JP2008102032A - Rack conveyance mechanism and automatic analyzer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rack conveyance mechanism capable of removing surely static electricity charged on a container regardless of a surrounding environment or the kind of the container, and an automatic analyzer equipped with the rack conveyance mechanism. <P>SOLUTION: This mechanism is equipped with a transfer belt 211 comprising a series of members, for placing thereon and transferring a rack 41 for loading a plurality of sample containers 71; and a pair of discharging brushes 26, 27 for removing static electricity charged on the container, which are contactable with the sample containers 71 loaded on the rack 41 transferred by the transfer belt 211, and which are elongated respectively in the rack transfer direction of the transfer belt 211 and mutually opposite directions which are directions orthogonal to the normal direction of a rack placing surface of the transfer belt 211. The interval between the pair of discharging brushes 26, 27 in the rack transfer direction of the transfer belt 211 is set at a half of the interval P between each sample container 71 loaded on the rack 41. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a rack transport mechanism that transports a rack on which a plurality of containers are mounted, and an automatic analyzer that includes the rack transport mechanism and performs automatic and continuous analysis of a sample stored in each container.

  In an automatic analyzer that analyzes the components of a sample by reacting the sample with a reagent, the sample contained in the sample container is dispensed into a predetermined reaction container, and the reagent corresponding to the inspection item is stored in the reaction container. To cause a reaction. In order to quickly dispense such a sample, the automatic analyzer is provided with a rack transport mechanism for transporting a rack in which a plurality of sample containers are mounted together.

  When dispensing a sample in an automatic analyzer, the liquid level of the sample is detected so that the dispensing probe does not get into the sample more than necessary, but the sample container is charged with static electricity. However, there was a problem that the liquid level was erroneously detected. As a technology to prevent such misdetection of the liquid level, a technology that removes the static electricity charged in the sample container by bringing a metal brush (static charge brush) into contact with the sample container mounted on the rack being transported Is known (see, for example, Patent Document 1). When providing a static elimination brush, adjust the extension length and height of the static elimination brush so that the friction that occurs when it comes into contact with the sample container becomes too large to prevent the progress of the rack. Applied.

JP 11-271319 A

  However, for example, when the above-described automatic analyzer is used in an area where the atmosphere is remarkably dry, more static electricity may be charged than assumed in the sample container. The neutralizing brush could not obtain a sufficient neutralizing effect.

  When analyzing a small amount of sample, a small container may be placed on top of a large container such as a test tube. Although the small container is made of plastic and easily charged with static electricity, the container Since the portion other than the upper end portion is inside the sample container, it is difficult to remove static electricity by bringing the neutralizing brush into contact with the small container.

  The present invention has been made in view of the above, and includes a rack transport mechanism that can reliably remove static electricity charged in the container, and the rack transport mechanism, regardless of the surrounding environment and the type of the container. Another object of the present invention is to provide an automatic analyzer.

  In order to solve the above-described problems and achieve the object, the rack transport mechanism according to the first aspect of the present invention comprises a series of members, and transport means for placing and transporting a rack on which a plurality of containers are mounted. The container mounted on the rack to be transported by the transport means, and the direction of the rack transport direction of the transport means and the direction normal to the rack mounting surface of the transport means are mutually opposite. And a pair of static elimination brushes that respectively remove static electricity charged in the container, and a distance between the pair of static elimination brushes in the rack transfer direction of the transfer means is set by the rack. It is characterized by being 1/2 of the interval.

  According to a second aspect of the present invention, in the first aspect of the invention, the pair of static eliminating brushes reach a position higher than the highest point in the vertical direction of the container mounted on the rack that is transferred by the transfer means. It is characterized by being.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, the pair of static eliminating brushes are arranged along a transfer path of the transfer means in a plane perpendicular to the mounting surface of the rack in the transfer means. It extends to the surface which passes the center of the width direction of this rack transfer path | route.

  Invention of Claim 4 is an automatic analyzer which analyzes the component of the said sample by making a sample and a reagent react, Comprising: The rack conveyance mechanism as described in any one of Claims 1-3, and the said A sample dispensing means for dispensing a sample contained in the container mounted on the rack, which is located behind the pair of static eliminating brushes along the rack transfer direction of the transfer means and is transferred by the transfer means; It is provided with.

