JP2994123B2 - Sample solution preparation equipment for analysis - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for efficiently preparing an analytical measurement sample in a solution state from the beginning, such as a solution in which a solid sample such as ore, steel or refractory material is previously dissolved, or a plating solution. It is.

[0002]

2. Description of the Related Art Conventionally, in an analysis work, preparation of an analysis sample requires a large amount of labor, time, and skill, so that most of the work is performed manually, and there is a strong demand for full automation. Have been. For example, Japanese Patent Publication No. Sho 57-51057 discloses a method of separating an analysis solution sample containing an undissolved solid material obtained by dissolving a solid metal sample into a solid solution and a pure solution. Analytical sample processing device equipped with a reduced pressure filtration device for band-shaped filter paper and a device for cutting filter paper, "
No. 64735 discloses “Production of a sample solution for multi-element quantitative analysis in which a lid for a container containing a sample and an acid solvent is provided with a reflux condenser, an acid solvent quantitative injection device, a gas agitating tube for solution stirring, and a washing device in the container. As described in Japanese Utility Model Publication No. 1-40030, "a dispenser for chemical analysis for automatically and repeatedly dispensing a fixed amount of a reagent or the like to a large number of samples" has been developed. However, these proposals have mechanized individual components in an analysis operation of a complicated process in the past, and have not automatically automated the preparation of an analysis sample solution for analysis and measurement.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to provide an analytical sample solution preparation apparatus which automatically prepares an analytical sample solution based on such circumstances. The gist is
A container containing a sample solution to be analyzed can be washed in a sample rack for analysis provided with a mechanism capable of heating a sample rack placed in the order registered in the control personal computer, and a transport frame running on the rack. A sample solution sampling device for analysis provided with a sample solution sampling nozzle of a suction and discharge mechanism which can be moved up and down, a first horizontal moving device for holding a container for receiving a solution collected by the device at a predetermined position, and an eccentric container stock It has an intermediate processing container supply device that sends out two containers required for solution preparation by a cam rotation mechanism, and a cleaning mechanism for the filtration surface, and discharges the sample filtration solution for analysis to the intermediate processing container on the horizontal transfer device. And a sample solution separation sampling nozzle of a suction and discharge mechanism capable of washing a transport frame running on the separation unit, which accurately separates and collects a required amount from a filtered solution obtained from the filtration device. Elevating A sample solution partial fluid collecting device provided,
A filtered solution that collects a sample that has been prepared, moves to the injection position of the rear filtration device, and discharges it. A collecting device, a sample solution discharged by the filtered solution collecting device, a rear filtration device having a mechanism for washing a filtration surface, and discharging and supplying a sample filtered solution for analysis to an intermediate treatment container on a horizontal transfer device; In order to distribute the prepared and filtered sample solution, the transfer frame is moved from the dispensing position to a predetermined position where a container for receiving the sample solution collected for distribution to the second horizontal moving device is on standby. A sample solution distributing device provided with a sample solution distributing nozzle of a possible suction / discharge mechanism so as to be movable up and down, and a second water for holding a container for receiving the sample solution for distribution collected by the device at a predetermined position A moving device, a waste liquid absorption arm provided with a waste liquid nozzle of a suction and discharge mechanism that can be raised and lowered, a disposal device provided with a horizontally slidable table for disposing of containers used for processing, and a sample for analysis. This is a sample solution preparation device for analysis, comprising a horizontal transfer device that moves while holding the containers in order to transfer the two containers to be stored to each processing device.

Hereinafter, the present invention will be described in detail with reference to the drawings. 1 is a plan view of the present invention, FIG. 2 is a schematic cross-sectional view taken along the line AA of FIG. 1, and FIG.
FIG. 5 is a schematic cross-sectional view taken along line CC of FIG. 1.
1 is an analysis sample solution rack, 2 is an analysis sample solution sampling device, 3 is a first horizontal moving device, 4 is an intermediate processing vessel supply device, 5 is a front filtration device, and 6 is a sample solution portion. Liquid sampling device, 7 is a filtered solution sampling device, 8 is a rear filtration device, 9
Is a sample solution distributing device, 10 is a second horizontal moving device, 11 is a discarding device, 12 is a horizontal transfer device, 13 is a control personal computer, and 14 is a control panel.

