Quality analysis equipment

Abstract

This mass spectrometer comprises: an analysis unit; an activation switch; a reading unit; a setting unit; and an activation unit. The analysis unit performs mass spectrometry on a sample on the basis of an analysis parameter corresponding to an analysis condition. The reading unit reads an analysis parameter that has been previously set or an analysis parameter that has been instructed by a user, in response to the activation switch being turned on. The setting unit sets the analysis parameter read by the reading unit. The activation unit activates the analysis unit according to the analysis parameter set by the setting unit.

Description

[Technical field]

[0001] The present invention relates to a mass spectrometer. [Background technology]

[0002] Mass spectrometers are known as analytical devices that analyze the masses of components contained in a sample. For example, Patent Document 1 describes a time-of-flight mass spectrometer. In this mass spectrometer, ions are generated from a sample in a chamber. The generated ions are accelerated by an electric field, fly through a high vacuum part in the chamber, and reach an ion detector. The flight time of the ions at this time varies depending on the mass-to-charge ratio of the ions. Therefore, the mass-to-charge ratio of each ion is measured based on the flight time of the accelerated ions until they are detected by the detector. [Patent Document 1] International Publication No. 2017 / 060991 Summary of the Invention [Problem to be solved by the invention]

[0003] As a preparation before starting mass analysis, the vacuum pump is started. This causes the chamber to be evacuated after a predetermined time. After the chamber is evacuated, analysis parameters corresponding to analysis conditions for performing any mass analysis are set in the mass analyzer. This causes control of the components of the mass analyzer to begin based on the set analysis parameters. After a predetermined time, the analysis conditions are satisfied, making it possible to start mass analysis.

[0004] This kind of preparation before starting mass analysis must be performed every time the mass spectrometer is started, which increases the burden on the user and lengthens the waiting time before mass analysis can be started, resulting in a decrease in the usability of the mass spectrometer.

[0005] An object of the present invention is to provide a mass spectrometer with improved usability. [Means for solving the problem]

[0006] One aspect of the present invention is an analytical unit that performs mass spectrometry of a sample based on analytical parameters corresponding to analytical conditions, a start switch, and a device that, in response to the start switch being turned on, starts a previously set analytical parameter or Previously The present invention relates to a mass spectrometer comprising a readout unit that reads out analysis parameters specified by a user, a setting unit that sets the analysis parameters read out by the readout unit, and a startup unit that starts up the analysis unit in accordance with the analysis parameters set by the setting unit. Effect of the Invention

[0007] According to the present invention, the usability of a mass spectrometer can be improved. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a diagram showing the configuration of an analysis system including a mass spectrometer according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a schematic diagram showing the configuration of the mass spectrometer of FIG. [Diagram 3] FIG. 3 is a block diagram showing the configuration of the control device of FIG. [Figure 4] FIG. 4 is a flow chart showing an algorithm for mass spectrometry control processing by the control device of FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] (1) Analysis system configuration A mass spectrometer according to an embodiment of the present invention will be described in detail below with reference to the drawings. Fig. 1 is a diagram showing the configuration of an analysis system including a mass spectrometer according to an embodiment of the present invention. As shown in Fig. 1, the analysis system 200 includes a mass spectrometer 100, a chromatograph 210, a processing device 220, an operation unit 230, and a display unit 240.

[0010] In this example, the chromatograph 210 is a liquid chromatograph. In the chromatograph 210, a sample to be analyzed is introduced into a separation column together with a solvent. The sample introduced into the separation column is separated into components based on differences in chemical properties or composition. The liquid sample separated into components is introduced into the mass spectrometer 100, where mass analysis of the sample is performed. Details of the mass spectrometer 100 will be described later.

[0011] The processing device 220 is realized by an information processing device such as a personal computer, and includes a CPU (Central Processing Unit) and a storage device, etc. The processing device 220 issues control commands to the mass spectrometer 100 or the chromatograph 210. The processing device 220 also processes the analysis results by the mass spectrometer 100 or the chromatograph 210 to generate a mass spectrum, a chromatogram, etc.

