KR101795494B1 - Apparatus for detecting soil pollution - Google Patents

Abstract

Disclosed is an automated analysis apparatus for soil pollution. The automated analysis apparatus for soil pollution comprises: an absorption container provided on an upper end; a reflux cooling pipe coupled to the lower side of the absorption container and integrally formed; a reaction container coupled to the lower side of the reflux cooling pipe by an adapter; the adapter coupling the reflux cooling pipe and the reaction container in a rotary type; and an automated device automating analysis. The automated device comprises: a main body frame; a moving frame which is coupled to the main body frame to be movable upward and downward and in which the reflux cooling pipe is fixed; a lower plate moving to the inside on a lower end of the main body frame; and a separation member rotationally coupled to an upper end of the lower plate, rotating the reaction container and separating the same from the reflux cooling pipe.

Description

{APPARATUS FOR DETECTING SOIL POLLUTION}

The present invention relates to an analysis apparatus, and more particularly, to a technique that can complement the reliability of analysts' safety and analytical results in a preprocessing process of an existing analyzing apparatus, provides programming technology capable of automatic control, And to improve the convenience of the analyst.

Before describing the apparatus for analyzing soil pollution according to the present invention, a method for analyzing soil contamination by the soil pollution process test method shown in KS I ISO 11466: 2008 for the soil analysis method will be described with reference to FIG. 11 do.

The above-described method for analyzing soil contamination is performed through the following steps.

(a) preparation step 1: sampling of soil and crushing if necessary,

(b) Preparation step 2: Preparation of an analytical optics 10 composed of the following reaction reagent and a reaction vessel, a reflux condenser tube and an absorption vessel,

- Water (purified water): Third distilled water

- concentrated nitric acid: HNO3

- concentrated hydrochloric acid: HCl

- 0.5 M nitric acid: 32 mL nitric acid + 1 L purified water

- Base solution: 210 mL of concentrated hydrochloric acid + 70 mL of concentrated nitric acid + 1 L filled with purified water

- Standard solution: Copper, lead, nickel, arsenic, mercury, zinc, cadmium (commercially available as standard material (CRM)

(c) Mixing Step: Mix 3 g of the soil sample, 0.5-1 mL of purified water, 21 mL of hydrochloric acid and 7 mL of nitric acid into the reaction vessel, and mix the mixture. If necessary, drop nitric acid dropwise step,

(d) Reaction step: 15 ml of 0.5 M nitric acid was added to the above absorption vessel, and the absorption vessel, the reflux condenser tube and the reaction vessel having the analytical flow rate (10) were combined and heated under the reaction vessel for 2 hours, Decomposing the sample,

(e) The heated analytical flow 10 is left to cool, and 10 ml of 0.5 M nitric acid is put into the absorption vessel, and the reflux condenser tube is moved by its own weight to the reflux condenser tube and the reaction vessel. Into a vessel,

(f) precipitation in the reaction vessel, filtration (Whatman No. 40), washing with a minimum amount of 0.5 M nitric acid,

(g) Instrumental analysis of collected samples using AA or ICP.

In the above-mentioned step, conventionally, the analysts are analyzing all the pre-processing steps manually. Especially, in the analysis of soil samples, nitric acid and hydrochloric acid are used as reagents and they are exposed to toxic gas generated by chemical reaction, which adversely affects the health of analysts.

Also, in the conventional analysis equipment, after the pretreatment process, the analyst must manually remove the reaction vessel and transfer it to the analyzer. Therefore, there is a high risk of the separation of the reaction vessel in which the strong acid is collected, There was a problem that it took a lot of time.

Korean Patent No. 10-1300445 (2013.08.20)

Accordingly, it is an object of the present invention to solve the above-mentioned problems, and it is an object of the present invention to provide a reaction reagent and a washing liquid injecting device capable of performing an automated process using an analytical fluid flow integrated with an absorption vessel, a reflux condenser and a reaction vessel, A check valve for controlling the injection amount of the reaction reagent and the washing liquid, and a moving frame for moving the device vertically and horizontally. And to provide an apparatus for analyzing soil pollution automation which improves the safety of the analyst and the efficiency of the analysis process.

