WO2017094178A1 - 液体試料分析システム - Google Patents
液体試料分析システム Download PDFInfo
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- WO2017094178A1 WO2017094178A1 PCT/JP2015/084112 JP2015084112W WO2017094178A1 WO 2017094178 A1 WO2017094178 A1 WO 2017094178A1 JP 2015084112 W JP2015084112 W JP 2015084112W WO 2017094178 A1 WO2017094178 A1 WO 2017094178A1
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/62—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/62—Detectors specially adapted therefor
- G01N30/72—Mass spectrometers
- G01N30/7233—Mass spectrometers interfaced to liquid or supercritical fluid chromatograph
- G01N30/724—Nebulising, aerosol formation or ionisation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/62—Detectors specially adapted therefor
- G01N30/72—Mass spectrometers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J49/00—Particle spectrometers or separator tubes
- H01J49/0027—Methods for using particle spectrometers
- H01J49/0031—Step by step routines describing the use of the apparatus
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J49/00—Particle spectrometers or separator tubes
- H01J49/02—Details
- H01J49/04—Arrangements for introducing or extracting samples to be analysed, e.g. vacuum locks; Arrangements for external adjustment of electron- or ion-optical components
- H01J49/0431—Arrangements for introducing or extracting samples to be analysed, e.g. vacuum locks; Arrangements for external adjustment of electron- or ion-optical components for liquid samples
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J49/00—Particle spectrometers or separator tubes
- H01J49/02—Details
- H01J49/04—Arrangements for introducing or extracting samples to be analysed, e.g. vacuum locks; Arrangements for external adjustment of electron- or ion-optical components
- H01J49/0431—Arrangements for introducing or extracting samples to be analysed, e.g. vacuum locks; Arrangements for external adjustment of electron- or ion-optical components for liquid samples
- H01J49/0445—Arrangements for introducing or extracting samples to be analysed, e.g. vacuum locks; Arrangements for external adjustment of electron- or ion-optical components for liquid samples with means for introducing as a spray, a jet or an aerosol
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J49/00—Particle spectrometers or separator tubes
- H01J49/02—Details
- H01J49/10—Ion sources; Ion guns
- H01J49/107—Arrangements for using several ion sources
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N2030/022—Column chromatography characterised by the kind of separation mechanism
- G01N2030/027—Liquid chromatography
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/62—Detectors specially adapted therefor
- G01N2030/626—Detectors specially adapted therefor calibration, baseline
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/62—Detectors specially adapted therefor
- G01N30/72—Mass spectrometers
- G01N30/7233—Mass spectrometers interfaced to liquid or supercritical fluid chromatograph
- G01N30/7273—Desolvation chambers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J49/00—Particle spectrometers or separator tubes
- H01J49/02—Details
- H01J49/04—Arrangements for introducing or extracting samples to be analysed, e.g. vacuum locks; Arrangements for external adjustment of electron- or ion-optical components
- H01J49/0431—Arrangements for introducing or extracting samples to be analysed, e.g. vacuum locks; Arrangements for external adjustment of electron- or ion-optical components for liquid samples
- H01J49/044—Arrangements for introducing or extracting samples to be analysed, e.g. vacuum locks; Arrangements for external adjustment of electron- or ion-optical components for liquid samples with means for preventing droplets from entering the analyzer; Desolvation of droplets
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J49/00—Particle spectrometers or separator tubes
- H01J49/02—Details
- H01J49/10—Ion sources; Ion guns
- H01J49/16—Ion sources; Ion guns using surface ionisation, e.g. field-, thermionic- or photo-emission
- H01J49/165—Electrospray ionisation
Definitions
- the present invention relates to a liquid sample including an ion analyzer that ionizes and analyzes a liquid sample to be analyzed, and a liquid sample introduction mechanism that can selectively introduce a plurality of types of liquid samples into the ion analyzer. It relates to an analysis system.
- liquid chromatograph mass spectrometer As one of the devices for analyzing components contained in a liquid sample.
- components in a liquid sample temporally separated in a liquid chromatograph column are sequentially introduced into the mass spectrometer.
- Each component in the liquid sample introduced into the mass spectrometer is ionized by the ion source and then separated according to the mass to charge ratio.
- a standard liquid sample having a known mass-to-charge ratio of ions to be generated is introduced into the mass spectrometer. Some are provided with another ion source (second ion source).
- second ion source When such a mass spectrometer is used, ions derived from a standard liquid sample can be detected together with ions derived from a liquid sample to be analyzed, and mass calibration of measurement data can be performed.
- a mass spectrometer When a mass spectrometer is used, ions derived from a standard liquid sample can be detected together with ions derived from a liquid sample to be analyzed, and mass calibration of measurement data can be performed.
- a liquid sample introduction mechanism described in Patent Document 1 In order to selectively introduce one of a plurality of kinds of standard liquid samples into the second ion source of the mass spectrometer, for example, a liquid sample introduction mechanism described in Patent Document 1 is used.
- the mechanism includes a flow path switching unit having a plurality of subports and a main port that is switchably connected to one of the plurality of subports, and a plurality of liquid sample containers each containing a standard liquid sample. Are connected, and the other end is connected to one of the plurality of subports, and a second liquid supply flow path is connected from the main port to the second ion source of the mass spectrometer.
- this liquid sample introduction mechanism it is possible to alternatively introduce a plurality of standard liquid samples suitable for the liquid sample to be analyzed into the second ion source.
- the analysis is executed in the following flow.
- the analysis control unit that controls the analysis operation of each part shifts each part of the liquid chromatograph mass spectrometer to the state at the start of measurement based on a predetermined analysis execution condition.
