KR102185321B1 - Automatic chemical preparation system for radiocarbon dating sample by ABA method - Google Patents

Abstract

The present invention relates to a fully automatic chemical pretreatment device using an ABA method for radiocarbon dating samples, which can easily and quickly perform a chemical treatment by automating the chemical treatment during the pretreatment of samples collected to perform a radiocarbon dating method using an AMS device. The fully automatic chemical pretreatment device can maximize the reliability and efficiency of a pretreatment while simplifying the structure and operation of the device.

Description

Automatic chemical preparation system for radiocarbon dating sample by ABA method for radiocarbon dating samples

The present invention relates to a technology for measuring radiocarbon dating of a sample, and relates to a fully automatic chemical pretreatment device capable of pretreating a sample to be measured by automating it by an acid-base-acid (ABA) pretreatment method. will be.

Radiocarbon dating is a representative dating method, and is used in various fields such as the time of occurrence of archaeological artifacts, the age of the strata, the rate of sedimentation, the rate of sedimentation in the ocean, and the source of pollution.

Radiocarbon dating is to measure to measure the generation date of the material ratio of the material and its ¹² C isotope of ¹⁴ C. Seven isotopes of carbon are known, but the stable ones are ¹² C and ¹³ C, and have relative abundance ratios of 98.893 and 1.107, respectively. ¹⁴ C is converted by reacting (np) by neutrons, the secondary product of spacecraft, of ¹⁴ N in the atmosphere in the atmosphere over 9 km above the ground. In the 1960s, Libby devised a method to measure the age of a substance by using the fact that the natural decay of the atomic nucleus, which is the process of converting unstable radioactive substances into stable and normal substances, occurs at a constant rate (half-life) over time. The dating method was established.

Radiocarbon dating methods include liquid scintillation counting, gas proportionality counting, and Accelerated Mass Spectrometry (AMS), which directly counts the number of ¹⁴ C in the sample to be measured. Among them, AMS is used most today because it not only enables accurate measurement in a shorter time with a very small amount of sample, but also has the advantage of wide application range.

However, in order to use the AMS method, pretreatment of the sample to be measured is required. The pretreatment process consists of physical treatment, chemical treatment, sample combustion, reduction treatment, and carbon sample production on the collected sample.

Physical treatment is usually the removal of impurities without the use of chemicals or breaking down to the appropriate size.

Chemical treatment is required to completely remove impurities. For the organic sample, the chemical treatment is by the acid-alkali-acid (Acid-Base-Acid: ABA) pretreatment method. In the ABA pretreatment method, three kinds of solutions, including an acid solution, a salt solution, and distilled water for intermediate washing, are supplied to the reaction vessel in a quantitative manner. The temperature of the supplied solution must be controlled and agitation is required during the process.

Sample combustion is the first extraction of carbon dioxide from a sample that has been chemically treated, and reduction treatment is a process of reducing the extracted carbon dioxide to make pure carbon.

For this, the pretreatment of the sample to be measured has been performed manually by experts in the past, so even experts are limited in the amount and number of samples that can be processed, so the utilization rate of AMS equipment was relatively low.

Accordingly, attempts have been made to automate the pretreatment of the sample to be measured, and Patent Publication No. 10-1622317 develops and introduces a device capable of separating and collecting carbon dioxide from a carbonate sample. Registered Patent Publication No. 15- 1594852 introduces a fully automatic reduction device.

However, no equipment with high utility for chemical treatment has been developed yet, so experts are handling it manually. It was a limitation that one expert could process up to 15 samples per day, and above all, as it was performed manually, there was a problem that the precision was degraded due to deviations for each sample.

The present invention is to solve the above-described problem, and a radiocarbon dating sample that can be easily and quickly performed by automating chemical treatment during the pretreatment of a sample collected to perform a radiocarbon dating method using an AMS device It is to provide a fully automatic chemical pretreatment device according to the ABA method for

In particular, an object of the present invention is to provide a fully automatic chemical pretreatment apparatus according to the ABA method for a radiocarbon dating sample having a structure in which the chemical treatment is automated, but the injection and discharge of an acid solution, a base solution and distilled water can be easily made. To do.

