JP3593085B2 - Sample concentrator and organic trace component detector - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an apparatus for concentrating organic trace components such as PCBs and dioxins in treated water discharged from a PCB processing facility, for example, and a detection apparatus using the same.
[0002]
[Background Art]
In recent years, the production and import of PCB (Polychlorinated biphenyl, a general term for chlorinated isomers of biphenyl) has been prohibited because of its strong toxicity. Although production of this PCB began in Japan around 1954, the adverse effects on living organisms and the environment became apparent in the wake of the Kanemi Yusho incident. There was a background.
[0003]
PCB is a biphenyl skeleton in which 1 to 10 chlorine atoms are substituted. There are theoretically 209 types of isomers depending on the number and positions of the substituted chlorine atoms. The body has been identified. In addition, the physical and chemical properties, in vivo stability, and environmental dynamics of these isomers are diverse, and the current situation is that the chemical analysis of PCBs and the manner of environmental pollution are complicated. Furthermore, PCB is one of the persistent organic pollutants, and has properties that it is not easily decomposed in the environment, is fat-soluble, has a high bioconcentration rate, is semi-volatile, and can be moved through the atmosphere. In addition, it is reported that it remains widely in the environment such as water and living things.
As a result, since PCB is extremely stable in the body, it is accumulated in the body and causes chronic poisoning (skin damage, liver damage, etc.), and carcinogenicity and reproductive / developmental toxicity are recognized.
[0004]
Since PCB has been widely used as insulating oil for transformers and capacitors, it is necessary to treat the PCB. The applicant has previously proposed a hydrothermal decomposition apparatus for detoxifying the PCB. (See JP-A-11-253796, JP-A-2000-126588 and others). FIG. 5 shows an example of the outline of this hydrothermal decomposition apparatus.
[0005]
As shown in FIG. 7, the hydrothermal decomposition apparatus 120 includes a cylindrical primary reactor 122 provided with a cyclone separator 121, a pressurizing pump 124 for pressurizing a treatment liquid 123 of PCB, H ₂ O, and NaOH, It is provided with a preheater 125 for preheating the mixed solution, a secondary reactor 126 having a configuration wound with piping, a cooler 127 and a pressure reducing valve 128. Downstream of the pressure reducing valve 127, a gas-liquid separator 129 and an activated carbon tank 130 are arranged. Exhaust gas (CO ₂ ) 131 is discharged from a chimney 132 to the outside, and waste water (H ₂ O, NaCl) 133 is discharged. Separately, wastewater treatment is performed as needed.
Further, H ₂ O and NaOH are introduced into the piping 134 of the PCB that becomes the processing liquid 123. The oxygen pipe 135 is directly connected to the primary reactor 125.
[0006]
In the above apparatus, the pressure inside the primary reactor 122 is increased to 26 MPa by pressurization by the pressurizing pump 124. Further, the preheater 125 preheats the mixed treatment liquid 123 of PCB, H ₂ O and NaOH to about 300 ° C. Further, oxygen is spouted into the primary reactor 122, and the temperature rises to 380 ° C to 400 ° C due to the internal reaction heat. The cyclone separator 121 separates large Na ₂ CO ₃ crystal particles precipitated in the primary reactor 122 and sends Na ₂ CO ₃ fine particles to the secondary reactor 126. The operation of the cyclone separator 121 prevents the secondary reactor 126 from being blocked. By this stage, the PCB has undergone a dechlorination reaction and an oxidative decomposition reaction, and has been decomposed into NaCl, CO ₂ and H ₂ O. Next, in the cooler 127, the fluid from the secondary reactor 126 is cooled to about 100 ° C., and the pressure is reduced to the atmospheric pressure by the pressure reducing valve 128 in the subsequent stage. Then, the CO ₂ and steam and the treated water are separated by the gas-liquid separator 129, and the CO ₂ and steam pass through the activated carbon tank 130 and are discharged into the environment.
[0007]
By treating a PCB-containing container (for example, a transformer or a condenser) or the like using such a processing device, complete harmlessness is achieved, but it is also important to quickly monitor the PCB concentration in the facility. Conventionally, a method has been adopted in which the PCB is concentrated into a liquid by gas sampling and the concentrated liquid is analyzed. However, since this measurement requires several hours to several tens of hours, rapid monitoring was not possible.