[0012] The operation unit 230 is an input device such as a keyboard, a mouse, or a touch panel. A user can give various instructions to the processing device 220 by operating the operation unit 230. The display unit 240 is a display device such as a liquid crystal display device. The display unit 240 can display mass spectra, chromatograms, etc. generated by the processing device 220.

[0013] (2)Mass spectrometer Fig. 2 is a schematic diagram showing the configuration of the mass spectrometer 100 of Fig. 1. As shown in Fig. 2, the mass spectrometer 100 includes an analysis section 110, a vacuum pump 120, a power supply unit 130, a control device 140, and a housing unit 150. The mass spectrometer 100 is also provided with gas supply units 101-104. The analysis section 110 includes a vacuum vessel 10, an ion source 111, ion guides 112-114, a mass filter 115, a collision cell 116, a mass filter 117, and a detector 118, and performs mass analysis of a sample based on set analysis parameters.

[0014] The vacuum vessel 10 extends in the direction in which ions fly. In the following description, the direction in which ions fly in the vacuum vessel 10 is defined as downstream, and the opposite direction is defined as upstream. Inside the vacuum vessel 10, an ionization chamber 11, a vacuum chamber 12, a vacuum chamber 13, a vacuum chamber 14, and a vacuum chamber 15 are arranged in this order from upstream to downstream. The degree of vacuum inside the vacuum vessel 10 increases from upstream to downstream. Therefore, the degree of vacuum in the ionization chamber 11 is the lowest, and the degree of vacuum in the vacuum chamber 15 is the highest. For example, the pressure in the ionization chamber 11 is approximately atmospheric pressure, and the pressure in the vacuum chamber 15 is approximately 10 -2 ~10 -3 It is Pa.

[0015] The ionization chamber 11 and the vacuum chamber 12 are separated by a partition 20. A DL (desolvation line) 21 is provided in the partition 20. The ionization chamber 11 is adjusted to a predetermined temperature by a heater 1. The vacuum chamber 12 and the vacuum chamber 13 are separated by a partition 30. A skimmer cone 31 is provided in the partition 30. The vacuum chamber 13 and the vacuum chamber 14 are separated by a partition 40. A hole 41 is provided in the partition 40. The vacuum chamber 14 and the vacuum chamber 15 are separated by a partition 50. A hole 51 is provided in the partition 50.

[0016] The ion source 111 includes an ionization probe such as an ESI (Electrospray Ionization) probe, and is attached to the ionization chamber 11. A liquid sample separated into components by the chromatograph 210 in Fig. 1 is supplied to the ion source 111. A nebulizer gas such as nitrogen gas is supplied to the ion source 111 by the gas supply unit 101. By supplying the nebulizer gas to the ion source 111, the sample is sprayed in the ionization chamber 11 while being charged.

[0017] Furthermore, a heating gas such as clean air is supplied to the ion source 111 by a gas supply unit 102. The ion source 111 is also provided with a heater 2 for heating the heating gas. The supply of the heating gas to the ion source 111 heats the sample to be sprayed. As a result, components in the sprayed sample are ionized in the ionization chamber 11. Usually, singly charged ions of each component are generated.

[0018] A drying gas such as clean air is supplied to the ionization chamber 11 by a gas supply unit 103 so as to flow from downstream to upstream. By supplying the drying gas to the ionization chamber 11, neutral molecules and non-measurement target ions are removed from the ions generated in the ionization chamber 11.

[0019] The ion guides 112-114 are disposed in the vacuum chambers 12-14, respectively. Ions generated in the ionization chamber 11 are guided to the vacuum chamber 12 through the DL 21 of the partition 20. The DL 21 is provided with a heater 3 for heating the ions. This removes droplets associated with the ions. The ions that have reached the vacuum chamber 12 are guided by the ion guide 112 to the vacuum chamber 13 through the skimmer cone 31 of the partition 30. The ions that have reached the vacuum chamber 13 are guided by the ion guide 113 to the vacuum chamber 14 through the hole 41 of the partition 40. The ions that have reached the vacuum chamber 14 are guided by the ion guide 114 to the vacuum chamber 15 through the hole 51 of the partition 50.