Meanwhile, other objects not specified of the present invention will be additionally considered within a range that can be easily deduced from the following detailed description and effects thereof.

In order to achieve the above object, the fully automatic chemical pretreatment device according to the ABA method for a radiocarbon dating sample according to an embodiment of the present invention accommodates a sample inside, but an acid solution, a base solution, or distilled water freely enters the interior and exterior. Liftable filter bag; A reactor capable of accommodating an acid solution, a base solution, or distilled water for pretreating the filter bag and the sample; A carrier including a holder into which the reactor is inserted; An injector positioned above the carrier to inject an acid solution, a base solution, or distilled water into the reactor through an injection tube; And a tilting unit for discharging an acid solution, a base solution, or distilled water accommodated in the reactor inserted in the holder by tilting the carrier to one side, and including, an acid solution, a base solution, and a solution accommodated in the reactor by the tilting unit. Alternatively, even if distilled water is discharged, the sample does not escape from the reactor by the filter bag.

In a preferred embodiment, it further comprises a vertical movement unit for moving the carrier up and down, and when any one of an acid solution, a base solution, and distilled water is injected into the reactor by the injection pipe, the upward movement unit is the carrier. It may be characterized in that one end of the injection pipe is inserted into the reactor by moving upward. At this time, the injector is fitted with a protection member at a position corresponding to the inlet of the reactor, and after any one of an acid solution, a base solution, and distilled water is injected into the reactor, the upright unit moves the carrier upward and the It is characterized in that the reactor is sealed so that the inlet of the reactor is closed by the protection member so that steam does not leak during the reaction.

In a preferred embodiment, the filter bag includes: a first filter surface and a second filter surface that pass freely through an acid solution, a base solution, or distilled water, and are attached to each other so that an inlet is formed by opening only one side to have a sample receiving space therein; And a cover portion extending from the first filter surface and formed to cover the second filter surface through an inlet, wherein the cover portion has other edges attached to the second filter surface except for one edge. It can be characterized.

In a preferred embodiment, the inlet of the reactor has a shape that gradually narrows, but the width and height of the filter bag may be greater than the width or diameter of the inlet of the reactor.

In a preferred embodiment, the inside of the holder may be characterized in that it further comprises a heating unit arranged to surround the inserted reactor for heating.

In a preferred embodiment, a guide unit capable of guiding an acid solution, a base solution, or distilled water discharged from the reactor is installed at the inlet of the reactor, and the guide unit is fitted at one end to which the inlet of the reactor is inserted. It may be characterized in that a hole is formed, and a semicircular member is installed at a lower portion of the other end so that the guide unit has a semicircular shape. At this time, a retreat tank for accommodating an acid solution, a base solution, or distilled water discharged from the reactor is installed below one side of the carrier, and the guide unit is an elastic material so that the carrier is inclined to one side by the tilting unit. In the case, it may be characterized in that the other end is hooked and bent in the retreat tank.

In a preferred embodiment, it is characterized in that it further comprises a stirring unit for shaking the carrier left and right to stir the acid solution, the base solution, or distilled water contained in the reactor.

By means of the problem solving means of the present invention as described above, the present invention is a radiocarbon dating method that can be easily and quickly performed by automating the chemical treatment during the pretreatment of the sample collected to perform the radiocarbon dating method using the AMS device. It relates to a fully automatic chemical pretreatment device using the ABA method for a sample, and can maximize the reliability and efficiency of pretreatment while simplifying the structure and operation of the device using a filter bag.

On the other hand, even if it is an effect not explicitly mentioned herein, it is added that the effect described in the following specification and its provisional effect expected by the technical features of the present invention are treated as described in the specification of the present invention.