In order to accomplish the above object, the present invention provides a method of manufacturing a heat exchanger, including: an absorption vessel provided at an upper end; a reflux cooling tube formed integrally with the absorption vessel below the reflux condenser tube; An adapter for rotationally coupling the reflux condenser tube and the reaction vessel and an automation equipment for automating the analysis, the automation equipment comprising: a main body frame; And a separating member rotatably coupled to an upper end of the lower plate and a lower plate moving forward and backward at a lower end of the body frame, the separating member rotating the reaction container to separate the reaction container from the reflux cooling pipe, Thereby providing an analysis apparatus.

According to the above-described soil contamination automation analyzing apparatus of the present invention, a plurality of analytical flow bundles composed of an absorption vessel, a reflux condenser tube, and a reaction vessel are coupled so as to be movable up and down, And the lower part is provided with a lower plate having a heating function so that the process which has to be performed by hand at each stage of the configuration of the conventional apparatus and the method using the configuration, It has an effect that automation is possible by the device.

In other words, it is possible to improve the safety of the analyst who deals with the strong acid and the efficiency of the analysis process which occurs when the pre-processing process is performed using the existing step-by-step equipments, and that the analysis process of the soil sample can be automatically controlled by the software The effect appears on the point.

In addition, by minimizing the error rate of the analysis result according to the laboratory environment, it is possible to obtain more accurate analysis result, and it is possible to provide the convenience of the analyst as well as the analysis cost without purchasing each equipment. And it is possible to secure reliability by applying the principle of analysis of the present process test method as it is.

1 is a perspective view showing an analytical flow 10 according to the present invention.
2 (a) and 2 (b) are perspective views showing the absorption container 100 of FIG.
3 is a partial perspective view of the absorbent container 100 of FIG.
4 is a perspective view showing an automatic injection member according to the present invention.
5 is a cross-sectional perspective view illustrating the reflux condenser 200 of FIG.
FIG. 6 is a perspective view illustrating an analytical optics 10 and an automated instrument 600 according to the present invention.
FIGS. 7 to 10 are perspective views illustrating an operational implementation of the automation equipment 600 shown in FIG.
11 is a perspective view showing an apparatus used in a conventional soil pollution analyzing apparatus.

For a better understanding of the present invention, a preferred embodiment of the present invention will be described with reference to the accompanying drawings. The embodiments of the present invention may be modified into various forms, and the scope of the present invention should not be construed as being limited to the embodiments described in detail below. The present embodiments are provided to enable those skilled in the art to more fully understand the present invention. Therefore, the shapes and the like of the elements in the drawings can be exaggeratedly expressed to emphasize a clearer description. It should be noted that in the drawings, the same members are denoted by the same reference numerals. Further, detailed descriptions of well-known functions and configurations that may be unnecessarily obscured by the gist of the present invention are omitted.

First, the apparatus for automated soil analysis according to the present invention is as described in the background art. However, the process which has to be performed by hand at each stage of the construction of the conventional apparatus and the method using the apparatus is automated by the analyzing apparatus according to the present invention. There is a feature that it is possible.

Hereinafter, a detailed description of the configuration of the present invention will be described with reference to the drawings.

As shown in FIG. 1, the apparatus for analyzing soil contamination according to the present invention includes an absorption vessel 100 provided at an upper portion thereof, a reflux condenser tube 200 coupled at a lower side of the absorption vessel 100, A reaction vessel 400 coupled by an adapter 300 below the tube 200 and an automated instrument 600 (see Figures 6-9) coupled to the above described configurations to automate the analysis.

In this case, the absorption vessel 100 and the reflux condenser tube 200 may be integrally formed, and the absorption vessel 100 and the reflux condenser tube 200 may be connected to the moving frame 620, (See Figs. 6 to 8). Also, the reflux condenser 200 and the reaction vessel 400 can be separated and combined through the adapter 300.

Accordingly, the reflux cooling tube 200 and the reaction vessel 400 can be rotatably coupled by the adapter 300, and the absorption vessel 100 and the reflux condenser tube 200 can be coupled by the adapter 300 The reaction vessel 400 can be detached and attached by using a detaching device (see FIG. 8) to be described later in a fixed state.

2, an opening 111 is formed in the absorption vessel 100 so that the water can be injected from the upper side of the absorption vessel 100. When the introduction unit 110 having the predetermined diameter is provided, And an outer tube 120 having a diameter expanded and a space formed therein.

