Abstract: Provided is a gas chromatograph device capable of appropriately determining that a temperature of an entirety of a heating target has stabilized after cooling the heating target in a column oven to a target temperature after a temperature-rising analysis. A gas chromatograph device capable of performing a temperature-rising analysis cools an inside of a column oven by a cooling mechanism. When a detection temperature by a temperature sensor for detecting a temperature of the heating target has reached a target temperature after the inside of the column oven has been cooled, the heating target is heated by a heater. Upon reaching of the detection temperature of the temperature sensor to the target temperature, it is determined whether or not the temperature of the entirety of the heating target has stabilized based on power consumption of the heater.

Abstract: A vial supply system is provided with: a sampler configured to supply a vial to a predetermined supply destination by a transport arm; a management device communicatively connected to the sampler, the management device being configured to manage a supply operation of the vial by the sampler; and a display device provided so as to be able to communicate with the management device. When a teaching mode for performing teaching for setting a position of a transport arm at the time when a transport arm of the sampler transports the vial to and from the supply destination is started, the management device is configured to cause the display device to display an operation to be performed by a user in the teaching.

Abstract: A gas chromatograph includes an oven that has a first heater device and a second heater device. The first heater device and the second heater device are connected in series when a voltage of a power supply is a first voltage, and are connected in parallel when the voltage of the power supply is a second voltage that is lower than the first voltage. A power controller includes a first control device that controls ON/OFF of supply of power to the series-connected first heater device and second heater device or ON/OFF of supply of power to the parallel-connected first heater device, and a second control device that controls ON/OFF of supply of power to the parallel-connected second heater device. A controller adjusts a duty ratio of supply of power to the parallel-connected first heater device and second heater device by controlling the first control device and the second control device when the voltage of the power supply is the second voltage.

Abstract: A gas chromatograph is provided with a communication unit, a setting processing unit, a first operation reception unit, and a maintenance processing unit. The communication unit communicates with an outside. The setting processing unit sets any one of the plurality of maintenance modes to a default maintenance mode in response to an input from the outside via the communication unit. The first operation reception unit is provided in the housing and is configured to accept a progress operation for progressing a maintenance sequence corresponding to the default maintenance mode. The maintenance processing unit progresses the maintenance sequence stepwise each time the progress operation is accepted by the first operation reception unit. The first operation reception unit is commonly used even in a case where any one of the plurality of maintenance modes is set to the default maintenance mode.

Abstract: Provided is a gas chromatograph device capable of appropriately determining that a temperature of an entirety of a heating target has stabilized after cooling the heating target in a column oven to a target temperature after a temperature-rising analysis. A gas chromatograph device capable of performing a temperature-rising analysis cools an inside of a column oven by a cooling mechanism. When a detection temperature by a temperature sensor for detecting a temperature of the heating target has reached a target temperature after the inside of the column oven has been cooled, the heating target is heated by a heater. Upon reaching of the detection temperature of the temperature sensor to the target temperature, it is determined whether or not the temperature of the entirety of the heating target has stabilized based on power consumption of the heater.

Abstract: A vial supply system is provided with: a sampler configured to supply a vial to a predetermined supply destination by a transport arm; a management device communicatively connected to the sampler, the management device being configured to manage a supply operation of the vial by the sampler; and a display device provided so as to be able to communicate with the management device. When a teaching mode for performing teaching for setting a position of a transport arm at the time when a transport arm of the sampler transports the vial to and from the supply destination is started, the management device is configured to cause the display device to display an operation to be performed by a user in the teaching.

Abstract: An analysis system includes one or a plurality of analysis devices and a fluid remaining amount management device. The one or plurality of analysis devices perform an analysis using fluid supplied from a gas cylinder that is used as a fluid source. The fluid remaining amount management device includes a scheduled usage amount estimator and a remaining amount shortage time determiner. The scheduled usage amount estimator estimates transition of a scheduled usage amount of fluid to be used later than a current point in time in the one or plurality of analysis devices. A remaining amount shortage time determiner determines a remaining amount shortage time when a shortage of a remaining amount of fluid in each gas cylinder occurs based on the estimated transition of the scheduled usage amount.