- the channel switching unit is switched, and a predetermined standard liquid sample is introduced into the second ion source through the second liquid feeding channel.
- the liquid sample to be analyzed is introduced into the liquid chromatograph under the control of the analysis control unit, and the liquid chromatograph column is used for time. Separated components are sequentially introduced into the first ion source of the mass spectrometer. The components in the liquid sample to be analyzed introduced into the first ion source and the ions generated from the standard liquid sample introduced into the second ion source are separated according to the mass-to-charge ratio. The intensity of is measured.
- the liquid chromatograph mass spectrometer When the measurement is completed, the liquid chromatograph mass spectrometer performs a predetermined post-measurement processing on the data acquired during the measurement (for example, adds a header for identifying the analysis to the acquired data and saves it in a predetermined file format. Processing, peak detection processing of chromatogram and mass spectrum).
- ion analyzers such as liquid chromatograph mass spectrometers have been used to analyze a wide range of objects such as foods, drugs, and biological samples. In these analyses, a large number of specimens are comprehensively analyzed. Therefore, it is always required to improve the throughput by reducing the analysis time.
- liquid chromatograph mass spectrometer is given as an example of an apparatus for generating and analyzing ions from a liquid sample to be analyzed.
- a liquid sample introduction mechanism is provided for other ion analyzers (ion mobility analyzers, etc.).
- liquid sample analysis systems having a combined configuration are required to reduce analysis time and improve throughput.
- the problems to be solved by the present invention include an ion analyzer that ionizes and analyzes a liquid sample to be analyzed, and a liquid sample introduction mechanism that alternatively introduces a plurality of standard liquid samples into an ion source of the ion analyzer
- the analysis time is shortened and the throughput is improved.
- the predetermined standard liquid sample is introduced into the second ion source by switching the channel of the channel switching unit in the pre-measurement process.
- These operations require at least about 10 seconds.
- the pre-measurement process of the liquid chromatograph mass spectrometer is usually completed in a shorter time than this, in the conventional liquid sample analysis system, the remaining time is a waiting time.
- the liquid chromatograph mass spectrometer performs post-measurement post-processing as described above as a post-measurement process.
- the liquid sample introduction mechanism usually does not perform as a post-measurement process (or nothing), so conventional liquids In the sample analysis system, a waiting time has occurred in the liquid sample introduction mechanism.
- the inventor of the present invention has come up with the present invention by finding that improving this point can shorten the analysis time and increase the throughput.
- the present invention made to solve the above-mentioned problems is a liquid sample analysis system used to continuously analyze a plurality of liquid samples, a) an ion analyzer including a first ion source into which a liquid sample to be analyzed is introduced, and a second ion source into which a standard liquid sample is introduced; b) a liquid sample introduction mechanism having a flow path switching unit for introducing a plurality of standard liquid samples to the second ion source alternatively; c) In the ion analyzer, a pre-measurement step for shifting each part of the ion analyzer to a measurement start state, and introducing the liquid sample to be analyzed into the first ion source, and originating from the liquid sample to be analyzed A series of steps including a measurement step of measuring the ions of the sample together with ions derived from the standard liquid sample introduced into the second ion source by the liquid sample introduction mechanism and a post-measurement step of performing a predetermined post-measurement processing An analysis control unit that executes and
- the ion analyzer is, for example, a liquid chromatograph mass spectrometer.
- the predetermined post-measurement processing is, for example, processing for adding a header for identifying analysis to acquired data and storing it in a predetermined file format, or processing for extracting peaks from measurement data such as chromatographs and mass spectra It is.
- a pre-measurement process for shifting each part of the ion analyzer to the measurement start state and a post-measurement process for performing a predetermined post-measurement process are generally performed.
- the post-measurement process takes longer than the previous process.
- the operation that requires time in the liquid sample introduction mechanism is an operation that introduces the standard liquid sample into the second ion source.
- the post-measurement process in the ion analyzer and the pre-measurement process (introduction of the standard liquid sample) of the next analysis in the liquid sample introduction mechanism are performed in parallel. That is, since the time-consuming operation is performed in parallel in the ion analyzer and the liquid sample introduction mechanism, the waiting time can be shortened compared to the conventional case.
- the analysis time can be shortened and the throughput can be improved.
- the principal part block diagram regarding the liquid chromatograph part, mass separation part, and control part in one Example of the liquid sample analysis system which concerns on this invention The principal part block diagram regarding the liquid sample introduction mechanism and control part in the liquid sample analysis system of a present Example.
- the figure explaining the flow of the analysis operation in a present Example compared with the past.
- the liquid sample analysis system of the present embodiment includes a liquid chromatograph mass spectrometer that is an ion analyzer, and a liquid sample introduction mechanism that can alternatively introduce a plurality of standard liquid samples into the liquid chromatograph mass spectrometer. It has the structure which combined.
- the liquid chromatograph unit (LC unit) 1 includes mobile phase vessels 10a and 10b in which two different mobile phases are stored, a mixer 11 that mixes the two types of mobile phases at a predetermined ratio, and a mobile after mixing.
- a pump 12 for sucking the phase and feeding it at a constant flow rate; an injector 13 for injecting a predetermined amount of sample liquid into the mobile phase; and a column 14 for separating various compounds contained in the sample liquid in the time direction.
- a plurality of liquid samples to be analyzed housed in an autosampler (not shown) are injected into the injector 13 in a predetermined order and timing under the control of an analysis control unit described later.