  According to the present invention, it is composed of a series of members, and is capable of contacting the container mounted on the rack to be transferred by the transfer means, the transfer means for mounting and transferring a rack on which a plurality of containers are mounted, A pair of charge-removing brushes extending in directions opposite to each other in a direction perpendicular to the rack transfer direction of the transfer means and the normal direction of the rack mounting surface of the transfer means, and removing static electricity charged in the container; The distance between the pair of static eliminating brushes in the rack transfer direction of the transfer means is set to 1/2 of the interval at which the rack mounts the container, regardless of the surrounding environment and the type of the container, It is possible to provide a rack transport mechanism capable of reliably removing static electricity charged in the container, and an automatic analyzer including the rack transport mechanism.

  The best mode for carrying out the present invention (hereinafter referred to as “embodiment”) will be described below with reference to the accompanying drawings. FIG. 1 is a diagram schematically showing a configuration of a main part of an automatic analyzer according to an embodiment of the present invention. The automatic analyzer 1 shown in FIG. 1 dispenses a sample (specimen) and a reagent into a predetermined reaction container, and performs a measurement unit 101 for optical measurement of a liquid (reaction liquid) in the reaction container. And a data processing unit 102 for controlling the automatic analyzer 1 including the measurement unit 101 and analyzing the measurement result in the measurement unit 101, and by linking these two units, It is a device that performs biochemical analysis automatically and continuously. The “liquid” here includes a liquid containing a small amount of a solid component.

  The measurement unit 101 includes a sampler 2 that supplies, collects, and stores a plurality of racks 41 on which sample containers 71 that store samples are mounted, a reagent container holding unit 3 that holds a reagent container 81, a sample, a reagent, A reaction container holding unit 4 for holding the reaction container 91 for reacting the sample, a sample dispensing unit 5 for dispensing a sample contained in the sample container 71 on the sampler 2 to the reaction container 91, and a reagent container holding unit 3 A reagent dispensing unit 6 that dispenses the reagent contained in the reagent vessel 81 into the reaction vessel 91, a stirring unit 7 that agitates the liquid contained in the reaction vessel 91, and the light that has passed through the reaction vessel 91 A photometric unit 8 that receives light and measures the intensity of a predetermined wavelength component and the like, and a cleaning unit 9 that cleans the reaction vessel 91 using a cleaning liquid made of ion-exchanged water or the like are provided.

  The reagent container holding unit 3 and the reaction container holding unit 4 are attached to the wheel for accommodating and holding the reagent container 81 and the reaction container 91, respectively, and the wheel is rotated about a vertical line passing through the center of the wheel. Driving means (not shown). The inside of each container holding part is kept at a constant temperature. For example, the inside of the reagent container holding unit 3 is set to a temperature lower than room temperature in order to suppress the deterioration and denaturation of the reagent, while the inside of the reaction container holding unit 4 is set to a temperature similar to the human body temperature. The In addition, since two types of reagents are often used for one sample when performing biochemical analysis, the reagent container holding unit 3 for the first reagent and the reagent container holding unit 3 for the second reagent are used. And a reagent dispensing unit 6 corresponding to each reagent container holding unit 3 may be separately provided.

  The sample dispensing unit 5 includes a thin tubular probe 51 that sucks and discharges a sample, an arm 52 that moves the probe 51 in the vertical direction and rotates in the horizontal direction, a probe cleaning unit 53 that cleans the probe 51, An intake / exhaust mechanism (not shown) realized by an intake / exhaust syringe or the like. Further, the sample dispensing unit 5 has a liquid level detection mechanism based on a capacitance method. As this liquid level detection mechanism, a conventionally known technique can be applied (see, for example, JP-A-5-1934). Similarly to the sample dispensing unit 5, the reagent dispensing unit 6 includes a probe 61, an arm 62, a probe cleaning unit 63, an intake / exhaust mechanism, and a liquid level detection mechanism. The cleaning liquid used in the probe cleaning units 53 and 63 may be the same as the cleaning liquid used in the cleaning unit 9.

  The photometry unit 8 receives a light source 8a that emits white light, a spectroscopic optical system 8b that splits the white light that has passed through the reaction vessel 91, and light that is spectrally separated by the spectroscopic optical system for each component and converts it into an electrical signal. Light receiving element 8c.