The sample solution rack 1 for analysis shown in FIG.
A solution in which a solid sample such as a steel or a refractory material is dissolved in advance or a sample solution for analysis in a solution state such as a plating solution is accommodated, and containers a registered in a control personal computer are sequentially placed on individual racks 15. A heating mechanism 16 is provided so that the container containing the analysis sample solution to be heated and maintained can be heated.
Is provided as needed. The figure shows a case where many containers a are arranged in a line. The control personal computer 13 stores the mixing order and the mixing condition of each container a.

In the sample solution collecting device 2 for analysis, a sample solution sampling nozzle 18 such as a burette of a suction / discharge mechanism which can be washed via a sample sampling arm 19 is mounted on a transport frame 17 running above the sample solution rack 1 for analysis. One or two or more are arranged in parallel so as to be able to move up and down. 22 is a pipe for feeding distilled water for washing, 21 is a pipe for a gas suction / discharge mechanism, and 23
Is the switching valve. That is, the sample solution collecting apparatus for analysis 2 receives the operation signal of the control personal computer 13, travels to a predetermined position on the designated container a and stands by, and then the sample solution collecting nozzle 18 descends to move the container a, a designated amount of the sample solution for analysis in the sample a is sucked and collected, and the sample solution is moved to the container b waiting at a predetermined position of the first horizontal moving device 3 and discharged, or, as shown in FIG. The sample solution is transferred and discharged to the position D on the processing container c which is supplied from the container supply device 4 and is on standby, or to the inlet C of the front filtration device shown in FIG. Here, an auxiliary agent addition nozzle 38 is provided at a standby position of the intermediate processing container c so that a necessary amount of auxiliary agent of a required type can be supplied in a required amount to perform mixing. After transferring the sample solution for analysis, the sample solution collecting nozzle 18 is constructed to return to the position of the washing tank 24 shown in FIG. 2 and wash the inside of the nozzle with distilled water.

The first horizontal moving device 3 moves the container b to a position for receiving the sample solution for analysis discharged from the sample solution collecting device 2 for analysis, and is arranged on a conveyor 30 provided in parallel. The container b is provided in a means for receiving the driving operation of the control personal computer 13 and transferring it to a predetermined position. The container b receiving the liquid discharged from the sample solution collecting apparatus for analysis in the container waiting at a predetermined position is shown in FIG.
As shown in (b), a necessary amount of auxiliary agent is supplied from an auxiliary agent addition nozzle 31 provided for each reagent in the vicinity of the discharge position, and then the conveyor 30 is returned to the take-out position.
Transported by To send out the container b, first, the conveyor 30 is rotated. At this time, the container b is fixed at that position by the cam 32, but is rotated in the direction of rotation of the conveyer by rotating the container by about a quarter in order to send out the container, and is transported to the take-out port and stands by. During rotation of the cam, the subsequent container cannot travel with the stopper at the rear of the cam and is fixed at that position. When the cam rotates in the reverse direction and returns to the original position, the succeeding container advances and moves to the discharge position, where it is fixed by the stopper at the front of the cam and stands by at that position. Then stop the conveyor rotation.

The intermediate processing container supply device 4 is used for storing a sample solution or storing the mixed sample solution until the preparation is completed in each processing line and the processing is completed. 4 for supplying the container c to be used, and a container set in advance as shown in FIG.
From the container stocks 35 arranged in parallel supported by the eccentric cams 34 provided at the lower portions of the respective columns, two containers required for solution preparation by the rotation mechanism of the eccentric cams 34 are placed on standby at the lower portions of the container stocks. Slide table 3
6 The slide base 36 is a guide 37 that can be moved up and down.
And raises the guide to hold the supplied container.
The slide table holding the container slides the table in the horizontal direction to transfer the container to a line for preparing the sample solution.
After the transfer, the guide descends.