- the mass analysis unit (MS unit) 2 includes an ionization chamber 21 that is maintained in an atmospheric pressure atmosphere, and an analysis chamber 24 that is evacuated by a vacuum pump (not shown) and maintained at a high vacuum, and a vacuum is stepped between them.
- a first intermediate vacuum chamber 22 and a second intermediate vacuum chamber 23 having higher degrees are disposed.
- the ionization chamber 21 and the first intermediate vacuum chamber 22 communicate with each other via a thin desolvation tube 213, and the first intermediate vacuum chamber 22 and the second intermediate vacuum chamber 23 are formed at the top of a conical skimmer 222.
- the small diameter orifice communicates with each other.
- Various components in the analysis liquid sample temporally separated by the column 14 of the liquid chromatograph unit 1 are sprayed into the ionization chamber 21 as micro droplets charged by the ESI probe 211.
- a standard liquid sample fed from the liquid sample introduction mechanism 3 to be described later is sprayed into the ionization chamber 21 as fine droplets charged by the ESI probe 212.
- These charged droplets collide with gas molecules in the ionization chamber 21 and are pulverized into finer droplets, which are quickly dried (desolvated) and ionized.
- ions are once trapped and accumulated by a quadrupole electric field formed by a high-frequency voltage applied to each electrode from a power source (not shown).
- Various ions accumulated in the ion trap 241 are given kinetic energy all at a predetermined timing and are emitted from the ion trap 241 toward a time-of-flight mass separator (TOF) 242 as a mass separator.
- the TOF 242 includes a reflectron electrode 243 to which a DC voltage is applied from a DC power source (not shown), and ions are folded by the action of a DC electric field formed thereby to reach the ion detector 244.
- the ions having a smaller mass to charge ratio fly faster and reach the ion detector 244 with a time difference corresponding to the magnitude of the mass to charge ratio.
- the ion detector 244 outputs a current corresponding to the number of reached ions as a detection signal.
- the output signal from the ion detector 244 is stored in the storage unit 91 of the control unit 90 described later.
- FIG. 2 shows the main configuration of the liquid sample introduction mechanism (CDS) 3.
- the liquid sample introduction mechanism 3 is a mechanism for introducing and ionizing a standard liquid sample for mass calibration into the ionization chamber 21 of the TOF-MS together with the liquid sample eluted from the column 14 of the liquid chromatograph unit 1, each having a different mass.
- Five types of standard liquid samples a to e in which components that generate a plurality of ions having a charge ratio are dissolved are prepared and stored in liquid sample containers 70a to 70e, respectively.
- the ESI probe 212 disposed in the ionization chamber 21 is provided with a nebulizer gas passage 41 connected to a nitrogen gas cylinder (atomization gas source) 40.
- the nebulizer gas channel 41 is provided with a valve 42 and a branching portion 43 in order from the side closer to the nitrogen gas cylinder 40, and the liquid feeding gas channel 50 is connected to the branching portion 43.
- a regulator 51 and a branching part 52 are provided in the liquid feeding gas channel 50, and a relief channel 54 connected to the relief valve 53 is connected to the branching part 52.
- the liquid feed gas channel 50 is branched into five liquid feed gas sub-channels 50a to 50e.
- the ends of the liquid feed gas sub-channels 50a to 50e are connected to spaces above the liquid surfaces in the containers (liquid sample containers) 70a to 70e in which standard liquid samples are stored, respectively.
- an air release flow path 56 connected to the air release valve 55 is provided in parallel with each of the liquid feed gas sub flow paths 50a to 50e.
- a standard sample solution flow path 60 is connected to the ESI probe 212.
- the other end of the standard sample solution flow path 60 is connected to the main port 61g of the 6-position 7-way valve 61.
- the 6-position 7-way valve 61 has six sub-ports 61a to 61f, and these sub-ports 61a to 61f are alternatively connected to the main port 61g.
- One end of each of the sample liquid feeding sub flow paths 60a to 60e is connected to each of the sub ports 61a to 61e.
- the other ends of the sample liquid feeding sub-channels 60a to 60e are connected below the liquid level in the liquid sample containers 70a to 70e (that is, in the liquid).
- an air release channel 62 is connected to the sub port 61f.
- the other end of the air release channel 62 is open to the atmosphere, and when the main port 61g is connected to the sub port 61f, the standard sample liquid supply channel 60 is opened to the air, and the liquid supply of the standard liquid sample is stopped. The In the meantime, the supply of the nebulizer gas to the ESI probe 212 is continued. Thereby, the pressure in the ionization chamber 21 and the state of the airflow are maintained constant, and fluctuations in the ionization efficiency of the liquid sample to be analyzed introduced from the liquid chromatograph unit 1 are suppressed.
- Each part of the liquid sample introduction mechanism 3 operates as follows.
- nitrogen gas is supplied from the nitrogen gas cylinder 40 to the nebulizer gas flow path 41 at a flow rate of 3 L / min and a pressure of +500 kPa.
- L is a flow path length from the ESI probe 212 to the valve 42.
- the notation +500 kPa means that the pressure is 500 kPa higher than the pressure in the ionization chamber 21 (101.325 kPa).
- the nitrogen gas flowing into the liquid feeding gas flow path 50 from the branch portion 43 is decompressed to, for example, +100 kPa by the regulator 51, and sent to the liquid sample containers 70a to 70e through the liquid feeding gas sub flow paths 50a to 50e. That is, the pressure of the liquid feeding gas is adjusted independently of the pressure of the nebulizer gas, and the liquid feeding amount of the liquid sample is appropriately changed.