[0008]
However, as a method of measuring a trace amount of PCB in a gas for monitoring, a mass spectrum analyzer combining a multiphoton ionization detector and a time-of-flight type analyzer (Time of Flight Spectroscopy: TOFMAS) has been conventionally proposed. I have.
The outline of this conventional analyzer will be described with reference to FIG.
[0009]
As shown in FIG. 8, a sample gas 1 is supplied from a pulse nozzle 2 into a vacuum chamber 3 as a supersonic free jet, and the free jet is cooled by adiabatic expansion. Due to such cooling, a gas whose vibration / rotation level is biased toward the low energy side and whose wavelength selectivity is increased has its ionization efficiency, which efficiently absorbs resonant multiphotons such as the laser 4, increased. The molecules in the ionized gas are accelerated by the accelerating electrode 5, are given an acceleration inversely proportional to the mass, fly in the flight tube 6, are reflected by the reflectron 7, and enter the detector 8. By measuring the time of flight in the flight tube 6, the mass of the molecule or atomic particle can be obtained by calculation, and the PCB concentration of the measurement object can be obtained from the comparison of the signal intensity of the detector 8.
[0010]
Such an apparatus is excellent in principle in that a trace substance can be detected, but has a problem that the detection sensitivity is low because a laser pulse time width uses a nanosecond laser.
Therefore, it is desired to efficiently concentrate the sample gas 1.
[0011]
Further, when the amount of water in the sample gas 1 is large, the detector 9 detects a large amount of noise as noise. Therefore, when measuring the PCB concentration in the wastewater, it is desirable to remove the PCB in advance.
[0012]
In recent years, the measurement of environmental hormones in wastewater discharged from combustion facilities such as various incinerators or boilers has a very small amount of measurement target, and thus the appearance of a high-performance detection device is desired.
[0013]
The present invention has been made in view of the above problems, and provides a sample concentrator capable of performing quick and highly sensitive analysis when monitoring the concentration of a trace component such as a PCB, and an apparatus and a method for detecting an organic trace component using the same. As an issue.
[0014]
[Means for Solving the Problems]
The first aspect of the present invention for solving the above problems, the introducing means the solution from the top of the container body including a measurement sample is introduced into fine particles, is disposed above the periphery of the container body, and the fine particles A sample concentrating device, comprising : a heating means for heating the sample to reduce the diameter of the fine particles; and a cooling means for cooling the periphery of the container body below the heating means and condensing moisture in the atmosphere. A sample concentrating device, comprising: a mist discharging means having a tip portion inserted into a lower central portion inside the main body and discharging the sample mist having a reduced diameter therein .
[0015]
A second invention is the sample concentrator according to the first invention, further comprising an introduction means for introducing a carrier gas for carrying the fine particles into the container body.
[0016]
A third invention is the sample concentrator according to the first invention, wherein the container main body is a cylindrical body or an inverted truncated cone.
[0017]
A fourth invention is characterized in that, in the first invention, a water reservoir is formed at a lower portion of the container main body, and one or more grooves are formed in a vertical axis direction on an inner wall of the container main body. Sample concentrator.
[0018]
A fifth invention is the sample concentrator according to the first invention, wherein a heating means for heating the mist discharging means is provided around.
[0019]
A sixth invention is the sample concentrator according to the fifth invention, wherein a heating temperature of the heating means is 150 to 300 ° C.
[0020]
A seventh invention is the sample concentrator according to the first invention, wherein the measurement sample is an organic halide or an environmental hormone.
[0021]
An eighth invention is the sample concentrator according to the first invention, wherein the measurement sample is an organic halide in PCB-treated wastewater.
[0022]
A ninth aspect of the present invention, a sample concentration device according to any one of the first to eighth, and the sample introduction means for continuously introducing into the vacuum chamber a mist that has been micronized discharged from the sample concentrator, irradiating a laser to the introduced sample, a laser irradiation unit for laser ionization, a converging portion for converging the molecule the laser ionization, and the ion trap for selecting concentrating the converged molecules, released at a constant period A time-of-flight mass spectrometer equipped with an ion detector for detecting ions is provided.
[0023]
According to a tenth aspect, in the ninth aspect of the present invention, the sample introduction means is a capillary column, and a tip of the capillary column faces an ion focusing portion. It is in.
[0024]
According to an eleventh aspect, in the ninth aspect, there is provided the organic trace component detecting device, wherein the pulse wavelength of the laser is 280 nm or less.
[0025]
According to a twelfth aspect, in the ninth aspect, there is provided an organic trace component detecting device, wherein the pulse time width of the laser is 500 picoseconds or less.