1 is a schematic perspective view of a fully automatic chemical pretreatment apparatus according to the ABA method for a radiocarbon dating sample according to an embodiment of the present invention.
2 is a schematic plan view of a fully automatic chemical pretreatment apparatus according to the ABA method for a radiocarbon dating sample according to an embodiment of the present invention.
3 is a reference diagram for explaining installation of a reactor and a guide unit in a carrier holder of a fully automatic chemical pretreatment apparatus according to the ABA method for a radiocarbon dating sample according to an embodiment of the present invention.
4 is a schematic exploded perspective view of a filter bag used in the present invention.
5 is an enlarged view of part A of FIG. 1.
6 is a schematic reference diagram for explaining an operation in which a carrier of the fully automatic chemical pretreatment apparatus according to the ABA method for a radiocarbon dating sample according to an embodiment of the present invention is inclined to one side.
※ The attached drawings are exemplified by reference for understanding the technical idea of the present invention, and the scope of the present invention is not limited thereto.

In the description of the present invention, when it is determined that the subject matter of the present invention may be unnecessarily obscured as matters apparent to those skilled in the art with respect to known functions related to the present invention, a detailed description will be omitted.

As described above, the radiocarbon dating method by Accelerated Mass Spectrometry (AMS) requires pretreatment of a sample to be measured. Chemical treatment of organic samples is generally carried out by an acid-base-acid (ABA) treatment method. At this time, the target organic sample is a square and has a thin film shape having a size of 1 cm Х 1 cm or less. The ABA treatment method replaces the acid solution and the base solution while controlling the temperature, but washing with distilled water is repeated several times in between. However, there is a problem that it is not easy to change the solution due to the small and thin form of the organic sample. In order to solve this problem, the conventional sample pretreatment device for radiocarbon dating has inevitably had a complex structure. For this reason, the conventional radiocarbon dating sample pretreatment device for chemical treatment required a high manufacturing cost, and above all, it was frequently failed, so it was hardly used for radiocarbon dating sample preparation.

Accordingly, the present inventor is a fully automatic chemical pretreatment device according to the ABA method for the radiocarbon dating sample of the present invention that can solve the problem of the small and thin form of the radiocarbon dating sample (hereinafter referred to as "pretreatment device") Came to develop.

1 is a schematic perspective view of a fully automatic chemical pretreatment apparatus 100 according to an ABA method for a radiocarbon dating sample according to an embodiment of the present invention.

With reference to FIG. 1, a description will be given of a pretreatment apparatus 100 according to an embodiment of the present invention.

The pretreatment apparatus 100 of the present invention is composed of a plurality of frames. The first frame 1 constitutes a skeleton from the outermost side, and is supported by a pedestal 4 on the ground. Unlike other frames, the first frame 1 is fixed to the ground. The first frame 1 is provided with a second frame 2 and a control unit 90, and if necessary, at least one tank 9 is further installed to accommodate a solution required for chemical treatment of the sample.

The second frame 2 is installed on the first frame 1 and is connected by a stirring unit 63. The stirring unit 63 serves to stir the acid solution, the base solution, or distilled water contained in the reactor 10 by shaking the carrier 20 in the left and right direction (V). To this end, the stirring shaft fixing part 5 is installed on the inner floor of the first frame 1. The stirring shaft fixing part 5 is fitted so that the stirring shaft 63a is movable left and right. To this end, a bearing may be installed inside the stirring shaft fixing part 5. A connection member 63b is installed on the stirring shaft 63a. The connecting member 63b is installed on the outer bottom of the second frame 2 and is dependent on the movement of the stirring shaft 63a. One end of the stirring shaft 63a is connected to one end of the connection shaft 63d. The other end of the connecting shaft 63d is eccentrically connected to the stirring rotation shaft 63c. Accordingly, when the stirring rotation shaft 63c is rotated (r) by the motor, the connecting shaft 63d moves the stirring shaft 63a in the left-right direction (V). The second frame 2 is shaken left and right by the movement of the stirring shaft 63a, and the shaking is transmitted to the reactor 10 to stir the acid solution, the base solution, or distilled water contained in the reactor 10. The stirring unit 63 shakes the second frame 2 as a whole, thereby enabling stirring while the protective member 35 closes the inlet of the reactor 10 as described later.