- the insides of the liquid sample containers 70a to 70e are simultaneously pressurized by the liquid feeding gas, and the standard liquid samples stored in the liquid sample containers 70a to 70e are sent to the sample liquid feeding subchannels 60a to 60e, respectively.
- the relief valve 53 is opened and nitrogen gas is released.
- the standard liquid sample (standard liquid sample a accommodated in the liquid sample container 70a) sent to one of the sub-ports (eg 61a) is sent through the main port 61g. It flows into the liquid flow path 60 and is introduced into the ESI probe 212.
- the flow path of the 6-position 7-way valve 61 is sequentially switched by an analysis control unit 93 to be described later so that a standard liquid sample used in each analysis is introduced.
- liquid sample introduction mechanism 3 used in this embodiment, a part of the nebulizer gas is introduced into the liquid sample containers 70a to 70e, and the standard liquid sample in the liquid sample containers 70a to 70e is converted into the ESI probe 212 by the pressure of the nebulizer gas. Therefore, there is no need to provide a supply source of liquid supply gas for supplying the standard liquid sample to the ESI probe 212, and there is an advantage that the liquid sample can be ionized at low cost.
- control unit 90 The analysis operation of the liquid chromatograph unit 1, the mass analysis unit 2, and the liquid sample introduction mechanism 3 is controlled by the control unit 90.
- control unit 90 includes an analysis condition setting unit 92 and an analysis control unit 93 as functional blocks.
- the entity of the control unit 90 is a computer in which necessary software is installed, and an input unit 94 and a display unit 95 are connected to each other.
- each liquid sample to be analyzed is separated into components by the column 14 of the liquid chromatograph 1 and then introduced into the ESI probe 211 of the mass analyzer 2 and ionized, and then introduced into the ESI probe 212 from the liquid sample introduction mechanism 3 and ionized. It is detected by the ion detector 244 together with the standard liquid sample (its ions).
- the liquid sample to be analyzed is appropriately called an analysis sample, and the standard liquid sample is called a standard sample as appropriate.
- the user Prior to the execution of the continuous analysis, the user inputs the analysis conditions in the liquid chromatograph unit 1, the analysis conditions in the mass analysis unit 2, and the analysis conditions in the liquid sample introduction mechanism 3 for each of the plurality of analysis samples. Enter from.
- the analysis conditions in the liquid chromatograph unit 1 include, for example, measurement conditions such as the type of mobile phase, mixing ratio, and flow rate, as well as conditions related to peak detection and peak list creation processing of a chromatograph created from measurement data.
- the analysis conditions in the mass spectrometer 2 include, for example, measurement types (scan measurement, selected ion monitoring (SIM) measurement, multiple reaction monitoring (MRM) measurement, etc.) and parameters corresponding to the measurement types (in the case of scan measurement, mass In addition to the scanning range, mass scanning speed, etc. (selected mass-to-charge ratio, etc. for SIM and MRM measurements), processing conditions for mass calibration of measurement data, peak detection of mass spectra created from measurement data, peak list creation processing, etc. Is also included.
- measurement types scan measurement, selected ion monitoring (SIM) measurement, multiple reaction monitoring (MRM) measurement, etc.
- parameters corresponding to the measurement types in the case of scan measurement, mass In addition to the scanning range, mass scanning speed, etc. (selected mass-to-charge ratio, etc. for SIM and MRM measurements)
- processing conditions for mass calibration of measurement data peak detection of mass spectra created from measurement data, peak list creation processing, etc. Is also included.
- the analysis conditions in the liquid sample introduction mechanism 3 include, for example, the type and flow rate of the standard sample to be used.
- the liquid chromatograph unit 1 performs a gradient analysis in which the measurement is performed while changing the mixing ratio of the mobile phase to separate the components in the analysis sample, and the ions generated from these components are converted into product ions.
- a case where three-dimensional chromatogram data is acquired by scanning measurement will be described as an example.
- the analysis condition setting unit 92 sets the analysis conditions of the liquid chromatograph unit 1 and the mass analysis unit 2 for each liquid sample (for each analysis) and describes them in the method file. And stored in the storage unit 91.
- the analysis conditions of the liquid sample introduction mechanism 3 a series of analysis conditions in the continuous analysis are set, and a method file describing the analysis conditions is stored in the storage unit 91.
- the parameter is basically only information relating to the type of the standard liquid sample (that is, information relating to flow path switching of the 6-position 7-way valve 61), and other parameters can be fixed. Since there are many cases, there is no worry that it takes a long time to read out a plurality of analysis conditions in one method file. Therefore, it is only necessary to read the analysis conditions for all the series of analyzes at the start of the first analysis.
- the analysis control unit 93 reads out a method file in which the analysis conditions of the first analysis sample in the liquid chromatograph unit 1 and the mass analysis unit 2 are described, and the series in the liquid sample introduction mechanism 3. Read the method file in which all the analysis conditions are described (read method file).
- the analysis control unit 93 shifts each part of the liquid chromatograph unit 1 and the mass analysis unit 2 to the measurement start state, and in parallel with this, switches the flow path of the liquid sample introduction mechanism 3 to change the first analysis sample.
- a standard sample used in the analysis is introduced into the ESI probe 212 (pre-measurement step).
- the operation of the 6-position 7-way valve 61 takes about 1 second, and the standard sample in the sample-feeding sub-flow path is transferred from the 6-position 7-way valve 61 through the standard sample feed flow path 60 to the ESI. It takes about 10 seconds to reach the probe 212.
- the liquid chromatograph 1 and the mass spectrometer 2 complete the pre-measurement process in a shorter time than this, and wait until the pre-measurement process in the liquid sample introduction mechanism 3 is completed (waiting time).