[0026]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described, but the present invention is not limited thereto.
[0027]
[First Embodiment]
FIG. 1 is a schematic diagram of a sample concentration device according to the present embodiment. As shown in FIG. 1, a sample concentrating device 10 according to the present embodiment includes an introduction unit 14 for introducing a solution containing a measurement sample 12 into fine particles from an upper part of a container body 11 and introducing the solution into a fine particle around the upper part of the container body 11. A heating means 15 is provided for heating the finely divided sample 12 to reduce the diameter of the fine particles, a cooling means 16 for cooling the lower periphery of the heating means 15, and a tip at a lower central portion of the container body 11. A mist discharge pipe 18 into which the part 17 is inserted and which discharges the mist 20 that has been atomized therein is provided.
The sample solution 12 sprayed into the container body 11 is sprayed, and at the same time, water evaporates from the particle surface side due to heat from the heating means 15, and the diameter is reduced. Therefore, since the evaporation rate of water is faster than that of PCB, the amount of water per particle of fine particles is reduced, and the concentration of PCB remaining in water is improved.
[0028]
In the present embodiment, an introduction means 22 for introducing a carrier gas 21 for carrying fine particles into the container body 11 is provided. This is because it is not preferable to introduce the carrier gas or to introduce the PCB with water vapor into the mass spectrometer described later. The carrier gas is not particularly limited, but may be air, helium, nitrogen, or the like that does not contain an object to be measured. Note that the carrier gas is discharged from the lower part of the container body by the discharge pipe 23.
[0029]
As a solvent of the solution containing the measurement sample 12, a PCB-soluble solvent such as n-hexane is preferable.
[0030]
The introduction means 14 for introducing the solution 13 into fine particles is not particularly limited as long as it is means for making the solution finer to the micron level, such as a nebulizer.
[0031]
The reason why the heating means 15 is provided around the upper side of the container body is to more positively evaporate the solution sprayed in a mist form in the container body. The heating temperature may be about 50 to 120 ° C. This heating zone reduces the diameter of the mist from a large diameter (50 μm) to a medium diameter to a small diameter (several μm).
[0032]
Cooling means 16 for introducing cooling water 16a to cool the periphery of the container body is provided below the heating means so as to cool the inside of the container body. The water evaporated by this cooling is positively condensed on the wall surface.
[0033]
A liquid reservoir 24 for the condensed water is provided below the container body, and is discharged as needed.
[0034]
In addition, one or two or more grooves (not shown) are formed in the inner peripheral surface of the container body in the vertical direction so that dripping of the condensed water is facilitated.
[0035]
The mist having a reduced diameter is discharged from a discharge pipe serving as mist discharging means, and introduced into a mass spectrometer described later.
[0036]
The mist discharge pipe 18 is provided with a heating means 25 such as a heater so that the mist does not adhere to the inner wall. The heating is performed at 100 to 300 ° C. to prevent the mist from adhering to the inner wall and to vaporize the mist for introducing the sample into the mass spectrometer.
[0037]
Examples of the object to be measured in the present invention include, but are not limited to, organic halides and environmental hormones such as PCBs and dioxins contained in the treated water.
[0038]
The concentration of PCB in the treated water is measured by forming a mist in the container body 10 and vaporizing the mist having a further reduced diameter in a mist discharge pipe, and performing normal gas analysis of the gas, for example, with a mass spectrometer. be able to.
[0039]
[Second embodiment]
FIG. 2 is a schematic diagram of the sample concentrator according to the present embodiment. As shown in FIG. 2, the sample concentrating apparatus 10 according to the present embodiment is provided with a washing unit, and is provided with two such apparatuses so as to alternately concentrate the sample.
The configuration of the device is the same as that of the device shown in FIG.
[0040]
The apparatus of the present embodiment is provided with a cleaning liquid supply pipe 31 for supplying a cleaning liquid to a sample introduction pipe 13 for introducing a sample solution 12, and after the concentration of the sample is completed, a cleaning liquid 32 is supplied to wash the inside. ing.
Two devices having the same configuration are provided, and the mist discharge pipe 18 is provided with a sample distributing means 34 having a plurality of valves 33 so that the mist is alternately discharged to the mass spectrometer and the one cleaning liquid 32 is alternately discharged to the outside. ing.