[0020] The mass filter 115, collision cell 116 and mass filter 117 are arranged in the vacuum chamber 15 in this order from upstream to downstream. Each of the mass filters 115, 117 is, for example, a quadrupole mass filter including four rod electrodes. The mass filter 115 allows only ions that have a specific mass-to-charge ratio corresponding to the applied voltage to fly and pass through among the ions that reach the vacuum chamber 15. The ions that pass through the mass filter 115 reach the collision cell 116 as precursor ions.

[0021] A collision-induced dissociation (CID) gas such as argon gas is supplied to the collision cell 116 by the gas supply unit 104. In the collision cell 116, precursor ions collide with the CID gas, dissociating the precursor ions to generate product ions. The mass filter 117 allows only precursor ions having a specific mass-to-charge ratio corresponding to the applied voltage to fly and pass through the precursor ions generated in the collision cell 116.

[0022] Detector 118 is, for example, an electron multiplier, and is disposed in vacuum chamber 15 so as to be located downstream of mass filter 117. Detector 118 detects ions that have passed through mass filter 117, and provides a detection signal indicative of the amount detected to controller 140 as the analysis result.

[0023] The vacuum pump 120 includes, for example, a rotary pump and a turbo molecular pump, and evacuates the atmosphere in the vacuum chambers 12-15 to maintain each of the vacuum chambers 12-15 at a predetermined vacuum level. The power supply unit 130 includes an amplifier, a switch, etc., and supplies high voltage to each component of the analysis unit 110 including the mass filters 115, 117. The power supply unit 130 is also provided with a heater 4 for adjusting the temperature to a constant level.

[0024] The control device 140 includes, for example, a CPU and a storage device. When the analysis unit 110 is started, the control device 140 starts the operation of the vacuum pump 120 and sets analysis parameters corresponding to the analysis conditions for performing mass analysis. The power supply device 130, the heaters 1 to 4, and the gas supply units 101 to 104 operate based on the set parameters. During mass analysis, the control device 140 controls the operation of the analysis unit 110 based on a control command from the processing unit 220 in FIG. 1. Furthermore, the control device 140 provides the analysis results by the analysis unit 110 to the processing unit 220. Details of the control device 140 will be described later.

[0025] The housing 150 houses the analysis section 110, the vacuum pump 120, the power supply device 130, and the control device 140. In the example of FIG. 2, the gas supply units 101-104 are arranged inside the housing 150, but some or all of the gas supply units 101-104 may be arranged outside the housing 150. The housing 150 is provided with a main power switch 151 and a start switch 152. The start switch 152 is arranged on the front surface of the housing 150 where it can be easily operated by a user. The main power switch 151 is arranged on the rear surface of the housing 150 opposite to the front surface.

[0026] When main power switch 151 is turned on, control device 140 is started. When start-up switch 152 is turned on while main power switch 151 is on, analysis unit 110 is started. Note that in this embodiment, start-up switch 152 is a physical switch, but it may be a GUI (Graphical User Interface) displayed on a display screen or the like. Also, when start-up switch 152 also has the function of main power switch 151, main power switch 151 does not need to be provided.

[0027] (3) Control device Fig. 3 is a block diagram showing the configuration of the control device 140 in Fig. 2. As shown in Fig. 3, the control device 140 includes, as functional units, a storage unit 141, a readout unit 142, a pump control unit 143, a reception unit 144, a setting unit 145, a startup unit 146, and an analysis execution unit 147. The functional units of the control device 140 are realized by the CPU of the control device 140 executing a mass spectrometry control program stored in the storage device. Some or all of the functional units of the control device 140 may be realized by hardware such as electronic circuits.

[0028] The storage unit 141 stores analysis parameters previously set by the setting unit 145. In this example, the storage unit 141 stores the analysis parameters set every time an analysis parameter is set by the setting unit 145. In this case, the storage unit 141 stores the analysis parameters that were set by the setting unit 145 at the end of the previous mass spectrometry.