As shown in FIG. 4, the front filtration device 5 includes an upper filter 39 having a washing mechanism for the filtration surface and capable of moving up and down, and a lower filter 40 having a suction mechanism. The filter paper is supplied by the pinch roller 41 between the filters, the upper filter is lowered, the filter paper is sandwiched, and when the sample is discharged from the inlet of the upper filter, the sample is discharged from the lower filter and forced under reduced pressure. And filtered. After the filtered solution is once held by the lower filter, the pinch cock 42 is opened, and then stored in a container waiting below. The filter is provided with a washing function, and the inside of the filter is washed by pouring distilled water from the upper filter and performing suction filtration similarly to the sample. The waste liquid after the washing is moved below the discharge port of the lower filter by moving the discharge receiver 43 to the waste liquid line to open the pinch cock and discharge the solution.

The sample solution separating / sampling device 6 accurately separates and collects a required amount of the filtered solution accommodated in the above-mentioned processing container, transfers it to the position of the other processing container while holding it, and discharges the sample solution. As shown in FIG. 4, one or two or more transport frames 51 running in the sample solution separating apparatus 6 and between the cleaning tanks 55 and a sample solution separating nozzle 53 of a suction / discharge mechanism capable of washing are provided. Are arranged in parallel to be able to move up and down.

In a filtered solution collecting apparatus 7 shown in FIG. 5, a sample solution collecting nozzle is put into a container of a solution that has been prepared, air is blown out, bubbling is performed, and a required amount is collected. A transport frame 61 that can travel in the horizontal direction between the filtration solution collection device 7 and the rear filtration device 8 and a filtration solution collection nozzle 63 of a suction / discharge mechanism that can be washed are provided to be movable up and down. It is a thing. The filter is used to prevent troubles such as clogging during measurement due to undissolved substances in the sample solution, and the mechanism is the same as that of the above-described front filter. The filtered sample solution is stored in the empty container c.

The sample solution distributing device 9 distributes a required amount of the prepared solution to the waiting container d in the second horizontal moving device 10, and moves the sample solution from the sampling position to the second horizontal moving device. A transport frame 77 that can travel between containers in standby, and a sample solution distribution nozzle 79 of a suction / discharge mechanism that can be washed.
The sample solution distributing nozzle 7
9 is placed in the intermediate processing container in which the prepared sample solution is stored, air is blown out, bubbling is performed, a required amount of the sample solution is collected, and the second signal specified by the operation signal of the control personal computer 13 is received. Container d waiting on horizontal moving device
The sample solution dispensing nozzle is lowered to discharge the sample solution into the container. After discharging, move to cleaning tank 80,
The washing is performed in the same manner as in the sample solution collecting device for analysis.

The second horizontal moving device 10, which has received the sample solution from the device, uses a mechanism similar to the first horizontal moving device to transfer the container, which has received the sample solution, to a take-out position by the conveyor 81. The discarding device 11 is for discarding the sample solution remaining in the container after completion of all the processing steps to the waste acid line, and after discarding the sample solution that can be lifted up and down and a liftable waste liquid nozzle 83 for discarding the remaining sample solution. And a horizontally slidable table 84 for discarding the container No. in a disposal box 85 below the disposal device.

The horizontal transfer device 12 moves the intermediate processing container c supplied from the intermediate processing container supply device 4 to each processing device, and includes a transfer arm 86 for holding the container c,
The transfer arm is provided with a transfer frame 87 that can move up and down by rotation and can move one step in the horizontal direction. The horizontal transfer device is composed of three transfer frames and a transfer arm attached to the position of each processing device between the intermediate processing container supply device 4 and the disposal device 11, and the transfer is performed by rotating the transfer frame. Raise the arm to hold the container. In this state, the transport frame is moved in the horizontal direction by one processing step, and the transport frame is rotated in the reverse direction to place the container. The transport frame moves horizontally in the opposite direction to the direction during transport and waits at the original position. This repetitive operation is performed for each step, and the container is simultaneously moved.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The operation and effect of the present invention having the above-described configuration will be described with reference to an embodiment. First, a sample to be processed is registered in the control personal computer 13. The registered sample is set as it is in the dedicated sample rack 15 shown in FIG. 2 in accordance with the registration order for each container, and the rack is set in the sample solution rack 1 for analysis. For samples that require heating due to dissolution of precipitates, etc., register them in the pre-registered dedicated heating location on the control personal computer, and then directly set the sample containers in the heating tank 16 in the order of registration. I do. When the automatic operation is started after the setting of the sample container, the preparation order (for example, the order of the measurement groups of the analyzers) that can be efficiently processed is determined from the preparation contents of the sample registered in the control personal computer, and the control unit 14 is instructed. I do. The sample solution sampling device 2 for analysis operates the transport frame 17 running on the rack to the designated sample container according to an instruction from the control unit, and moves the sample solution sampling nozzle 18 accurately. Next, the sample solution sampling nozzle corresponding to the sampled amount is lowered by the sample sampling arm 19, and the tip of the nozzle 18 is placed in the container. Suction is performed from the sample collection burette 20, and an arbitrary amount of the sample is sampled at a constant volume. After collection, the sample solution collection nozzle is raised by the sample collection arm, and the transfer frame is operated to a discharge position suitable for each preparation content. During transfer, the switching valve 23 is switched to the pipe of the gas suction / discharge mechanism 21 shown in FIG. 3A so that the sample solution is not dripped from the sample solution sampling nozzle due to vibration or the like, and the sample solution moves while continuing suction.