The outer tube 120 is provided with a communication tube 130 communicating with the reflux cooling tube 200 and having a predetermined height and having an opening 131 formed at an upper end thereof so as to surround the communication tube 130, And an inner tube 140 through which the communication hole 141 is communicated to communicate with the inner space of the outer tube 120 at a position lower than the opening 131 is provided.

In addition, a discharge unit 121 is formed at the lower end of the outer tube 120 so that the remaining amount of the remaining water inside the outer tube 120 can be discharged to the outside, more specifically, the reflux cooling tube 200.

And a communication nozzle 150 rotatably attached to and detachable from the discharge unit 121 to connect the external pipe 120 and the reflux condenser 200 to each other. The communication nozzle 150 communicates with a cooling nozzle 210 of a reflux condenser 200 to be described later.

In this case, as shown in FIG. 2 (a), the communication nozzle 150 can communicate with the cooling nozzle 210 inside the reflux condenser tube 200, and as shown in FIG. 2 (b) Likewise, the communication nozzle 150 can communicate with the lower portion of the communication pipe 130 of the absorption container 100.

As shown in FIG. 3, the communication nozzle 150 is rotatably coupled to the discharge unit 121. In detail, the communication nozzle 150 is made of a Teflon material resistant to corrosiveness, is inserted into the discharge part 121 at a certain position, and is manufactured to be rotatably engaged by the coupling adapter 151.

A communication hole 141 is formed in the lower side of the inner tube 140 so that the royal water injected from the opening 111 can flow into the inner tube 140, The gas can flow into the reaction vessel 400 along with the gas to cause a chemical reaction inside the inner tube 140.

In addition, since the outer tube 120 can inject the royal flush water through the opening 111 of the charging unit 110 formed at the upper end thereof, it is possible to secure the safety of the analyst handling the strong acid.

The gas generated by the chemical reaction inside the inner tube 140 of the absorbent vessel 100 flows out of the outer tube 120 through the communication hole 141 and flows through the discharge tube 121 to the reflux cooling tube 200 In this case, the discharging unit 121 is designed to protrude diagonally downward with a diagonal structure rather than a horizontal shape, to turn the absorbing container 100 upside down by hand, There is an advantage that the king can be automatically discharged to the outside by his own weight without being removed.

In addition, the communication nozzle 150 is provided with a check valve to prevent the backflow of the water and to control the inflow amount automatically.

Therefore, when the check valve is opened in the communication nozzle 150 and then the water is injected into the absorption vessel 100, the water reaches the reflux condenser 200 through the communication nozzle 150, It can be reached to the vessel 400. This configuration can prevent safety accidents and significantly reduce the risks associated with strong acids by implementing automation in hazardous operations involving strong acids.

An automatic injection member 700 having an injection nozzle 751 to be coupled to the opening 111 is provided on the upper side of the insertion part 110 of the absorption container 100 as shown in FIG.

The automatic injection member 700 includes an injection rotation body 710 having a first nozzle 720, a second nozzle 730 and a third nozzle 740, and a lower portion 710 of the injection rotation body 710 , And a main loading station (750) provided with a charging nozzle (751) penetrating to communicate with the opening (111).

In this case, the injection rotating body 710 is made rotatable, and the first, second and third nozzles 720, 730, and 740 are equally spaced from the center of rotation in the outer peripheral direction, 710, the respective nozzles are engaged with the injection nozzles 751 of the main stocking station 750.

In addition, since different kinds of reaction reagents can be injected into the first, second and third nozzles 720, 730 and 740, automation can be prevented in a dangerous operation of handling strong acid, have.

In detail, the first, second and third nozzles 720, 730 and 740 are designed to selectively inject nitric acid, aqua regia, washing water, and the like, so that the reaction of the reaction reagent and the washing liquid Is possible.

As shown in FIG. 5, the reflux condenser 200 includes a cooling nozzle 210 and a sealing tube 240 for sealing the cooling nozzle 210.

One end of the cooling nozzle 210 communicates with the communication pipe 130 of the absorption container 100 and the other end communicates with the reaction container 400. Further, the cooling nozzle 210 is formed into a screw spiral shape so as to maximize the heat exchange by widening the contact area with the heating medium inside the closed tube 240.

In addition, an inlet hole 220 through which the heating medium flows for cooling and an outlet hole 230 through which the heating medium is discharged are formed on the upper side of the closed tube 240. Accordingly, the heat medium flowing into the inflow hole 220 is heat-exchanged with the cooling nozzle 210 to cool the contents flowing in the cooling nozzle 210.