[0029] In response to the start switch 152 being turned on, the readout unit 142 reads out the analysis parameters stored in the storage unit 141. In response to the start switch 152 being turned on, the pump control unit 143 starts the operation of the vacuum pump 120.

[0030] Here, in the routine work, mass spectrometry may be performed based on the same analysis parameters as those previously set. On the other hand, there are cases where the analysis parameters previously set are not the analysis parameters desired by the user. In this case, the reception unit 144 receives an instruction for analysis parameters from the processing device 220. If the analysis parameters stored in the storage unit 141 are not the desired analysis parameters, the user can instruct the processing device 220 to set the desired analysis parameters by operating the operation unit 230 in FIG. 1.

[0031] Setting section 145 sets the analysis parameters read by reading section 142. Furthermore, when an analysis parameter is specified by reception section 144, setting section 145 updates the set analysis parameter to the specified analysis parameter. Furthermore, each time setting an analysis parameter, setting section 145 stores the set analysis parameter in storage section 141.

[0032] The start-up unit 146 starts up the analysis unit 110 according to the analysis parameters set by the setting unit 145. Specifically, the analysis parameters include temperature, gas, or voltage. The start-up unit 146 starts the operation of the heaters 1 to 4 so that the heaters 1 to 4 operate at the set temperature. The start-up unit 146 starts the operation of the gas supply units 101 to 104 so that the set gas is supplied. The start-up unit 146 starts the operation of the power supply device 130 so that the set voltage is supplied to each component of the analysis unit 110.

[0033] Analysis execution unit 147 controls the operation of analysis unit 110 so that mass analysis is performed based on a control command given by processing unit 220. When a command to start mass analysis is given by a user via operation unit 230, processing unit 220 gives a control command to analysis execution unit 147 to perform mass analysis. In addition, analysis execution unit 147 acquires analysis results from analysis unit 110 and provides the acquired analysis results to processing unit 220. As a result, a chromatogram or the like is generated in processing unit 220.

[0034] (4) Mass spectrometry control processing Fig. 4 is a flowchart showing an algorithm of the mass spectrometry control process by the control device 140 of Fig. 3. The mass spectrometry control process of Fig. 4 is performed by the CPU of the control device 140 executing a mass spectrometry control program stored in the storage device. The mass spectrometry control process will be described below with reference to the flowchart of Fig. 4 together with the control device 140 of Fig. 3.

[0035] First, the readout unit 142 determines whether the start-up switch 152 is turned on (step S1). If the start-up switch 152 is not turned on, the readout unit 142 waits until the start-up switch 152 is turned on. If the start-up switch 152 is turned on, the readout unit 142 reads out the analysis parameters stored in the storage unit 141 (step S2). In addition, the pump control unit 143 starts the operation of the vacuum pump 120 (step S3).

[0036] In this example, step S3 is executed between step S2 and the next step S4, but the embodiment is not limited thereto. Step S3 may be executed simultaneously with step S2 or step S4. Alternatively, step S3 may be executed after step S4 or before step S2. When step S3 is executed before step S2, step S1 may be executed by the pump control unit 143.

[0037] Next, the setting unit 145 sets the analysis parameters read out in step S2 (step S4). Here, the setting unit 145 stores the set analysis parameters in the storage unit 141 (step S5). Then, the starting unit 146 starts up the analysis unit 110 in accordance with the analysis parameters set in step S4 (step S6). This causes the heaters 1 to 4 to operate at the set temperature. In addition, the set gas is supplied by the gas supply units 101 to 104. In addition, the set voltage is supplied to each part of the analysis unit 110 by the power supply device 130.

[0038] Thereafter, the analysis execution unit 147 judges whether or not an instruction to start mass analysis has been received from the processing device 220 (step S7). If an instruction to start mass analysis has not been received, the reception unit 144 judges whether or not an instruction for analysis parameters has been received from the processing device 220 (step S8). If an instruction for analysis parameters has not been received, the reception unit 144 returns to step S7. If an instruction for analysis parameters has been received, the setting unit 145 updates the analysis parameters set in step S4 to the instructed analysis parameters (step S9), and returns to step S5. As a result, the newly set analysis parameters are stored in the storage unit 141 in step S5. Furthermore, the analysis unit 110 is started according to the newly set analysis parameters.