[0041]
[Third Embodiment]
FIG. 3 is a schematic diagram of the sample concentration device according to the present embodiment. As shown in FIG. 3, the sample concentrating apparatus 10 according to the present embodiment has a container body having an inverted truncated cone shape. Since the configuration is the same as that of the apparatus in FIG. 1, the heating means and the cooling means are omitted, and only the shape of the container body will be described.
[0042]
The container body 40 according to the present embodiment has a shape of an inverted truncated cone, and its diameter is reduced from the upper part to the lower part, and the tip of the mist discharge pipe faces the central part below the lower part. Not. Thereby, the mist is forcibly concentrated on the opening of the mist discharge pipe.
[0043]
[Fourth Embodiment]
FIG. 4 is a schematic diagram of an apparatus for detecting an organic trace component according to the present embodiment. As shown in FIG. 4, an organic trace component detection device 50 according to the present embodiment is a detection device that detects the concentration of an organic trace component in wastewater, and includes a sample concentration device 10 shown in FIG. A heating means 30 for vaporizing mist from the concentrator 10; and a capillary column serving as a sample introduction means for continuously leaking gas generated by the gas generator into a vacuum chamber 52 as a sample 51 and introducing it as a molecular beam 53. 54, a laser irradiation unit 54 for irradiating the leaked molecular beam 53 with a laser beam 55 to perform laser ionization, a converging unit 56 including a plurality of ion electrodes for converging the laser ionized molecules, An ion trap 57 for selectively concentrating and an ion detection for reflecting ions emitted at a fixed period by a reflectron 58 and detecting the reflected ions 59 are those formed by and a time-of-flight mass spectrometer 60 having a.
Then, from the comparison of the signal intensities detected by the detector 59, the PCB concentration of the measurement target can be obtained.
The measured PCB concentration may be sent to the monitoring command room, and may be disclosed to the outside by, for example, a monitor device (not shown).
[0044]
By providing the gas generating means, when measuring the PCB concentration in the wastewater from the PCB processing facility, introduction of a large amount of water vapor into the time-of-flight mass spectrometer 60 is eliminated, and the life of the apparatus is extended. Can be.
Further, the amount of noise spectrum due to water molecules is significantly reduced, and a spectrum of only the spectrum to be analyzed can be detected.
[0045]
It is preferable that the capillary column 54 for introducing the gas-replaced collected sample 51 has its tip facing the ion focusing section 56. Specifically, the capillary column among the electrodes constituting the ion focusing section 56 is most suitable. It is preferable that the electrode is flush with the electrode on the column side or protrudes toward the ion trap side from the electrode.
[0046]
The material of the capillary column is preferably quartz or stainless steel. In the case of stainless steel, control can be performed by applying an electric field by the ion focusing section 56.
[0047]
The capillary column has a hole diameter of 1 mm or less, preferably about 3 mm for a laser. In addition, the shorter the distance from the outlet of the capillary column to the laser irradiation position, the better. However, if the distance is too short, the tip will be damaged by the laser beam. Preferably, the efficiency is improved.
[0048]
The pulse wavelength of the laser beam 55 emitted from the laser irradiating means 56 is preferably 300 nm or less, preferably 280 nm or less, and more preferably about 266 ± 10 nm, as will be described later in Examples. This is because if it exceeds 300 nm, ionization of the organic trace component to be measured is not performed well.
[0049]
The pulse time width of the laser light 56 emitted from the laser irradiation means 56 is preferably 500 picoseconds (10 ⁻¹² ) seconds or less, more preferably 200 picoseconds or less. This is because a laser having a pulse time width of nanoseconds (10 ⁻⁹ ) has a low detection sensitivity, which is not preferable.
[0050]
The pulse repetition frequency of the laser light emitted from the laser irradiation means 56 is preferably 10 MHz or more, and more preferably 76 MHz.
This is because the ionization efficiency is continuously improved by increasing the pulse repetition frequency.
[0051]
As described above, by reducing the pulse time width of the laser light to 500 picoseconds (10 ⁻¹² ) or less, decomposition of the PCB by the laser light can be suppressed, and the detection sensitivity can be improved.
[0052]
FIGS. 5A and 5B show signals from the ion detector that detected PCB. Here, the horizontal axis is the flight time (second), and the vertical axis is the ion signal intensity (V). FIG. 5B is an enlarged view of FIG. 5A for the 4-chlorine PCB.