Conventionally used cooling pipes have a long length in the vertical direction for cooling, and the volume and height of the equipment including the cooling pipes are considerably large. However, according to the present invention, the inner cooling nozzle 210 of the reflux cooling tube 200 is designed in a screw shape, and the size of the entire analysis equipment is miniaturized by significantly reducing the size in the vertical direction, It is possible to improve the disadvantages such as tearing, weakness in impact, and so on.

1, the reaction vessel 400 can be rotatably attached to and detached from the reflux condenser tube 200 by the adapter 300. The upper end of the reaction vessel 400 is connected to the reflux condenser tube 200, And is in communication with the other end, that is, the lower end of the cooling nozzle 210 when coupled.

In addition, an injection port 410 for injecting a soil sample is formed on one side of the upper end of the reaction vessel 400, so that the sample can be inserted through the injection port 410 to provide convenience to the analyst.

6, the automation equipment 600 includes a body frame 610, a moving frame 620 coupled to the body frame 610 and coupled to be movable up and down, And is rotatably coupled to the upper end of the lower plate 630 to rotate the reaction vessel 400 of the analytical flow 10 to be separated from the reflux cooling tube 200 (Not shown).

The lower plate 630 may be provided with a heating member capable of heating the reaction vessel 400 or the separation member 640 may heat itself to heat the reaction vessel 400 400 can be heated.

In the moving frame 620, a plurality of analytical flow bundles 10 are arranged and fixed. The lower plate 630 is provided with a separating member 640 as many as the number of analytical products 10 and the separating member 640 is formed in a hemispherical shape capable of holding and fixing the lower portion of the reaction vessel 400. desirable.

More specifically, the moving frame 620 fixes the reflux condenser tube 200. The reflux condenser tube 200 is integrally coupled to the absorption vessel 100, and consequently the movable frame 620 is vertically And has a function of moving the absorption vessel 100 and the reflux condenser tube 200 up and down while moving.

In another embodiment, the closed tube 240 of the reflux cooling tube 200 may include a plurality of cooling nozzles 210 to seal the cooling tubes 210, The moving frame 620 may be coupled to the sealing tube 240,

The separation member 640 may be coupled to the reaction vessel 400 and thereafter rotated in a removal direction in which the reaction vessel 400 can be separated from the adapter 300. [

Hereinafter, a specific implementation process of the soil contamination automation analyzing apparatus according to the present invention will be described with reference to FIG. 6 to FIG.

6, the lower plate 630 is out of the interior of the body frame 610 and the reaction vessel 400 of the analytical flow 10 is connected to the reflux condenser tube 200 .

Then, as shown in FIG. 7, the lower plate 630 is loaded into the body frame 610 by an operation of the analyst or automatic control by time setting by a control unit (not shown). In this case, the separating member 640 provided on the upper side of the lower plate 630 precisely enters the position corresponding to the position of the reaction vessel 400.

8, the moving frame 620 is moved downward by the control unit, so that the analytical flow 10 coupled to the moving frame 620 is also moved downward. The reaction vessel 400 is then engaged with the separating member 640.

Thereafter, the separating member 640 is rotated to separate the reaction vessel 400 from the reflux condenser tube 200.

As shown in FIG. 9, the analytical flow 10 except for the reaction vessel 400 is moved upward while the moving frame 620 is moved upward. That is, the reaction vessel 400 is placed in the separation member 640 of the lower plate 630 as it is.

10, the lower plate 630 is retracted toward the outer side of the body frame 610, and the analyzer collects and analyzes the reaction container 400 having the analyzed soil sample It will be possible.

Hereinafter, a description will be given of each step of the soil pollution automation analysis method according to the present invention, and the description of the above-described configuration of the analyzing apparatus at each step will be described.

Referring to FIG. 6 again, the analytical method to which the automatic soil pollution analyzing apparatus according to the present invention is applied includes the analytical microscope 10 as described above, the automated equipment 600 combined with the above- .

(a) Preparation of analytical fluid flow (S100)

In the preparation step (SlOO), the analytical flow 10 is prepared in an uncoupled state. In this case, the analytical flow 10 means the absorption vessel 100, the reflux condenser tube 200 and the reaction vessel 400 shown in FIG.