Since the processing after the transport of the sample solution differs for each processing content, it will be described later, but after discharging the sample solution, it is moved to the cleaning tank 24 for cleaning. As shown in FIG. 3 (c), the washing is performed by lowering the sample solution collecting nozzle to a position where the washing water is filled in the washing tank, and suctioning the washing water on the sample solution collecting burette side to wash the inside of the nozzle. Next, the switching valve is switched to allow the washing water to flow from the washing distilled water supply pipe 22,
Rinse and discharge. The overflowing washing waste liquid is sent to the waste liquid line 25.
It is discharged to the waste acid tank. After the cleaning, the remaining liquid in the nozzle is sent and discharged from the gas suction / discharge mechanism pipe. The washing water in the washing tank is discharged to the waste acid tank by switching the valve 27 for the waste liquid line 26 every time. Fresh cleaning water is supplied from a cleaning water supply line 28 to the cleaning tank 24 by a pump 29. The sample solution collecting apparatus for analysis waits until the next collection instruction is issued.

When the undiluted solution is used as it is:
When it is necessary to measure the undiluted solution as it is as in the case of pH measurement, the sample solution sampling nozzle 18 is accurately moved by the transport frame 17 to the discharge position A of the pH line of the first horizontal moving device as shown in FIG. The sample solution sampling nozzle 1 is placed on the container b waiting at the discharge position by the sample sampling arm 19.
8 is lowered to discharge the entire amount. At this time, a container that can be directly set in the sample changer of the measuring device is set in advance as a container to be used. The container b containing the sample solution is sent out by the cam 32, moves to the take-out port by the belt conveyor 30, and returns by the cam, so that the subsequent container moves and stands by at the discharge position. If the container runs out, it is detected by an optical sensor attached to the position where the container is on standby, and a warning is given to the operator. In case of trouble in discharging the container containing the sample solution, the passage is monitored by passing an optical sensor on a conveyor through which the container passes, and an alarm is issued when an abnormality occurs.

In the case of using a compound solution with a diluent or an auxiliary without the need for filtration: for example, when preparing a sample solution by mixing with a diluent or an auxiliary such as a sample for titration, The sampling nozzle 18 is accurately moved to the discharge position B as described above, and is discharged to the container waiting under the discharge position in the same manner as described above. After the discharge, the switching valve 23 is switched to supply distilled water from the cleaning distilled water supply pipe 22, and the entire amount of the sample is discharged while rinsing the inside of the nozzle. Since the distilled water used at this time is for dilution, the amount of distilled water necessary for dilution is used. To the container containing the sample solution, necessary types of auxiliary agents are added from the auxiliary agent addition nozzle 31 for adding an auxiliary agent such as an acid which is attached at the same position at the time of discharging the sample. . After the preparation is completed, the mixture is transferred to the take-out port in the same manner as described above, and the next container waits at the discharge position.

When pre-filtration is required due to undissolved substances or precipitates: For example, when a sample containing a high-concentration salt and containing undissolved substances or precipitates is collected, a solution is collected by filtration when aspirating the sample. The sample solution is sampled in the sample solution sampling nozzle 18 in consideration of the loss of the sample solution. The sample solution is accurately moved to the sample inlet C of the front filtration device shown in FIG. Is discharged in full. At this time, filter paper is sandwiched between the upper filter 39 and the lower filter 40, and the filtrate discharge port 46 provided in the lower filter is
2 is closed. At the same time as the sample is discharged, the inside of the lower filter is set to a negative pressure by the exhaust pump 47 to perform suction filtration. The sample solution sampling nozzle moves to the washing tank and performs washing.