Abstract: In a gas chromatograph 1, a back-pressure calculation processor 242 calculates a back pressure for a first detector. The pressure calculation processor 243 calculates a pressure of a carrier gas in a branching part. The back-flow determination processor 244 compares the pressure of the carrier gas in the branching part calculated by the pressure calculation processor 243 with the back pressure of the first detector calculated by the back-pressure calculation processor 242, and if the pressure of the carrier gas in the branching part is smaller than the back pressure of the first detector, the back-flow determination processor 244 determines that the carrier gas will flow back. It is therefore possible to surely know that there is a possibility that a back-flow of the carrier gas will occur, by checking the determination result of the back-flow determination processor 244.

Abstract: Provided is an analyzing device including: a storage section (21) configured to store a plurality of predetermined items concerning the state of the analyzing device and a relationship between each of the plurality of items and a parameter corresponding to the item; an item input receiver (23) configured to receive an input of one of the plurality of items; a parameter value collector (24) configured to specify a parameter corresponding to the item imputed from the item input receiver by referring to the storage section and to collect a value of the parameter from the analyzing device; and a parameter value outputter (25) configured to output the collected value of the parameter in a predetermined form. The parameter value can be outputted, for example, in the form of a two-dimensional code or a form that can be read through a short-range wireless communication.

Abstract: In a gas chromatograph 1, a back-pressure calculation processor 242 calculates a back pressure for a first detector. The pressure calculation processor 243 calculates a pressure of a carrier gas in a branching part. The back-flow determination processor 244 compares the pressure of the carrier gas in the branching part calculated by the pressure calculation processor 243 with the back pressure of the first detector calculated by the back-pressure calculation processor 242, and if the pressure of the carrier gas in the branching part is smaller than the back pressure of the first detector, the back-flow determination processor 244 determines that the carrier gas will flow back. It is therefore possible to surely know that there is a possibility that a back-flow of the carrier gas will occur, by checking the determination result of the back-flow determination processor 244.

Abstract: A gas chromatograph, which may have a complex device configuration, capable of starting an analysis by replacing residual gas in a column with a carrier gas in starting up the gas chromatograph and by increasing the temperature of a column oven to an analytical initial temperature immediately after completion of the replacement. Upon command to start a gas chromatograph, a control unit calculates the average linear velocity of a carrier gas using a formula based on information such as the inner diameter and the length of a column, the column head pressure and the column outlet pressure, and the type of carrier gas, which are set as analytical conditions, and, for example, based on a detected temperature of a column oven and further calculates gas replacement necessary time from the average linear velocity and the length of the column. Based on the calculated time, a start time is determined.

Abstract: A flow controller including a flow channel resistance disposed in a carrier gas supply flow channel, a control valve, pressure detecting portion 22 and a pressure difference detecting portion, a storage part storing a first calibration curve indicating a correlation between a pressure difference ?p and a total flow volume ftemp1 at the first set supply pressure Pin, ref1 and a second calibration curve indicating a correlation between a pressure difference ?p and the total flow volume ftemp2 at a second set supply pressure Pin,ref2 larger than the first set supply pressure Pin,ref1 is provided. A total flow volume f of the carrier gas is calculated based on the supply pressure pin detected by the pressure detecting portion, pressure difference ?p information detected by the pressure difference detecting portion, the first calibration curve and the second calibration curve.

Abstract: A gas chromatograph, which may have a complex device configuration, capable of starting an analysis by replacing residual gas in a column with a carrier gas in starting up the gas chromatograph and by increasing the temperature of a column oven to an analytical initial temperature immediately after completion of the replacement. Upon command to start a gas chromatograph, a control unit calculates the average linear velocity of a carrier gas using a formula based on information such as the inner diameter and the length of a column, the column head pressure and the column outlet pressure, and the type of carrier gas, which are set as analytical conditions, and, for example, based on a detected temperature of a column oven and further calculates gas replacement necessary time from the average linear velocity and the length of the column Based on the calculated time, a start time is determined.