- the time required for the pre-measurement process and the post-measurement process described later in the liquid chromatograph unit 1 and the mass spectrometer unit 2 are set to the same length. If it is longer, the other waits until one process is completed.
- the analysis sample is introduced into the injector 13 of the liquid chromatograph unit 1 and measurement is started.
- the analysis sample introduced from the injector 13 is separated into components by the column 14, introduced into the ESI probe 211 and ionized, and mass-separated together with the standard sample ions introduced into the ESI probe 212 of the liquid sample introduction mechanism 3. And detected by the ion detector 244.
- Output signals from the ion detector 244 are sequentially sent to the control unit 90 and accumulated in the storage unit 91 (measurement process).
- the analysis control unit 93 reads the measurement data stored in the storage unit 91, and creates and analyzes three-dimensional chromatogram data including three axes of time, mass-to-charge ratio, and ion intensity. Add a header to identify And the peak of a chromatogram is detected and a peak list is created, and also a mass spectrum is calibrated and a mass peak is detected and a peak list is created (post-measurement step 1).
- the liquid chromatograph unit 1 performs the equilibration processing of the column 14. That is, a process of replacing the inside of the column 14 into which the mobile phase having the mixing ratio at the end of the gradient analysis is introduced with a mobile phase having a standard mixing ratio is performed for equilibration (post-measurement step 2).
- the 6-position seven-way valve 61 is operated in the liquid sample introduction mechanism 3 in parallel with the post-measurement process relating to the liquid chromatograph unit 1 and the mass spectrometer unit 2 for the next analysis.
- a pre-measurement step for introducing a standard sample to be used into the ESI probe 212 is executed (FIG. 3A).
- the method file reading related to the analysis of the next analysis sample and the pre-measurement process are continued. Execute.
- the analysis sample is injected into the injector 13 and measurement is started.
- the post-measurement process is performed again in the liquid chromatograph section 1 and the mass analysis section 2, and in parallel with this, the pre-measurement process related to the next analysis is performed in the liquid sample introduction mechanism 3. Thereafter, the above-described procedure is repeatedly executed until the analysis of all analysis samples is completed.
- the standard sample used in the measurement just completed in the liquid sample introduction mechanism 3 is used as the ESI probe 212 until the post-measurement process relating to the liquid chromatograph unit 1 and the mass spectrometer unit 2 is completed. We waited in state that we introduced to.
- the pre-measurement process of the liquid sample introduction mechanism 3 is executed (the standard liquid sample used in the next analysis is operated by operating the 6-position 7-way valve 61). Was introduced). That is, as shown in FIG. 3 (b), the pre-measurement process and the measurement process are started simultaneously in the liquid chromatograph unit 1, the mass analysis unit 2, and the liquid sample introduction mechanism 3, respectively. While the post-measurement process related to the analysis unit 2 is being performed, the liquid sample introduction mechanism 3 is on standby.
- the post-measurement process takes longer than the pre-measurement process.
- that time has conventionally been the waiting time of the liquid sample introduction mechanism 3.
- the liquid sample introduction mechanism 3 mainly takes time in the pre-measurement process (operation for introducing the standard liquid sample into the ESI probe 212).
- the liquid chromatograph unit 1 and mass analysis unit 2 and the liquid sample introduction mechanism 3 perform time-consuming operations in parallel, so the waiting time of each unit is shortened and the analysis time is shortened. Throughput is improved.
- the post-measurement process in the liquid sample introduction mechanism 3 is not performed.
- the column 14 is equilibrated or the temperature of the column 14 is increased.
- a sub-port 61f of the 6-position 7-way valve 61 is connected to the main port 61g for a predetermined time (for example, a time obtained by subtracting the time required for the next pre-measurement process from the equilibration time or cooling time of the column in the liquid chromatograph section 1)
- the pre-measurement process of the next analysis may be started (FIG. 4).
- this post-measurement process since the liquid supply of the standard sample is stopped, it is possible to prevent the standard liquid sample from being consumed more than necessary
- each unit independently controls the control unit. It can also be set as the structure which has. The principal part structure of the modification which is the example is shown in FIG.
- a liquid chromatograph control unit 15 that controls the analysis operation of each part of the liquid chromatograph unit 1, a mass analysis control unit 25 that controls the analysis operation of each part of the mass analysis unit 2, and each part of the liquid sample introduction mechanism 3
- a liquid sample introduction control unit 80 for controlling the analysis operation is provided, and each control unit includes storage units 151, 251 and 801 and analysis execution units 152, 252, and 802, respectively.
- the liquid chromatograph control unit 15, the mass spectrometry control unit 25, and the liquid sample introduction control unit 80 operate under the control of the analysis control unit 93a of the main control unit 90a. Input of analysis conditions by the user is performed through an input unit 94a connected to the main control unit 90a, and analysis results and the like are displayed on the screen of the display unit 95a.
- the analysis condition setting unit 92a describes the analysis conditions of the liquid chromatograph unit 1 and the mass analysis unit 2 in the method file for each liquid sample (each analysis), and the storage unit 91a. Save to.
- the analysis conditions of the liquid sample introduction mechanism 3 a method file describing a series of analysis conditions in the continuous analysis is described and stored in the storage unit 91a.
- the analysis execution unit 152 of the liquid chromatograph control unit 15 describes the analysis conditions of the first analysis sample in the liquid chromatograph unit 1 from the storage unit 91a. Read the method file and execute the pre-measurement process.
- the analysis execution unit 252 of the mass spectrometry control unit 25 executes the pre-measurement process in the same procedure.