After the filtration, the pinch cock 42 is opened, and the filtered solution is discharged into the intermediate processing container c which is waiting under the filtering device. After the filtrate is discharged, the inside of the filter is washed by injecting washing water from a washing distilled water pipe 48, and after washing, the discharge receiver 43 is moved to the filtrate discharge port, and the washing waste liquid is discharged to the waste acid line. I do. The liquid remaining in the filter is purged by blowing air into a purge gas discharge mechanism 49 and discharged. After the washing is completed, the upper filter 39 is moved to the elevating mechanism 5.
Then, the filter paper to be used next is exchanged by a fixed amount of a roll filter paper 45 by a pinch roller 41.
If the filter paper has run out, it is detected by the sensor 44 and the operator is notified by an alarm. The container containing the filtered solution and the other container are transported by the horizontal transport device 12 to the sample solution separating device 6 in the next step to perform a liquid separating operation. The sample solution separation sampling nozzle 53 is moved by the transport frame 51 to the position of the container storing the filtrate, and the sample solution separation sampling nozzle corresponding to the separated amount is lowered by the separation solution arm 52, and the intermediate processing container Aspirate exactly the required amount of sample solution inside.

Next, the sample solution separation nozzle is raised and transferred to the other intermediate processing container to be discharged. After the discharge, the entire amount of the sample is discharged while rinsing the inside of the nozzle with the distilled water for washing, similarly to the sample solution collecting nozzle 18. Since the distilled water used at this time is for dilution, an amount of distilled water necessary for dilution is used. In the container where the sample solution is stored,
In order to add a plurality of auxiliaries such as acid attached at the same position at the time of discharging the sample solution, necessary types of auxiliaries are added from the auxiliary agent addition nozzle 54 in a required amount, respectively, and the mixture is prepared and fixed. The sample solution separation nozzle 53 moves to the cleaning tank 55 and performs cleaning by the same mechanism as the sample solution collection nozzle 18. The two intermediate processing containers are transported to the next step by the horizontal transport device 12, but are not processed by the filtered solution collection device 7 and the rear filtration device 8, and are transported to the position of the sample solution distribution device 9. Perform a distribution operation.

As shown in FIG. 5, in the sample solution dispensing device 9, the sample solution distributing nozzle 79 is accurately moved by the transfer frame 77 to the intermediate processing container storing the prepared sample solution, and the dispensing arm 78 is used to move the nozzle. And air is blown from the nozzle to perform bubbling.
Thereafter, a required amount of the sample solution is sucked and collected, and the nozzle is raised. Transfer to the position of the dedicated container d for each device waiting in the second horizontal moving device 10 while performing suction so as not to drip from the nozzle according to the instruction from the control unit,
Discharge the entire amount. After the discharge, the nozzle moves to the cleaning tank 80 to clean the inside of the nozzle. The cleaning mechanism is the same as described above.

The second horizontal moving device 10 is the first horizontal moving device 10 described above.
With the same mechanism as the horizontal moving device 3, the container d is
Is transported by the conveyor 81 and goes to the take-out port. When the cam 82 returns to the original position, the subsequent container waits at the discharge position. The waste liquid device 11 lowers the waste liquid nozzle 83 to each of the two intermediate processing containers transported by the horizontal transport device 12, and discharges all the residual liquid in the container to the waste acid line by suction. After the discharge, the slide table 84 is slid in the horizontal direction while keeping the nozzle as it is,
The emptied intermediate processing container is dropped into a disposal box 85 provided therebelow and discarded. Thereafter, the slide table returns to the original position, the waste nozzle also rises, and returns to the original position and waits.