[0053]
Using the above measuring device, for example, the concentration of PCB in the wastewater discharged from the PCB decomposition treatment equipment can be measured quickly and accurately, and the treatment can be monitored based on the measurement result.
[0054]
In the embodiment described above, the PCB as an object to be measured is taken as an example of an organic trace component. However, the present invention is not limited to this. The present invention can also be applied to measurement of dioxins or environmental hormones in wastewater discharged from combustion facilities such as incinerators and boilers.
[0055]
[Fifth Embodiment]
FIG. 6 illustrates a monitoring system in gas in a PCB detoxification processing facility using the above-described measuring device.
As shown in FIG. 6, the PCB detoxification processing system is a harmful substance processing system for detoxifying a processing target on which PCB which is a harmful substance is adhered, contained, or stored. One or both of the separating means 1004 for separating the harmful substance 1002 from the container 1003 for storing the substance (for example, PCB) 1002 and the disassembling means 1005 for disassembling the components 1001a, b,. A pretreatment means 1006, a core separation means 1007 for separating a core 1001a, which is a constituent material of an object processed in the pretreatment means 1006, into a coil 1001b and an iron core 1001c, and the separated coil 1001b Coil separating means 1008 for separating wire 1001d and paper / tree 1001e; Cleaning means 1011 for cleaning the iron core 1001c separated by 1008, the metal container (container body and lid, etc.) 1003 separated by dismantling means 1005, and the copper wire 1001d separated by coil separating means 1008 with cleaning liquid 1010; , A harmful substance decomposition treatment means 1013 for decomposing one or both of the cleaning waste liquid 1012 after cleaning and the harmful substance 1002 separated by the pretreatment means, and the PCB concentration in the wastewater 133 discharged from the harmful substance treatment means 1013 And a measurement system 61 for measuring
[0056]
Here, as the harmful substance to be detoxified in the present invention, besides PCB, for example, vinyl chloride sheet, hazardous waste paint, waste fuel, toxic chemical, waste resin, untreated explosive, etc. can be mentioned. It is not limited to these as long as they are harmful substances caused by contamination.
[0057]
Examples of the object to be treated in the present invention include, but are not limited to, transformers and capacitors using PCB as an insulating oil, and storage containers storing paints that are harmful substances. Not something.
[0058]
Also, in the ballast for fluorescent lamps, PCB has been used conventionally, so it is necessary to perform detoxification treatment. In this case, since the capacity is small, it is necessary to directly feed into the separation means 1009 without pretreatment. Can be detoxified.
[0059]
When the harmful substance is a liquid or the like, the harmful substance is detoxified by directly charging the harmful substance decomposition processing means 1013, and the container in which the harmful substance is stored can be processed by the detoxification processing of the constituent materials. It is necessary to confirm that the liquid after the treatment is 3 ppb or less, which is the PCB discharge standard.
Since the configuration of the harmful substance processing means 1013 is the same as that shown in FIG. 6, the same components are denoted by the same reference numerals and description thereof will be omitted.
[0060]
The measurement system 61 of the present invention uses the organic trace component detection device 50 shown in FIG. 4 to decompose PCB in the harmful substance processing means 1013 and then decompose PCB in the gas-liquid separator 129 to separate the PCB concentration in the wastewater 133. Is to monitor.
By providing this measurement system, the PCB concentration can be monitored quickly and efficiently. As a result, the decomposition process can be performed while always monitoring whether the PCB process is being performed appropriately, and environmentally friendly measures can be taken.
[0061]
Therefore, by using this measuring device, it is possible to always analyze whether the wastewater satisfies a predetermined standard by analyzing the water every predetermined time, and when there is an emergency, when the PCB concentration exceeds the standard, For example, the drainage can be separately stored in a storage facility, and at the same time, only the work procedure and the like can be adjusted to prevent external environmental pollution.
[0062]
【The invention's effect】
As described above, according to the present invention, an introducing means for introducing a solution containing a measurement sample into fine particles from the upper portion of the container main body and heating the finely divided sample disposed around the upper portion of the container main body. Heating means for reducing the diameter of the fine particles, cooling means for cooling the lower periphery of the heating means to condense the water in the atmosphere, and mist which is inserted into the lower central portion of the container body and has become fine particles inside. And a mist discharge means for discharging mist, so that the mist can be efficiently concentrated from the solution state, and the analysis of trace substances in the solution becomes easy.
[0063]
Further, since the sample solution is an organic halide in the PCB treatment wastewater, it is possible to measure the PCB concentration in the wastewater discharged from the PCB treatment equipment.