[0039] When the start of mass analysis is instructed in step S7, the analysis execution unit 147 executes mass analysis by controlling the analysis unit 110 according to a control command given by the processing unit 220 (step S10). As a result, the analysis result by the analysis unit 110 is given to the processing unit 220, and the mass analysis control process ends.

[0040] (5) Effects In mass spectrometer 100 according to this embodiment, in response to start-up switch 152 being turned on, previously set analysis parameters are read out by read-out unit 142. The analysis parameters read out by read-out unit 142 are set by setting unit 145. Analysis unit 110 is started by start-up unit 146 in accordance with the analysis parameters set by setting unit 145. Furthermore, in response to start-up switch 152 being turned on, operation of vacuum pump 120 is started by pump control unit 143.

[0041] According to this configuration, in response to turning on start switch 152, analysis unit 110 starts according to the previously set analysis parameters, and evacuation of the vacuum vessel 10 begins. In this case, after turning on start switch 152, the user does not need to perform any operation to set analysis parameters, and does not need to perform any operation to operate vacuum pump 120. This reduces the burden on the user.

[0042] Furthermore, when the analysis unit 110 is started, the heaters 1-4, the gas supply units 101-104, and the power supply unit 130 operate according to the set analysis parameters. This reduces the time required for temperature adjustment, the time required for gas supply, and the time required for voltage supply. In other words, the waiting time until mass analysis can be started is reduced. As a result, the usability of the mass spectrometer is improved.

[0043] Furthermore, in this embodiment, every time an analysis parameter is set by setting unit 145, the set analysis parameter is automatically stored in storage unit 141. As a result, every time start switch 152 is turned on, analysis unit 110 can be started according to the analysis parameter that was set at the end of the previous mass analysis.

[0044] Furthermore, when analysis parameters are specified by the reception unit 144, the set analysis parameters are updated to the specified analysis parameters. Therefore, even if the analysis parameters set at the time of starting up the analysis unit 110 are not the analysis parameters desired by the user, the user can change the analysis parameters to be set during mass analysis to the desired analysis parameters.

[0045] (6) Other embodiments (a) In the above embodiment, previously set analysis parameters are stored in storage unit 141, but the embodiment is not limited to this. The user can specify any analysis parameters to reception unit 144. Therefore, the analysis parameters specified by the user may be stored in storage unit 141. In this case, in response to start-up switch 152 being turned on, the analysis parameters specified by the user are read out. As a result, the analysis parameters specified by the user are set.

[0046] (b) In the above embodiment, each time an analysis parameter is set by setting unit 145, the set analysis parameter is stored in storage unit 141, but the embodiment is not limited to this. The user can instruct reception unit 144 whether or not to store the analysis parameter. Therefore, the set analysis parameter may be stored in storage unit 141 in response to the user's instruction. In this case, the user can store desired analysis parameters that have been previously set. Thereby, each time start-up switch 152 is turned on, analysis unit 110 can be started according to any analysis parameter that has been previously set.

[0047] (c) In the above embodiment, the control device 140 includes the pump control unit 143, but the embodiment is not limited to this. The user may manually start the operation of the vacuum pump 120 after turning on the start switch 152. In this case, the control device 140 does not need to include the pump control unit 143.

[0048] (d) In the above embodiment, the temperature adjustment, the gas supply, and the voltage supply are performed when the analysis unit 110 is started up, but the embodiment is not limited to this. Only one of the temperature adjustment, the gas supply, and the voltage supply may be performed when the analysis unit 110 is started up. For example, the time required for the temperature adjustment tends to be longer than the time required for the gas supply and the time required for the voltage supply. Therefore, only the temperature adjustment may be performed when the analysis unit 110 is started up. In this case, the gas supply and the voltage supply are performed after the temperature adjustment is completed.