Meanwhile, a plurality of second frames 2 may be installed. When a plurality of second frames 2 are installed, the number of components installed inside the stirring unit 63 and the second frame 2 is increased accordingly.

The second frame 2 may be divided into an inner upper portion and an inner lower portion, and an intermediate plate may be installed between the upper and lower portions. The height of the upper and lower portions does not have to be the same, and may be installed so that the height of the upper portion is higher than that of the lower portion.

A retreat tank 40 is installed on the inner upper part of the second frame 2. The drainage tank 40 is installed on the drainage tank guide fixed to the intermediate plate of the second frame 2. Since the acid solution, the base solution, or distilled water used for chemical treatment of the sample is discharged into the retreat tank 40, it is formed of a material having excellent chemical resistance. A discharge pipe 41 may be connected to a lower side of the discharge tank 40. In order to smoothly discharge the discharged solution, it is preferable that the discharge pipe 41 is connected to the lowest part of the bottom surface of the discharge tank 40. The discharge tank 40 has a structure capable of separating and collecting the discharged waste acid and waste base solution.

Meanwhile, a third frame 3 and a third frame 3 with a carrier 20 installed thereon are installed on the second frame 2. The position of the third frame 3 is determined so that the retreat tank 40 is located on one side of the carrier 20. At this time, it is preferable that the carrier 20 is located on the inner side and the retreat tank 40 is located on the outside.

3 is a schematic perspective view of the carrier 20. Referring to FIG. 3, at least one holder 21 is formed on the carrier 20. The reactor 10 is inserted into the holder 21. At this time, the holder 21 may physically fix the reactor 10 in a force-fitting manner so that the reactor 10 does not come off easily. Alternatively, the holder 21 may be fixed by pressing the side of the inserted reactor 10 using a spring so that the reactor 10 does not easily come off. At this time, the holder 21 serves to fix the reactor 10 so that it does not fall out of the holder 21 even if the carrier 20 is inclined by 90 degrees or more.

On the other hand, the inside of the holder 21 is provided with a heating unit 22 (refer to FIG. 6) disposed to surround and heat the inserted reactor 10. Glass fiber may be used as the heating unit 22, but the present invention is not limited thereto. The heating unit 22 aims to control the temperature of an acid solution or a base solution according to the ABA treatment method.

The reactor 10 may be made of a glass material having excellent chemical resistance, and may have a shape in which the inlet is narrowed. The inlet of the reactor 10 is open. That is, a separate cover for sealing the inlet of the reactor 10 is not required. The reactor 10 has a space for accommodating an acid solution, a base solution, or distilled water for pretreating a sample, and a filter bag 15 accommodating a sample therein together with an acid solution, a base solution or distilled water in this space. ) Is located.

A guide unit 70 is installed at the inlet of the reactor 10 to provide a discharge path when discharging an acid solution, a base solution or distilled water. At one end of the guide unit 70, a fitting hole into which the inlet of the reactor is inserted is formed, and at the other end, a semicircular member 71 is installed so that the guide unit 70 has a semicircular shape. The semi-circular member 71 serves to prevent the guide unit 70 from falling to the outside by being caught on the edge of the water storage tank 40. On the other hand, after the inlet of the reactor 10 is inserted into the fitting hole, the guide unit 70 may be fixed by further inserting a fixing ring 72. The guide unit 70 may be formed of a material that is not degraded as much as possible by acid and base solutions.

The sample S is accommodated in the filter bag 15. With the filter bag 15, an acid solution, a base solution, or distilled water can freely flow in and out of the interior. That is, the filter bag 15 fixes the sample S, but does not interfere with the contact of the acid solution, the base solution, or distilled water to the sample S.

