the two analyses over an equilibration time read out from memory 61.

Abstract: In a laminated steel plate in which steel plates are joined to both faces of a core layer, the core layer is formed of a meshed wire group formed using wires in a mesh form and a resin sheet, the wires forming the meshed wire group have a tensile strength of 601 MPa or higher, and an opening of the meshed wire group is equal to or less than ten times the thickness of the steel plates. By thus defining the tensile strength of the wires, light-weightness can be achieved compatibly with high rigidity and shock resistance, and by defining the opening of the meshed wire group, workability and shape stability after being processed can be improved.

Abstract: Disclosed are a catalyst for producing, from an alcohol, an olefin whose number of carbon atoms is at least one more than the number of carbon atoms of the alcohol, wherein at least the surface of the catalyst is substantially composed of zirconium oxide; a method for producing an olefin using the same; and so on.

Abstract: A liquid chromatograph control system for controlling an operation of a liquid chromatograph which uses a mobile phase composed of a mixture of solvents and which has the function of performing a gradient analysis while temporally changing the mixture ratio of the solvents. The system initially requests a user to set a basic gradient profile (Step S12), and subsequently, to set the number of steps to change the mixture ratio of the mobile phase at the beginning and/or at the end of the gradient process as well as the amount of change in the mixture ratio per step (Step S13). After that, based on the possible combinations of the mixture ratios of the mobile phase at the beginning and at the end of the gradient process computed from the contents of information entered in the previous steps, a plurality of gradient profiles corresponding to those combinations are created (Step S14).

Abstract: To reduce damage to a column caused during column switching when performing successive analyses while switching columns, provided is liquid chromatograph control system 70 for analyzing a sample according to a schedule table where analysis conditions and execution order of a plurality of analyses are described. Control system 70 includes: schedule reader 66 for reading out two consecutively executed analysis conditions; column comparator 67 for comparing columns used in the two analysis conditions; insertion method file creator for creating an insertion method file so that the flow rate of a mobile phase sent to the column used in later one of the two analyses is increased in stages toward a flow rate determined for the later analysis, where the columns are different between the two analysis conditions; and a schedule table creator 63 for inserting the insertion method file into immediately before the later analysis in the schedule table.

Abstract: A liquid chromatograph analysis method and a liquid chromatograph minimize analysis time when performing analyses by switching columns and mobile phases. Liquid chromatograph 100 for performing a plurality of analyses according to a schedule table includes: mobile phase switching sections 15, 16 for switching a plurality of mobile phases to select a mobile phase to be used in analysis; column switching sections 31, 33 for switching a plurality of columns 32a-32f to select a column to be used in analysis; and control section 60 including memory 61 for storing an equilibration time of each of the plurality of columns 32a to 32f and an equilibration controller 66 for controlling column equilibration. If used columns or used mobile phases are different between two consecutively executed analyses, equilibration controller 66 equilibrates a column used in the later of the two analyses over an equilibration time read out from memory 61.

Abstract: Provided is a chromatograph data processing system for presenting unexamined analysis conditions to a user in an easily understood manner when changing a plurality of analysis condition parameters. The system is used for a chromatograph for analyzing a sample according to a schedule table in which a plurality of analysis conditions and execution order of a plurality of analyses are described, each of the plurality of analysis conditions being defined by a combination of control parameter values. The system includes: memory 61 for storing a plurality of analysis conditions; unexamined analysis condition creator 66 for creating all combinations of values of control parameters included in the plurality of analysis conditions, and for creating a list of unexamined analysis conditions from the created combinations, the list being composed of analysis conditions that are not included in the plurality of analysis conditions stored in the memory 61; and display section 72.

Abstract: A shaft coupling mechanism for an electric power steering apparatus includes a coupling base body coupled to a rotating shaft on a side of an electric motor; a coupling base body coupled to a steering shaft; rotation transmitting members interposed between both coupling base bodies and adapted to transmit the rotation of the rotating shaft in an R direction to the steering shaft through both coupling base bodies; an intermediate interposed member interposed between the coupling base bodies; and a coupling means for coupling the rotation transmitting members to each other.

Abstract: Disclosed are a catalyst for producing, from an alcohol, an olefin whose number of carbon atoms is at least one more than the number of carbon atoms of the alcohol, wherein at least the surface of the catalyst is substantially composed of zirconium oxide; a method for producing an olefin using the same; and so on.