[0049] (e) In the above embodiment, mass spectrometer 100 is used in a state where it is connected to processing device 220, but the embodiment is not limited to this. If control device 140 has the same functions as processing device 220, mass spectrometer 100 may be used without being connected to processing device 220. That is, although mass spectrometer 100 is an online type device in the above embodiment, it may also be a stand-alone type device.

[0050] In the above embodiment, the mass spectrometer 100 is a stand-alone device with respect to the start-up of the analysis unit 110. That is, the analysis unit 110 can be started up in response to a start-up command given from the processing device 220, but can also be started up by turning on the start-up switch 152 even if no start-up command is given from the processing device 220.

[0051] (7) Description It will be appreciated by those skilled in the art that the above exemplary embodiments are illustrative of the following aspects.

[0052] (Item 1) A mass spectrometer according to one aspect of the present invention comprises: an analysis unit that performs mass analysis of the sample based on analysis parameters corresponding to the analysis conditions; The start switch and a readout unit which reads out previously set analysis parameters or analysis parameters designated by a user in response to the start-up switch being turned on; a setting unit that sets the analysis parameters read by the reading unit; The apparatus may further include an activation unit that activates the analysis unit in accordance with the analysis parameters set by the setting unit.

[0053] According to this configuration, in response to the start-up switch being turned on, the analysis unit is started up according to the analysis parameters that were previously set or the analysis parameters that were instructed by the user. In this case, the user does not need to perform any operation to set the analysis parameters after turning on the start-up switch. This reduces the burden on the user. Also, the waiting time until mass analysis can be started is shortened. As a result, the usability of the mass spectrometer is improved.

[0054] (2) In the mass spectrometer according to (1), the analysis unit includes a vacuum vessel into which a sample is introduced; The mass spectrometer is a vacuum pump for evacuating the inside of the vacuum vessel; The vacuum pump may further include a pump control unit that starts operation of the vacuum pump in response to the start switch being turned on.

[0055] In this case, evacuation of the vacuum vessel begins in response to the start switch being turned on. Therefore, the user does not need to perform any operation to operate the vacuum pump after turning on the start switch. This further reduces the burden on the user. Also, the waiting time until evacuation is completed is shortened. As a result, the usability of the mass spectrometer is further improved.

[0056] (Item 3) The mass spectrometer according to item 1 or 2, a storage unit that stores the analysis parameters each time the analysis parameters are set by the setting unit, The reading unit may read out the analysis parameters stored in the storage unit in response to the activation switch being turned on.

[0057] In this case, each time an analytical parameter is set, the set analytical parameter is automatically stored in the storage unit, so that each time the start switch is turned on, the analytical unit can be started according to the analytical parameters that were set at the end of the previous mass spectrometry.

[0058] (4) The mass spectrometer according to claim 1 or 2, A storage unit for storing the set analysis parameters in response to an instruction from a user is further provided, The reading unit may read out the analysis parameters stored in the storage unit in response to the activation switch being turned on.

[0059] In this case, each time the start-up switch is turned on, the analysis unit can be started up according to any analysis parameters that have been previously set.

[0060] (5) The mass spectrometer according to claim 1 or 2, A reception unit capable of receiving an instruction for an analysis parameter is further provided, When an analysis parameter is specified by the reception unit, the setting unit may update the set analysis parameter to the specified analysis parameter.

[0061] According to this configuration, even if the analysis parameters set at the time of starting up the analysis unit are not the analysis parameters desired by the user, the user can change the analysis parameters to be set during mass analysis to the desired analysis parameters.

[0062] (Item 6) The mass spectrometer according to item 1 or 2, Further comprising a heater for adjusting the temperature of a predetermined portion of the analysis unit; The analytical parameters include temperature; The starting unit may start operation of the heater so that the heater operates at the temperature set by the setting unit.

[0063] In this case, when the analysis unit is started up, the time required for temperature adjustment of a predetermined portion of the analysis unit can be shortened.