(b) soil sample and water preparation (S200)

A soil sample to be analyzed is sampled, finely pulverized and placed in the separated reaction vessel 400. Also, a reaction reagent is prepared to prepare a water-purifying agent.

In this case, purified water, concentrated nitric acid (HNO3) and concentrated hydrochloric acid (HCl) were prepared as the reaction reagent, and the purified water prepared from the reaction reagent was 0.5 M nitric acid, base solution (210 mL of concentrated hydrochloric acid + 70 mL of concentrated nitric acid + And standard solutions (copper, lead, nickel, arsenic, mercury, zinc, cadmium).

(b) soil sample and solution addition step (S400)

3 g of soil sample, 0.5-1 mL of purified water, 21 mL of hydrochloric acid and 7 mL of nitric acid are added to the reaction vessel 400 and mixed.

In this step, strong acids such as hydrochloric acid and nitric acid are dealt with, which can lead to significant safety accidents due to manual operation. Therefore, there is a need for a technology that can significantly reduce the risk through the automation process in this step.

That is, the reaction vessel 400 can be collected by the separating member 640 of the lower plate 630, so that there is no need to carry the reaction vessel 400, and safety accidents can be further prevented.

(c) Analytical Brillouin Coupling Step (S300)

The absorption vessel 100, the reflux condenser tube 200 and the reaction vessel 400 are combined and allowed to stand at room temperature for 16 hours so that the organic matter in the soil is slowly oxidized. Wait until the first reaction with the royal family is quiet.

In this case, the reaction vessel 400 can be coupled to the reflux condenser tube 200 by the lower plate 630 and the separating member 640, thereby realizing automation.

(d) nitric acid injection step (S400)

After the communication nozzle 150 is closed by a check valve, 15 mL of 0.5 M nitric acid is injected into the absorption vessel 100. The reaction vessel is then heated for 2 hours to decompose the sample.

In this step, a dangerous operation of handling nitric acid is included, so that there is an advantage that the automatic injection member 700 of the present invention can be automatically injected into the discharge type.

(e) Cleaning step S500

The absorption vessel 100 and the reflux condenser tube 200 are washed with 10 ml of 0.5 M nitric acid, and the washing water is transferred to the reaction vessel 400.

It is not necessary to separately separate the absorption vessel 100 and the reflux condenser tube 200 for cleaning the absorption vessel 100 and the check valve of the communication nozzle 150 is opened, 700).

(f) Sampling step (S600)

Thereafter, the reaction vessel 400 is removed by the automatic equipment 600 of the present invention, and the sample collected in the reaction vessel 400 is sampled and analyzed using AA or ICP.

In the pretreatment process for the analysis of soil samples in general, toxic acids such as water (nitric acid, hydrochloric acid) and nitric acid are used as reaction reagents. Therefore, it is troublesome to replace components due to corrosion need.

However, the present invention not only provides convenience and safety to analysts by manufacturing containers and instruments with a chemical resistant and corrosion-resistant glass material, but also expects reduction of analysis cost by remarkably reducing maintenance and repair costs of frequent parts replacement It was possible.

According to the apparatus for automatically analyzing soil contamination according to the present invention, the absorption vessel 100 and the reflux condenser tube 200 are integrated, the height of the reflux condenser tube 200 is remarkably reduced, the cooling performance is improved, By automating the removal and coupling of the container 400, it is possible to shorten the time required for the coupling and separation and cleaning time between the combination devices, and to eliminate the inconvenience of the operation.

In addition, the present invention realizes automatic separation of the reaction vessel 400 by constructing a separate automated apparatus 600 in the analytical flow 10 so that the analyst can automatically separate the reaction vessel 400 without performing the removal process Positive effects can be expected in terms of safety.

In addition, since the reaction vessel 400 must be separated and transferred to the analyzer after the pretreatment process by the analyst, the risk of the separation of the reaction vessels 400 in which the strong acid is trapped is high, , And a problem that takes a long time to analyze a large number of soil samples is solved in the present invention.