Abstract: In a gas chromatograph, a display unit is provided in a main body. In addition, a touch panel-type display screen is included in the display unit. Further, a setting processing unit performs setting related to a graph displayed in a graph area based on a touch operation on the graph area of the display screen. For this reason, an operator may perform setting related to the graph displayed in the graph area of the display screen only by performing a touch operation on the touch panel-type display screen provided in the main body.

Abstract: In a gas chromatograph 1, a back-pressure calculation processor 242 calculates a back pressure for a first detector. The pressure calculation processor 243 calculates a pressure of a carrier gas in a branching part. The back-flow determination processor 244 compares the pressure of the carrier gas in the branching part calculated by the pressure calculation processor 243 with the back pressure of the first detector calculated by the back-pressure calculation processor 242, and if the pressure of the carrier gas in the branching part is smaller than the back pressure of the first detector, the back-flow determination processor 244 determines that the carrier gas will flow back. It is therefore possible to surely know that there is a possibility that a back-flow of the carrier gas will occur, by checking the determination result of the back-flow determination processor 244.

Abstract: When a flow rate of a carrier gas calculated by a column flow rate calculation unit is controlled to be a first flow rate, and when the flow rate of the carrier gas is controlled to be a second flow rate, the flow rates of the carrier gas are detected by a whole flow rate detection unit, and a gas leakage determination unit determines of leakage of the carrier gas on the basis of the rates. Since the flow rate of the carrier gas is changed and the detected value of the whole flow rate detection unit is used at different flow rates, a case can be discriminated where an offset occurs in the detected value of the whole flow rate detection unit and a case where leakage of the carrier gas occurs. Thus, it is satisfactorily determined the presence or absence of the leakage of the carrier gas.

Abstract: A flow controller including a flow channel resistance disposed in a carrier gas supply flow channel, a control valve, pressure detecting portion 22 and a pressure difference detecting portion, a storage part storing a first calibration curve indicating a correlation between a pressure difference ?p and a total flow volume ftemp1 at the first set supply pressure Pin, ref1 and a second calibration curve indicating a correlation between a pressure difference ?p and the total flow volume ftemp2 at a second set supply pressure Pin,ref2 larger than the first set supply pressure Pin,ref1 is provided. A total flow volume f of the carrier gas is calculated based on the supply pressure pin detected by the pressure detecting portion, pressure difference ?p information detected by the pressure difference detecting portion, the first calibration curve and the second calibration curve.

Abstract: When a flow rate of a carrier gas calculated by a column flow rate calculation unit is controlled to be a first flow rate, and when the flow rate of the carrier gas is controlled to be a second flow rate, the flow rates of the carrier gas are detected by a whole flow rate detection unit, and a gas leakage determination unit determines of leakage of the carrier gas on the basis of the rates. Since the flow rate of the carrier gas is changed and the detected value of the whole flow rate detection unit is used at different flow rates, a case can be discriminated where an offset occurs in the detected value of the whole flow rate detection unit and a case where leakage of the carrier gas occurs. Thus, it is satisfactorily determined the presence or absence of the leakage of the carrier gas.

Abstract: A gas chromatograph is provided with a separation column, a column oven, a sample vaporization unit, a carrier gas supply unit configured to supply a carrier gas to the sample vaporization unit, a detector, a carrier gas flow rate control unit configured to control a flow rate of a carrier gas to be supplied from the carrier gas supply unit to the sample vaporization unit so that a column linear velocity becomes constant, a detector gas supply unit configured to supply a detector gas, and a detector gas flow rate control unit configured to control the flow rate of the detector gas so that a total flow rate of the carrier gas to be introduced into the detector and the same type of a detector gas as the carrier gas becomes a preset constant flow rate.

Abstract: This invention relates to bacteria having a function of reducing the content of heavy metals in plants, a method for reducing the content of heavy metals in plants with the use of such bacteria, and a composition comprising, as an active ingredient, such bacteria.