[0064]
Further, the sample concentrating apparatus, a sample introducing means for continuously introducing the gas generated by the gas generating means into the vacuum chamber, a laser irradiating means for irradiating the introduced sample with a laser and ionizing the laser, A converging section for converging the ionized molecules, an ion trap for selectively concentrating the converged molecules, and a time-of-flight mass spectrometer equipped with an ion detector for detecting ions emitted at a constant period Therefore, it is possible to use the sample as a sample accompanying the bubbling gas, and there is no introduction of water vapor into the time-of-flight mass spectrometer, so that the life of the device can be extended.
[Brief description of the drawings]
FIG. 1 is a schematic diagram of a sample concentrator according to a first embodiment.
FIG. 2 is a schematic diagram of a sample concentrator according to a second embodiment.
FIG. 3 is a schematic diagram of a sample concentrator according to a third embodiment.
FIG. 4 is a schematic view of an apparatus for detecting an organic trace component according to a fourth embodiment.
FIG. 5 is a measurement result diagram of low chlorine PCB.
FIG. 6 is a schematic diagram of a PCB detoxification processing system according to a fifth embodiment.
FIG. 7 is a schematic diagram of a hydrothermal decomposition apparatus.
FIG. 8 is a schematic diagram of a laser measurement device according to the related art.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Sample concentrating apparatus 11 Container main body 12 Measurement sample 13 Sample introduction pipe 14 Introduction means 15 Heating means 16 Cooling means 17 Tip part 18 Mist discharge pipe 20 Fine mist 50 Organic halide detection device 51 Sampling sample 52 Vacuum chamber 53 Leakage Dashi molecular beam 54 Capillary column 55 Laser beam 56 Converging section 57 Ion trap 58 Reflectron 59 Ion detector 60 Time-of-flight mass spectrometer

Claims (12)

Introducing means for introducing the solution containing the measurement sample into fine particles from the upper part in the container body, and introducing the solution.
Disposed above the periphery of the container body, and a heating means for heating the fine particles sample, reducing the diameter of the particles diameter,
A sample concentrator comprising: a cooling unit that cools the periphery of the container body on the lower side of the heating unit and condenses moisture in the atmosphere.
A sample concentrating device, comprising: a mist discharging means for inserting a distal end portion into a lower central portion inside the container main body and discharging the reduced-diameter sample mist therein. Oite a sample concentrator according to claim 1,
A sample concentrating device comprising an introduction means for introducing a carrier gas for carrying fine particles into the container body. Oite a sample concentrator according to claim 1,
A sample concentrating device, wherein the container body is a cylindrical body or an inverted truncated cone. Oite a sample concentrator according to claim 1,
Together by forming a water reservoir at the bottom of the container body, sample concentration apparatus characterized by comprising a groove in the vertical direction on the inner wall of the container body to form one or two or more. Oite a sample concentrator according to claim 1,
A sample concentrating device, wherein a heating means for heating the mist discharging means is provided around the periphery. Oite a sample concentrator according to claim 5,
A sample concentrating device, wherein a heating temperature of the heating means is 150 to 300 ° C. Oite a sample concentrator according to claim 1,
A sample concentrator, wherein the measurement sample is an organic halide or an environmental hormone. Oite a sample concentrator according to claim 1,
A sample concentrator, wherein the measurement sample is an organic halide in PCB-treated wastewater. A sample concentrating device according to any one of claims 1 to 8,
A sample introduction means for continuously introducing into the vacuum chamber the mist atomized discharged from the sample concentrator,
The laser is irradiated to the introduced sample, a laser irradiation unit for laser ionization,
A converging portion for converging the molecule the laser ionization,
An ion trap for selecting concentrating the converged molecules,
An apparatus for detecting an organic trace component, comprising: a time-of-flight mass spectrometer provided with an ion detector for detecting ions emitted at a constant cycle. An apparatus for detecting an organic trace component according to claim 9,
An apparatus for detecting an organic trace component, wherein the sample introduction means is a capillary column, and the tip of the sample introduction means faces an ion focusing part. An apparatus for detecting an organic trace component according to claim 9,
An apparatus for detecting an organic trace component, wherein a pulse wavelength of the laser is 280 nm or less. An apparatus for detecting an organic trace component according to claim 9,
An apparatus for detecting an organic trace component, wherein a pulse time width of the laser is 500 picoseconds or less.

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