- the analysis execution unit 802 of the liquid sample introduction control unit 80 reads a method file describing a series of analysis conditions relating to the analysis of a plurality of analysis samples from the storage unit 91a and saves the method file in the storage unit 801 of the liquid sample introduction control unit 80. At the same time, a pre-measurement process related to the analysis of the first analysis sample is executed.
- the liquid chromatograph unit 1 When the pre-measurement process in the liquid chromatograph unit 1, the mass analysis unit 2, and the liquid sample introduction mechanism 3 is completed, the measurement of the analysis sample is started simultaneously in these units, and the measurement data is stored in the storage unit 251 in the mass analysis unit 2. Accumulated.
- the liquid chromatograph unit 1 is configured to include a detector such as an absorptiometer, the liquid chromatograph unit 1 also accumulates measurement data in 151.
- the post-measurement process is performed in the liquid chromatograph unit 1 and the mass analysis unit 2, respectively.
- the sample introduction mechanism 3 a pre-measurement process relating to the analysis of the next analysis sample is performed.
- Measurement data subjected to predetermined processing in the liquid chromatograph unit 1 and the mass analysis unit 2 is stored in the respective storage units 151 and 251, and after all the series of analyzes are completed, the storage unit of the main control unit 90 a It may be transferred to 91a, or may be transferred to the storage unit 91a of the main control unit 90a at the end of the post-measurement process in each analysis.
- the post-measurement process is lengthened by the time required for the transfer of measurement data, but before the end of the series of analysis, the user may confirm the chromatogram and mass spectrum by displaying them on the display unit 95a at any time. There is an advantage that you can. Thereafter, the above operation is repeated until a series of analysis is completed.
- a liquid chromatograph mass spectrometer is given as an example of an ion analyzer, but a normal mass spectrometer (a mass spectrometer that directly introduces an analysis sample into the ESI probe 211), an ion mobility analyzer, or the like.
- Various ion analyzers can be configured in the same manner as described above.
- the specific contents of the pre-measurement process and the post-measurement process in the above embodiment are examples assuming a liquid chromatograph mass spectrometer, and appropriate operations are executed according to the type of the ion analyzer, the analysis purpose, and the like.
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Abstract
Description
まず、液体クロマトグラフ質量分析装置では、その各部の分析動作を制御する分析制御部が、予め決められた分析の実行条件に基づいて液体クロマトグラフ質量分析装置の各部を測定開始時の状態に移行させる。これと並行して、液体試料導入機構では流路切替部が切り替えられ、所定の標準液体試料が第2送液流路を通じて第2イオン源に導入される。
液体クロマトグラフ質量分析装置と液体試料導入機構の両方において上記動作が完了すると、前記分析制御部による制御の下で分析対象の液体試料が液体クロマトグラフに導入され、該液体クロマトグラフのカラムで時間的に分離された成分が質量分析装置の第1イオン源に順次導入される。第1イオン源に導入された分析対象の液体試料中の成分と第2イオン源に導入された標準液体試料からそれぞれ生成されたイオンは質量電荷比に応じて分離され、質量電荷比ごとにイオンの強度が測定される。
測定を完了すると、液体クロマトグラフ質量分析装置では、測定中に取得したデータに対する所定の測定終了後処理(例えば、取得データに分析を識別するためのヘッダーを追加して所定のファイル形式で保存する処理や、クロマトグラムやマススペクトルのピーク検出処理)が行われる。
本発明者は、この点を改善することによって分析時間を短縮してスループットを向上できることを見いだして本発明に想到した。
a) 分析対象の液体試料が導入される第1イオン源と、標準液体試料が導入される第2イオン源を備えたイオン分析装置と、
b) 複数の標準液体試料を択一的に前記第2イオン源に導入するための流路切替部を備えた液体試料導入機構と、
c) 前記イオン分析装置において、該イオン分析装置の各部を測定開始状態に移行させる測定前工程と、前記分析対象の液体試料を前記第1イオン源に導入して、該分析対象の液体試料由来のイオンを前記液体試料導入機構により前記第2イオン源に導入される標準液体試料由来のイオンとともに測定する測定工程と、所定の測定終了後処理を行う測定後工程とを含む一連の工程を繰り返し実行するとともに、前記所定の測定後工程と並行して、前記液体試料導入機構において前記流路切替部を次の分析において用いられる標準液体試料が導入される流路に切り替える分析制御部と