The structure of the filter bag 15 is shown in FIG. 4. Referring to FIG. 4, the filter bag 15 has a first filter surface 15a, a second filter surface 15b, and a cover portion 15c. The first filter surface 15a, the second filter surface 15b, and the cover part 15c freely pass through an acid solution, a base solution, or distilled water, but they function even if they are immersed in an acid or base solution and heated to the reaction temperature during the reaction time. There is no damage, the elution phenomenon of constituent materials is minimized, and the minimum eluted material can be formed of a material that does not affect the results of the dating. For example, the filter bag 15 may be in the form of a mesh made of polypropylene (PP). The first filter surface 15a and the second filter surface 15b are attached to each other so that only one side thereof is opened to form an inlet, so that a sample receiving space 15d is formed therein. For example, as shown in FIG. 4, only portions of the first filter surface 15a and the second filter surface 15b marked with a thick line are attached to each other. The cover portion 15c is formed to extend from the first filter surface 15a (dashed-dotted line in FIG. 4) and pass through the inlet to cover the second filter surface 15b. In particular, the cover portion (15c) is attached to the second filter surface (15b) and the other edge except one edge (the thick line portion of the cover portion in Fig. 4), whereby the sample accommodated in the sample receiving space (15d) is chemically treated. It is possible to fundamentally block the exit from the sample receiving space (15d) during.

Using the filter bag 15 has several advantages. The sample S used for chemical treatment is small in size and thin. Therefore, it was not easy to prevent the sample (S) from being released in the process of discharging an acid solution, a base solution, or distilled water from the reactor. When a manure filter is installed at the inlet of the reactor, there is a problem that the samples (S) clump together and the filter is often blocked, and the sample is damaged in the process of separating the clumped samples (S). In particular, in the automated pretreatment device, in order to solve the problem due to the small size of the sample (S), the discharging unit of the acid solution, the base solution or distilled water had to have a very complex structure, which increases the manufacturing cost of the pretreatment device. Most of all, it caused frequent failure of the pretreatment device. The pretreatment apparatus 100 of the present invention uses the filter bag 15 to very simply tilt the carrier 20 to one side by the tilting unit to transfer the acid solution, the base solution, or distilled water injected into the reactor 10 into a water storage tank. While discharged to (40), the problem that the sample (S) is separated from the reactor (10) is solved by the filter bag (15).

In addition, the inlet of the reactor 10 may have a shape gradually narrowing, in which case the width and height of the filter bag 15 may be larger than the width or diameter of the inlet of the reactor 10. As described above, in the pretreatment apparatus 100 of the present invention, the carrier 20 is tilted to one side by the tilting unit to discharge the acid solution, the base solution, or distilled water injected into the reactor 10 to the dewatering tank 40. , By making the width and height of the filter bag 15 larger than the width or diameter of the inlet of the reactor 10, it is possible to further prevent the filter bag 15 from being separated from the reactor 10.

An acid solution, a base solution, or distilled water is injected into the reactor 10 through the injector 30. The acid solution, the base solution, and distilled water to be injected are respectively in the first flow rate control unit 51, the second flow rate control unit 52, and the third flow rate control unit 53 disposed on the outer upper side of the first frame (1). The amount injected by this can be precisely controlled. The acid solution, the base solution, and distilled water to be injected are from the first flow control unit 51, the second flow control unit 52, and the third flow control unit 53, respectively, from the first pipe 31 and the second pipe ( 32), it is injected into the intermediate tank 34 through the third pipe 33. The acid solution, base solution, and distilled water injected into the intermediate tank 34 are injected into the reactor 10 through an injection tube.

The carrier 20 of the pretreatment apparatus 100 of the present invention does not operate statically, but rotates to stir or retire. Therefore, during operation, the reactor 10 and the injector 30 must be separated by a predetermined distance. To this end, an up-down movement unit 62 for moving the carrier 20 up and down (M) is installed on the inner lower portion of the second frame 2, that is, on the lower surface of the intermediate plate. The vertical movement unit 62 serves to move the third frame 3 upward and downward by extending or shortening the vertical coaxial 62a according to the operation of the vertical movement motor. Accordingly, the carrier 20 It moves to the bottom.