When filtration is required after the preparation of the sample solution: For example, in the measurement of ICP (solution emission spectroscopy), clogging or the like occurs during the measurement due to undissolved substances in the measurement solution, and After the preparation of the sample solution, a filtering operation is performed for those that may have an effect. In this case, FIG.
As shown in the figure, the sample solution collection nozzle 18 that has collected the required amount of the sample solution is moved from the intermediate processing container supply device 4 to the position D of the intermediate processing container c supplied to the processing line by the slide table 36, and And discharge it into a container. After the discharge, distilled water is supplied from the distilled water supply pipe 22 for washing, and the entire amount of the sample is discharged while rinsing the inside of the nozzle.
A plurality of auxiliary additive nozzles 3 provided at the same position at the same time
8. Add necessary amount of auxiliary agent such as acid from 8 and mix and make volume.

The two intermediate processing containers are transported to the next step by the horizontal transport device 12, where they are transported to the filtered solution collecting device 7 where the amount of sample solution required for filtration is transferred to the sample solution collecting nozzle shown in FIG. Collect at 63. First, the filtered solution collecting nozzle 63 is moved to the position of the intermediate processing container containing the solution prepared by the transport frame 61, the nozzle is lowered by the filtered solution collecting arm 62, and air is blown and bubbled. Aspirate the required amount of sample solution. The nozzle is raised and moved accurately to the sample injection position E of the rear filtration device 8, and the filtered solution collection nozzle 63 is lowered to discharge the entire amount of the sample solution. The filtered solution collection nozzle 63 moves to the washing tank 64 and performs washing. Filtration and washing of the inside of the filtration device are performed by the same mechanism as that of the front filtration device 5 described above, and are transferred to a position below the filtrate discharge port 72 of the rear filtration device and stored in a standby intermediate processing container. . As explained below, distribution to the container d for each measuring device,
Dispose of residual liquid and containers in the intermediate treatment container.

[0026]

As described above, the present apparatus is divided into the respective processing steps, and the sample solution distributed by the sampler for analysis is transported to the processing step by a horizontal transfer device or the like as needed, and a plurality of sample solutions are obtained. Each device processes the solution at the same time, and when all devices have been processed, it is transported to the next process for processing, enabling efficient sample preparation and continuous processing that does not require manual intervention. I do.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of a blending device according to the present invention.

FIG. 2 is a schematic sectional view taken along the line AA of FIG. 1;

FIG. 3 is an explanatory diagram of each device in FIG. 2;

FIG. 4 is a schematic sectional view taken along line BB of FIG. 1;

FIG. 5 is a schematic sectional view taken along the line CC of FIG. 1;

[Explanation of symbols]

REFERENCE SIGNS LIST 1 analysis sample solution rack 2 analysis sample solution sampling device 3 first horizontal moving device 4 intermediate processing vessel supply device 5 front filtration device 6 sample solution separation sampling device 7 filtration solution sampling device 8 rear filtration device 9 sample solution distribution Apparatus 10 Second horizontal moving device 11 Discarding device 12 Horizontal transport device 13 Control personal computer 14 Control panel 15 Sample rack 16 Heating tank 17 Transport frame 18 Sample solution sampling nozzle 19 Sample sampling arm 20 Sample sampling burette 21 Gas suction and discharge mechanism pipe 22 Distilled water feed pipe for washing 23 Switching valve 24 Wash tank 25 Waste acid line 26 Waste acid line 27 Valve 28 Distilled water feed line for washing 29 Pump 30 Conveyor 31 Auxiliary additive nozzle 32 Cam 33 Post 34 Eccentric cam 35 Container Stock 36 Slide base 37 Guide 38 Auxiliary additive nozzle 39 Upper Filter 40 Lower Filter 41 Pinch Roller 42 Pinch Cock 43 Discharge Receptor 44 Sensor 45 Roll Filter Paper 46 Filtrate Discharge Port 47 Gas Discharge Pump 48 Distilled Water Supply Pipe for Cleaning 49 Gas Discharge Mechanism Pipe 50 Lifting Mechanism 51 Transfer frame 52 Liquid separation sampling arm 53 Sample solution separation sampling nozzle 54 Auxiliary agent addition nozzle 55 Wash tank 56 Waste acid line 57 Waste acid line 58 Valve 59 Cleaning distilled water supply line 60 Pump 61 Transfer frame 62 Filtration solution sampling arm 63 Filtration solution collection nozzle 64 Cleaning tank 65 Upper filter 66 Lower filter 67 Pinch roller 68 Pinch cock 69 Discharge receiver 70 Sensor 71 Roll filter paper 72 Filtrate discharge port 73 Gas discharge pump 74 Washing distilled water feed pipe 75 Gas discharge mechanism pipe 7 Lifting mechanism 77 Transport frame 78 Distribution arm 79 Sample solution distribution nozzle 80 Cleaning tank 81 Conveyor 82 Cam 83 Waste liquid nozzle 84 Slide table 85 Waste box 86 Transport arm 87 Transport frame 88 Waste acid line 89 Waste acid line 90 Valve 91 Distilled water for cleaning Feeding line 92 Pump a Preparation sample solution storage container b Prepared sample solution storage container c Intermediate processing container d Prepared sample solution storage container