を備えることを特徴とする。
前記所定の測定終了後処理とは、例えば取得データに分析を識別するためのヘッダーを追加して所定のファイル形式で保存する処理や、クロマトグラフやマススペクトル等の測定データからピークを抽出する処理である。
窒素ガスボンベ40からネブライザガス流路41には、例えば3L/minの流量、+500kPaの圧力で窒素ガスが送給される。ここで、LはESIプローブ212からバルブ42までの流路長である。また、+500kPaという表記は、イオン化室21内の圧力(101.325kPa)よりも500kPa高い圧力であることを意味する。
使用者による分析条件の入力等は主制御部90aに接続された入力部94aを通じて行われ、また分析結果等は表示部95aの画面に表示される。
使用者により上記分析条件が入力されると、分析条件設定部92aは、液体クロマトグラフ部1及び質量分析部2の分析条件を液体試料ごと(1分析ごと)にメソッドファイルに記述し記憶部91aに保存する。一方、液体試料導入機構3の分析条件については、連続分析における一連の分析条件を記述したメソッドファイルを記述し記憶部91aに保存する。
上記実施例では、イオン分析装置の例として液体クロマトグラフ質量分析装置を挙げたが、通常の質量分析装置(ESIプローブ211に直接、分析試料を導入する質量分析装置)やイオン移動度分析装置等、種々のイオン分析装置についても上記同様に構成することができる。上記実施例における測定前工程や測定後工程の具体的な内容は液体クロマトグラフ質量分析装置を想定した一例であり、イオン分析装置の種類や分析目的等に応じて適宜の動作が実行される。
10a、10b…移動相容器
11…ミキサー
12…ポンプ
13…インジェクタ
14…カラム
15…液体クロマトグラフ制御部
151…記憶部
152…分析実行部
2…質量分析部
21…イオン化室
211、212…ESIプローブ
213…脱溶媒管
22…第1中間真空室
221…イオンガイド
222…スキマー
23…第2中間真空室
231…イオンガイド
24…分析室
241…イオントラップ
242…飛行時間型質量分離器(TOF)
243…リフレクトロン電極
244…イオン検出器
25…質量分析制御部
251…記憶部
252…分析実行部
3…液体試料導入機構
40…窒素ガスボンベ
41…ネブライザガス流路
42…バルブ
43…分岐部
50…送液ガス流路
50a~50e…送液ガスサブ流路
51…レギュレータ
52…分岐部
53…リリーフバルブ
54…リリーフ流路
55…大気開放バルブ
56…大気開放流路
60…標準試料送液流路
60a~60e…試料送液サブ流路
61…6ポジション7方バルブ
62…大気開放流路
70a~70e…液体試料容器
80…液体試料導入制御部
801…記憶部
802…分析実行部
90、90a…制御部
91、91a…記憶部
92、92a…分析条件設定部
93、93a…分析制御部
94、94a…入力部
95、95a…表示部
Claims (6)
- 複数の液体試料の分析を連続して実行するために用いられる液体試料分析システムであって、
a) 分析対象の液体試料が導入される第1イオン源と、標準液体試料が導入される第2イオン源を備えたイオン分析装置と、
b) 複数の標準液体試料を択一的に前記第2イオン源に導入するための流路切替部を備えた液体試料導入機構と、
c) 前記イオン分析装置において、該イオン分析装置の各部を測定開始状態に移行させる測定前工程と、前記分析対象の液体試料を前記第1イオン源に導入して、該分析対象の液体試料由来のイオンを前記液体試料導入機構により前記第2イオン源に導入される標準液体試料由来のイオンとともに測定する測定工程と、所定の測定終了後処理を行う測定後工程とを含む一連の工程を繰り返し実行するとともに、前記イオン分析装置における前記測定後工程と並行して、前記液体試料導入機構において前記流路切替部を次の分析において用いられる標準液体試料が導入される流路に切り替える分析制御部と
を備えることを特徴とする液体試料分析システム。 - 前記分析制御部が、前記液体試料導入機構において、前記測定工程の後、前記次の分析において用いられる標準液体試料を導入する前に前記標準液体試料の導入を停止する測定後工程を実行する
ことを特徴とする請求項1に記載の液体試料分析システム。 - 前記流路切替部が1つのメインポートと該1つのメインポートに択一的に接続される複数のサブポートを有し、
前記液体試料導入機構が、さらに
前記第2イオン源に霧化促進ガスを供給する霧化促進ガス流路と、
前記複数の標準液体試料がそれぞれ収容された、密閉容器である複数の液体試料容器と、
前記霧化促進ガスの流路の途中に一端が接続され、他端が分岐して前記複数の液体試料容器のそれぞれの内部の液面よりも上方に接続される送液ガス流路と、
一端が前記第2イオン源に接続され、他端が前記メインポートに接続される試料送液メイン流路と、
一端が前記複数の液体試料容器のそれぞれの内部の液面よりも下方に接続され、他端が前記複数のサブポートに接続される、複数の流路からなる試料送液サブ流路と
を備えることを特徴とする請求項1に記載の液体試料分析システム。 - 前記サブポートのうちの1つが大気開放されている
ことを特徴とする請求項3に記載の液体試料分析システム。 - 前記液体試料導入機構が、さらに
前記送液ガス流路を流れるガスの圧力を、前記第2イオン源に供給される霧化促進ガスの圧力と独立に調整するための送液ガス圧調整部
を備えることを特徴とする請求項3に記載の液体試料分析システム。 - 前記イオン分析装置が液体クロマトグラフ質量分析装置である
ことを特徴とする請求項1に記載の液体試料分析システム。
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JP2019049554A (ja) * | 2017-09-07 | 2019-03-28 | サーモ フィッシャー サイエンティフィック (ブレーメン) ゲーエムベーハー | 質量分析を用いた同位体比の決定 |
WO2020110583A1 (ja) * | 2018-11-29 | 2020-06-04 | 株式会社島津製作所 | 有害物質分析システム及び有害物質分析用プログラム |
WO2020129118A1 (ja) * | 2018-12-17 | 2020-06-25 | 株式会社島津製作所 | 質量分析装置 |
US11761934B2 (en) | 2018-10-12 | 2023-09-19 | Shimadzu Corporation | Automatic analysis device |
Families Citing this family (3)
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WO2020162438A1 (ja) * | 2019-02-04 | 2020-08-13 | 株式会社日立ハイテク | 液体クロマトグラフ質量分析装置 |
JP7226524B2 (ja) * | 2019-03-13 | 2023-02-21 | 株式会社島津製作所 | 液体クロマトグラフ用送液システム |
CN112540114B (zh) * | 2019-09-20 | 2024-03-26 | 哈米尔顿森德斯特兰德公司 | 用于串联离子迁移率光谱测定的电离 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5703360A (en) * | 1996-08-30 | 1997-12-30 | Hewlett-Packard Company | Automated calibrant system for use in a liquid separation/mass spectrometry apparatus |
JP2002245962A (ja) * | 2000-12-12 | 2002-08-30 | Jeol Ltd | エレクトロスプレー・イオン源 |