When the pretreatment apparatus 100 of the present invention stirs or discharges a solution, the carrier 20 must be located at the bottom. The vertical movement unit 62 shortens the shaft 62a, lowering the third frame 3', thereby lowering the heights of the carrier 20' and the reactor 10'.

When the vertical movement unit 62 moves the carrier 20 upward, one end of the injection pipe 36 is inserted into the reactor 10 (see Fig. 5). On the other hand, the injector 30 is fitted with a protective member 35 formed of a material that does not deteriorate its function by acid and base at a position corresponding to the inlet of the reactor 10. For example, the protection member 35 may be formed of a rubber material. When an acid solution, a base solution, or distilled water is injected, the height of the carrier 20 is such that one end of the injection pipe 36 is inserted into the reactor 10, but the protective member 35 and the reactor 10 are separated by a predetermined distance. It is preferable that it is a height. When the protective member 35 and the reactor 10 come into contact. This is because the inside of the reactor 10 is sealed and may become an element that prevents the injection of an acid solution, a base solution, or distilled water into the injector 30.

In this way, after injecting an acid solution, a base solution, or distilled water according to the ABA pretreatment method using the injector 30, the heating unit 22 heats the reactor 10 as necessary, and the stirring unit 63 heats the reactor ( 10) The acid solution, the base solution, or the sample (S) supported in distilled water is stirred. When the stirring unit 63 is operated, a reaction occurs in the reactor 10 to generate steam, and there is a fear that the surroundings may be contaminated due to an acid or base solution. Accordingly, the vertical movement unit 10 raises the carrier 20 so that the inlet of the reactor 10 is sealed by the protective member 35, thereby sealing the reactor 10 so that steam does not leak during the reaction. That is, the protective member 35 serves as a cover for the reactor 10.

When one step of the ABA pretreatment method is completed, the acid solution, base solution, or distilled water used in that step must be discharged. For example, after the acid solution is injected into the reactor 10, the acid solution is discharged and distilled water is injected to wash the sample.

In the pretreatment apparatus 100 of the present invention, by rotating the rotating shaft 61a by the tilting unit 61, the carrier 20 is tilted to one side and the acid solution and base are accommodated in the reactor 10 inserted into the holder 21. Drain the solution or distilled water.

Referring to FIG. 6, when the solution or the like F'is not discharged, the carrier 20' is positioned so that the reactor 10' faces upward.

Then, when discharging the solution, etc. (F), the tilting unit 61 rotates the carrier 20, and due to the shape of the reactor 10, the solution, etc. (F) is discharged by rotating it by 90 degrees or more. As the carrier 20 rotates, one end of the guide unit 70 installed in the carrier 20 comes into contact with the drainage tank 40, and the semicircular member 71 is caught on the wall of the drainage tank 40. At this time, the guide unit 70 is made of an elastic material and may be bent so that the guide unit 70 can be hung in the drainage tank 40 even if the carrier 20 sufficiently rotates. An important point in the present invention is that even if the carrier 20 is rotated to one side by 90 degrees or more, the sample S is not separated from the reactor 10 by the filter bag 15. That is, the pretreatment apparatus 100 of the present invention can fundamentally prevent the sample S from being discharged or damaged when discharging a solution, etc., which has been a problem in the related art.

The pretreatment apparatus of the present invention described above relates to a sample pretreatment apparatus for radiocarbon dating that can be easily and quickly performed by automating a chemical treatment during the pretreatment of a sample collected to perform a radiocarbon dating method, By using a filter bag, it is possible to maximize the reliability and efficiency of preprocessing while simplifying the structure and operation of the device.