[0064] (Item 7) The mass spectrometer according to item 1 or 2, A power supply device that supplies a voltage to the analysis unit; a heater for adjusting the temperature of the power supply device, The analytical parameters include temperature; The starting unit may start operation of the heater so that the heater operates at the temperature set by the setting unit.

[0065] In this case, the time required to adjust the temperature of the power supply device when the analysis unit is started up can be shortened.

[0066] (Item 8) The mass spectrometer according to item 1 or 2, A gas supply unit for supplying a predetermined gas to the analysis unit is further provided. The analytical parameters include gas, The starting unit may start an operation of the gas supply unit so as to supply the gas set by the setting unit.

[0067] In this case, the time required to supply gas to the analysis unit when the analysis unit is started up can be shortened.

[0068] (Item 9) The mass spectrometer according to item 1 or 2, Further comprising a power supply; The analysis parameters include voltage; The startup unit may start operation of the power supply device so as to supply the voltage set by the setting unit to the analysis unit.

[0069] In this case, the time required to supply voltage to the analysis unit when the analysis unit is started can be shortened.

[0070] (Item 10) The mass spectrometer according to item 1 or 2, a processor that provides control instructions to the mass spectrometer; The analysis unit may be activated in response to a start-up command being given from the processing device.

[0071] In this case, the analysis unit can be started by issuing a start-up command from the processing device to the analysis unit. On the other hand, even if a start-up command is not issued from the processing device, the user can start the analysis unit by turning on the start-up switch.

Claims

1. an analysis unit that performs mass analysis of the sample based on analysis parameters corresponding to the analysis conditions; The start switch and a readout unit which reads out previously set analysis parameters or previously designated analysis parameters by a user in response to the start-up switch being turned on; a setting unit that sets the analysis parameters read by the reading unit; and an activation unit that activates the analysis unit in accordance with the analysis parameters set by the setting unit.

2. the analysis unit includes a vacuum vessel into which a sample is introduced; The mass spectrometer is a vacuum pump for evacuating the inside of the vacuum vessel; 2. The mass spectrometer according to claim 1, further comprising a pump control unit that starts operation of the vacuum pump in response to the start switch being turned on.

3. a storage unit that stores the analysis parameters each time the analysis parameters are set by the setting unit, 3. The mass spectrometer according to claim 1, wherein the readout section reads out the analysis parameters stored in the storage section in response to the activation switch being turned on.

4. A storage unit for storing the set analysis parameters in response to an instruction from a user is further provided, 3. The mass spectrometer according to claim 1, wherein the readout section reads out the analysis parameters stored in the storage section in response to the activation switch being turned on.

5. A reception unit capable of receiving an instruction for an analysis parameter is further provided, 3. The mass spectrometer according to claim 1, wherein the setting section updates the set analysis parameters to the analysis parameters specified by the reception section when the analysis parameters are specified by the reception section.

6. Further comprising a heater for adjusting the temperature of a predetermined portion of the analysis unit; The analytical parameters include temperature; 3. The mass spectrometer according to claim 1, wherein the start-up unit starts the operation of the heater so that the heater operates at the temperature set by the setting unit.

7. A power supply device that supplies a voltage to the analysis unit; a heater for adjusting the temperature of the power supply device, The analytical parameters include temperature; 3. The mass spectrometer according to claim 1, wherein the start-up unit starts the operation of the heater so that the heater operates at the temperature set by the setting unit.

8. A gas supply unit for supplying a predetermined gas to the analysis unit is further provided. The analytical parameters include gas, The mass spectrometer according to claim 1 , wherein the starting unit starts an operation of the gas supply unit so as to supply the gas set by the setting unit.

9. Further comprising a power supply; The analysis parameters include voltage; 3. The mass spectrometer according to claim 1, wherein the starting unit starts the operation of the power supply device so as to supply the voltage set by the setting unit to the analysis unit.

10. the mass spectrometer is connected to a processing device that provides control instructions to the mass spectrometer; 3. The mass spectrometer according to claim 1, wherein the analysis unit is activated in response to a start command given from the processing unit.

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