JP2004342620A (ja) * | 1999-04-15 | 2004-12-02 | Hitachi Ltd | 質量分析装置 |
JP2005181236A (ja) * | 2003-12-24 | 2005-07-07 | Hitachi High-Technologies Corp | イオントラップ/飛行時間型質量分析計による精密質量測定方法 |
JP2010524199A (ja) * | 2007-04-14 | 2010-07-15 | スミスズ ディテクション−ワトフォード リミテッド | 検出器およびイオン源 |
JP2014508937A (ja) * | 2011-03-07 | 2014-04-10 | マイクロマス・ユーケイ・リミテッド | 四重極質量分析器の動的分解能補正 |
WO2016002045A1 (ja) * | 2014-07-03 | 2016-01-07 | 株式会社島津製作所 | 質量分析装置 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11144675A (ja) * | 1997-11-10 | 1999-05-28 | Hitachi Ltd | 分析装置 |
GB0305796D0 (en) * | 2002-07-24 | 2003-04-16 | Micromass Ltd | Method of mass spectrometry and a mass spectrometer |
AU2004235353B2 (en) * | 2003-04-25 | 2007-11-15 | Griffin Analytical Technologies, Inc. | Instrumentation, articles of manufacture, and analysis methods |
JP4254546B2 (ja) * | 2004-01-09 | 2009-04-15 | 株式会社島津製作所 | 質量分析装置 |
US20060255261A1 (en) * | 2005-04-04 | 2006-11-16 | Craig Whitehouse | Atmospheric pressure ion source for mass spectrometry |
CA2590762C (en) * | 2006-06-08 | 2013-10-22 | Microsaic Systems Limited | Microengineered vacuum interface for an ionization system |
JP2009031113A (ja) * | 2007-07-26 | 2009-02-12 | Shimadzu Corp | 液体クロマトグラフ質量分析装置 |
WO2011146425A1 (en) * | 2010-05-17 | 2011-11-24 | Ohio University | Microsecond time-resolved mass spectrometry |
US8800352B2 (en) * | 2011-07-15 | 2014-08-12 | Thermo Finnigan Llc | Method for automatic optimization of liquid chromatography autosampler |
GB2521579B (en) * | 2012-10-10 | 2018-12-19 | California Inst Of Techn | Mass spectrometer, system and use of the mass spectrometer for determining isotopic anatomy of compounds |
CN103529152B (zh) * | 2013-10-15 | 2015-07-01 | 中国工程物理研究院化工材料研究所 | 一种基于质谱仪的自反馈气体定量装置及其使用方法 |
-
2015
- 2015-12-04 WO PCT/JP2015/084112 patent/WO2017094178A1/ja active Application Filing
- 2015-12-04 EP EP15909808.6A patent/EP3385709A4/en not_active Withdrawn
- 2015-12-04 US US15/780,829 patent/US10564136B2/en active Active
- 2015-12-04 CN CN201580085097.3A patent/CN108291892B/zh active Active
- 2015-12-04 JP JP2017553583A patent/JP6455607B2/ja active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5703360A (en) * | 1996-08-30 | 1997-12-30 | Hewlett-Packard Company | Automated calibrant system for use in a liquid separation/mass spectrometry apparatus |
JP2004342620A (ja) * | 1999-04-15 | 2004-12-02 | Hitachi Ltd | 質量分析装置 |
JP2002245962A (ja) * | 2000-12-12 | 2002-08-30 | Jeol Ltd | エレクトロスプレー・イオン源 |
JP2005181236A (ja) * | 2003-12-24 | 2005-07-07 | Hitachi High-Technologies Corp | イオントラップ/飛行時間型質量分析計による精密質量測定方法 |
JP2010524199A (ja) * | 2007-04-14 | 2010-07-15 | スミスズ ディテクション−ワトフォード リミテッド | 検出器およびイオン源 |
JP2014508937A (ja) * | 2011-03-07 | 2014-04-10 | マイクロマス・ユーケイ・リミテッド | 四重極質量分析器の動的分解能補正 |
WO2016002045A1 (ja) * | 2014-07-03 | 2016-01-07 | 株式会社島津製作所 | 質量分析装置 |
Non-Patent Citations (1)
Title |
---|
See also references of EP3385709A4 * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019030886A1 (ja) * | 2017-08-10 | 2019-02-14 | 株式会社島津製作所 | 液体試料導入方法及び液体試料導入装置 |
US11309173B2 (en) | 2017-08-10 | 2022-04-19 | Shimadzu Corporation | Liquid sample introduction method and liquid sample introduction device |
JP2019049554A (ja) * | 2017-09-07 | 2019-03-28 | サーモ フィッシャー サイエンティフィック (ブレーメン) ゲーエムベーハー | 質量分析を用いた同位体比の決定 |
US11761934B2 (en) | 2018-10-12 | 2023-09-19 | Shimadzu Corporation | Automatic analysis device |
WO2020110583A1 (ja) * | 2018-11-29 | 2020-06-04 | 株式会社島津製作所 | 有害物質分析システム及び有害物質分析用プログラム |
WO2020129118A1 (ja) * | 2018-12-17 | 2020-06-25 | 株式会社島津製作所 | 質量分析装置 |
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