In fact, one expert can chemically process up to 15 samples per day. When the pretreatment device of the present invention (with 12 holders) is used, the chemical pretreatment for 12 samples can be carried out in 150 minutes. In particular, when a person directly chemically processes a sample, variations may occur for each individual sample. The pretreatment apparatus of the present invention has the advantage of minimizing variation for each sample by automating the chemical processing process.

The scope of protection of the invention is not limited to the description and expression of the embodiments explicitly described above. In addition, it is added once again that the scope of protection of the present invention may not be limited due to obvious changes or substitutions in the technical field to which the present invention pertains.

Claims (9)

A filter bag that accommodates a sample inside, but allows an acid solution, a base solution, or distilled water to freely enter and exit the interior and exterior;
A reactor capable of accommodating an acid solution, a base solution, or distilled water for pretreating the filter bag and the sample;
A carrier including a holder into which the reactor is inserted;
An injector positioned above the carrier to inject an acid solution, a base solution, or distilled water into the reactor through an injection tube; And
Including; inclining the carrier to one side to discharge the acid solution, base solution, or distilled water accommodated in the reactor inserted into the holder;
The fully automatic chemical pretreatment apparatus according to the ABA method for a radiocarbon dating sample that does not leave the reactor by the filter bag even if the acid solution, the base solution, or distilled water accommodated in the reactor by the tilting unit is discharged.
The method of claim 1,
Further comprising a vertical movement unit for moving the carrier up and down,
When any one of an acid solution, a base solution, and distilled water is injected into the reactor by the injection tube, the vertical movement unit moves the carrier upward so that one end of the injection tube is inserted into the reactor. Fully automatic chemical pretreatment device by ABA method for carbon dating samples.
The method of claim 2,
The injector is fitted with a protective member at a position corresponding to the inlet of the reactor,
After any one of an acid solution, a base solution, and distilled water is injected into the reactor, the vertical movement unit moves the carrier upward so that the inlet of the reactor is sealed by the protective member so that steam does not leak during the reaction. A fully automatic chemical pretreatment apparatus according to the ABA method for a radiocarbon dating sample, characterized in that sealing the reactor.
The method of claim 1,
The filter bag,
A first filter surface and a second filter surface that pass freely through an acid solution, a base solution, or distilled water, and are attached to each other so that an inlet is formed by opening only one side to have a sample receiving space therein; And
Includes; a cover part extending from the first filter surface and formed to cover the second filter surface through the inlet,
The fully automatic chemical pretreatment apparatus according to the ABA method for the radiocarbon dating sample, characterized in that the cover portion is attached to the second filter surface and the other edge except one edge.
The method of claim 1,
The inlet of the reactor has a shape that gradually narrows, and the width and height of the filter bag are larger than the width or diameter of the inlet of the reactor.A fully automatic chemical pretreatment apparatus according to the ABA method for radiocarbon dating samples.
The method of claim 1,
A fully automatic chemical pretreatment apparatus according to the ABA method for a radiocarbon dating sample, characterized in that it further comprises a heating unit disposed to surround the inserted reactor and heated inside the holder.
The method of claim 1,
A guide unit capable of guiding an acid solution, a base solution, or distilled water discharged from the reactor is installed at the inlet of the reactor,
The guide unit for a radiocarbon dating sample, characterized in that a fitting hole in which the inlet of the reactor is inserted is formed at one end, and a semicircular member is installed at the lower end of the other end so that the guide unit has a semicircular shape. Fully automatic chemical pretreatment device by ABA method.
The method of claim 7,
A retreat tank for accommodating an acid solution, a base solution, or distilled water discharged from the reactor is installed below one side of the carrier,
The guide unit is a fully automatic chemical pretreatment device according to the ABA method for a radiocarbon dating sample, characterized in that the guide unit is an elastic material, and the other end is hooked to the drain tank when the carrier is inclined to one side by the tilting unit.
The method of claim 1,
A fully automatic chemical pretreatment device according to the ABA method for a radiocarbon dating sample, characterized in that it further comprises a stirring unit for shaking the carrier left and right to stir the acid solution, the base solution, or distilled water accommodated in the reactor.

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