──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Shinichi Matsunaga 1-1 Yawata-cho, Tobata-ku, Kitakyushu-shi, Fukuoka Nippon Steel Corporation Yawata Works (72) Inventor Takayuki Yoshida Tobata-ku, Tobata-ku, Kitakyushu-shi, Fukuoka No. 1-1, Nippon Steel Corporation Yawata Works (72) Inventor Masaaki Ohashi 41, 1-1, Makishima-cho, Uji City, Uji City, Kyoto Prefecture Inside My Chronics Co., Ltd. (72) Kunio Shano, Uji City, Kyoto Prefecture 41, Makishima-cho, No. 41 My Chronics Co., Ltd. (56) References JP-A-3-41364 (JP, A) JP-A-56-162062 (JP, A) JP-A-59-58336 (JP, A) JP-A-3-262966 (JP, A) JP-A-63-205110 (JP, A) JP-A-64-29770 (JP, A) JP-A-60-49242 (JP, A) JP-A-4-22870 (JP, A) Hirai 1 40030 (JP, U) JitsuHiraku Akira 58-153361 (JP, U) Tokuoyake Akira 57-51057 (JP, B2) (58 ) investigated the field (Int.Cl. ^6, DB name) G01N 1/10 G01N 1 / 28 G01N 35/02 G01N 35/04

Claims (1)

(57) [Claims] 1. A container containing a sample solution to be analyzed,
A sample solution rack for analysis provided with a heating mechanism on a sample rack placed in the order registered in the control personal computer, and a sample solution sampling nozzle of a suction / discharge mechanism capable of washing on a transport frame running on the rack are provided so as to be movable up and down. A sample solution collecting device for analysis, a first horizontal moving device for holding a container for receiving the solution collected by the device at a predetermined position, and two containers necessary for solution preparation by a rotating mechanism of an eccentric cam. It has an intermediate processing container supply device that sends out the container, and a cleaning mechanism for the filtration surface.
And a front filtration device that discharges and supplies a sample filtration solution for analysis to an intermediate treatment container on a horizontal transport device, and accurately separates and extracts a required amount from the filtration solution obtained from the filtration device. A sample solution separation sampling device provided with a sample solution separation sampling nozzle with a suction and discharge mechanism that can be washed up and down on the transport frame that travels, and a sample that has been prepared is collected and moved to the injection position of the rear filtration device. Discharge, a filtered solution sampling device provided with a filter solution sampling nozzle of a suction / discharge mechanism capable of being washed up and down on a transport frame traveling from the sampling position to the injection position, and a sample solution ejected by the filtered solution sampling device,
A rear filtration unit that has a filtration surface washing mechanism and discharges and supplies the sample filtration solution for analysis to the intermediate processing container on the horizontal transfer device, and from the distribution position to distribute the sample solution that has been mixed and filtered. A sample solution having a sample solution distributing nozzle of a washable suction / discharge mechanism provided on a transport frame that travels to a predetermined position where a container for receiving a sample solution collected for distribution in a second horizontal moving device is on standby and movable up and down. A dispensing device, a second horizontal moving device for waiting a container for receiving the dispensing sample solution collected by the device at a predetermined position, a waste liquid absorbing arm provided with a waste liquid nozzle of a suction and discharge mechanism that can be raised and lowered, and While disposing of the used containers, a disposal device provided with a horizontally slidable table, and two containers for storing an analysis sample for preparation to each processing device, while holding the containers, Move Analytical sample solution preparation apparatus characterized by comprising a horizontal conveyor unit.