The embodiments of the apparatus for analyzing soil contamination of the present invention described above are merely illustrative and those skilled in the art will appreciate that various modifications and equivalent embodiments are possible without departing from the scope of the present invention. You will know very well. Therefore, it is to be understood that the present invention is not limited to the above-described embodiments. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims. It is also to be understood that the invention includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

10: Analytical flow 100: Absorption vessel
110: input portion 111: opening
120: outer tube 121:
130: communicating tube 131: opening
140: inner tube 141: communicating hole
150: communicating nozzle 200: reflux condenser tube
210: cooling nozzle 220: inflow hole
230: Exhaust hole 240: Closed tube
300: adapter 400: reaction vessel
410: Injection port 500: Automatic injection device
600: Automation equipment 610: Body frame
620: moving frame 630: lower plate
630: lower plate 640: separating member
700: Automatic injection member 710:
710: injection rotating body 720: first nozzle
730: second nozzle 740: third nozzle
750: Main stocking condition 751: Feeding nozzle

Claims (9)

An absorption vessel 100 provided at an upper end thereof;
A reflux condenser 200 coupled to the absorption vessel 100 at an underside thereof and integrally formed therewith;
A reaction vessel 400 coupled to the reflux cooling tube 200 by an adapter 300;
An adapter 300 rotatably coupling the reflux condenser 200 and the reaction vessel 400; And
And an automation equipment (600) for automating analysis,
The automation equipment (600)
A body frame 610;
A moving frame 620 movably coupled to the body frame 610 and fixed to the reflux cooling tube 200;
A lower plate 630 which is moved forward and backward at the lower end of the body frame 610; And
A separating member 640 rotatably coupled to the upper end of the lower plate 630 and separating the reaction container 400 from the reflux condenser tube 200 by rotating the reaction container 400;
Wherein the soil contamination analyzing apparatus comprises: The method according to claim 1,
The absorbing container 100 may have a structure,
(110) having an opening (111) formed therein so as to be able to inject aqua regia;
An outer tube (not shown) having a discharge part 121 extending from the charging part 110 and having a diameter expanded to form a space therein, 120);
A communication pipe 130 provided inside the outer pipe 120 and communicating with the reflux cooling pipe 200 and having an opening 131 at an upper end thereof;
An inner tube 140 having a relatively large diameter to enclose the communicating tube 130 and communicating with the inner space of the outer tube 120 at a position lower than the opening 131 of the communicating tube 130, (140); And
A communication nozzle 150 rotatably attached to and detachable from the discharge unit 121 to communicate the outer tube 120 and the reflux condenser tube 200 and having a check valve;
Wherein the soil contamination analysis apparatus comprises: The method of claim 2,
The discharging unit 121 discharges,
And the gas generated by the chemical reaction inside the inner pipe (140) of the absorption vessel (100) is easily discharged to the outside. The method of claim 2,
On the upper side of the charging unit 110 of the absorption vessel 100,
An automatic injection member 700 having an injection nozzle 751 to be coupled to the opening 111 is provided,
The automatic injection member (700)
A rotatable injection rotating body 710 having a first nozzle 720, a second nozzle 730 and a third nozzle 740;
A main stocking stationary body 750 fixed to a lower side of the injection rotating body 710 and provided with a feeding nozzle 751 penetrating to communicate with the opening 111;
Wherein the soil contamination analyzing apparatus comprises: The method of claim 4,
The first, second, and third nozzles 720, 730,
Wherein each of the nozzles is spaced equidistantly from the center of rotation so as to engage with the injection nozzle (751) of the main stocking station (750) during rotation of the injection rotating body (710) . The method of claim 2,
The reflux condenser (200)
And the other end is communicated with the reaction vessel 400 so that the contact area with the heating medium in the inside of the sealing tube 240 is enlarged to maximize the heat exchange. A cooling nozzle 210 formed with a plurality of nozzles 210;
An airtight tube 240 having an inlet hole 220 through which a heating medium for cooling flows and an outlet hole 230 through which a heating medium is discharged are formed on the upper side of the cooling nozzle 210;
Wherein the soil contamination analysis apparatus comprises: The method of claim 6,
Wherein the communication nozzle (150) communicates with the cooling nozzle (210) of the reflux cooling tube (200). The method of claim 6,
The closed tube (240) of the reflux condenser tube (200)
A plurality of cooling nozzles 210,
Wherein the moving frame (620) is coupled to the closure tube (240) and is movable up and down. The method according to claim 1,
The reaction vessel (400)
And an inlet (410) through which a sample can be injected is formed on one side of the upper part so that the sample can be inserted.

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