  By the way, in FIG. 1, since the main purpose is to schematically show the main components of the measurement unit 101, the positional relationship between the components is not always accurate. The exact positional relationship between the components is determined according to various conditions such as the number of reagent container holding parts 3 and the rotation mode of the wheel of the reaction container holding part 4 in the interval of the dispensing operation.

  Next, the configuration of the data processing unit 102 will be described. The data processing unit 102 is realized by a computer having a CPU, a ROM, a RAM, and the like. The data processing unit 102 includes a keyboard, a mouse, and the like, and includes an input unit 10 that receives information necessary for analyzing a sample, information including an operation instruction signal of the automatic analyzer 1, and a display device such as a liquid crystal. An output unit 11 that outputs information related to the analysis of the sample, an arithmetic operation based on the measurement result of the measurement unit 101, and generates an analysis data of the sample; A storage unit 13 that stores various types of information including information related to the analysis device 1 and a control unit 14 that controls each function or means of the automatic analysis device 1 are provided.

  FIG. 2 is a diagram illustrating a configuration of the rack 41 and the sample container 71 mounted on the sampler 2. In the rack 41, a plurality of recesses 42 for holding the sample containers 71 are formed at equal intervals P along the longitudinal direction. A plurality of depressions 44 are formed at the bottom of the side surface 43 in the longitudinal direction of the rack 41 so as to correspond to the respective recesses 42. The interval between the protrusions 45 corresponding to the boundary between the adjacent recesses 44 is equal to the interval P between the recesses 42, and each protrusion 45 is located in the middle of the adjacent recess 42. Note that the number (8) of the recesses 42 shown in FIG. 2 is merely an example.

  A barcode cd1 is affixed to the side surface 43 in the longitudinal direction and the side surface 46 in the short direction of the rack 41 (also affixed to the side surfaces 43 and 46 on the back side, not shown). In the barcode cd1, in addition to the identification information such as the type and ID number of the rack 41, the identification information and analysis information of the sample stored in the sample container 71 held by the rack 41 are encoded in a predetermined format. Information is recorded.

  The sample container 71 includes a large first container 72 accommodated in the recess 42 of the rack 41 and a small second container 73 placed on the opening of the first container 72. The first container 72 is made of plastic or glass. The second container 73 is formed of plastic, and is used when accommodating a sample when dispensing a small amount of sample. On the side surface of the first container 72, a bar in which identification information such as the ID number of the sample accommodated in the first container 72 and / or the second container 73 and analysis information such as analysis items is encoded and recorded in a predetermined format. The code cd2 is affixed. In this sense, when samples are stored in both the first container 72 and the second container 73 that overlap, they must be the same sample. The first container 72 and the second container 73 can be used alone by being mounted on the rack 41.

  Similarly to the sample container 71, the reagent container 81 is also affixed with a barcode (not shown) in which identification information for identifying the reagent accommodated therein is encoded and recorded. For this reason, a barcode reading unit CR2 for reading a barcode attached to the reagent container 81 is also provided in the vicinity of the reagent container holding unit 3.

  Although the case where predetermined information is recorded on the bar code has been described here, the predetermined information is recorded on another information code recording medium (for example, a two-dimensional code) and pasted on the corresponding rack or container. Also good. In this case, it goes without saying that an information code reading unit corresponding to the information code recording medium is provided.

  Next, the configuration of the sampler 2 as the rack transport mechanism according to the present embodiment will be described in detail. The sampler 2 is recovered by the linear transport lane 21 that transports the rack 41, the supply unit 22 that supplies the rack 41 to the transport lane 21, the recovery unit 23 that recovers the rack 41 from the transport lane 21, and the recovery unit 23. The rack 41 is provided in the vicinity of the outlet of the storage unit 24 for storing the rack 41, the distribution unit 25 for distributing the rack 41 from the recovery unit 23 to the supply unit 22 and the storage unit 24, and the outlet of the supply unit 22 to the transport lane 21. And a barcode reader CR1 that reads the barcodes cd1 and cd2 attached to the sample container 71, respectively. In addition, a pair of static elimination brushes 26 and 27 formed by bundling fine bristle stainless steel in a brush shape are provided at a predetermined position in front of the sample dispensing position S in the rack transfer direction of the transport lane 21. One end sides of the static eliminating brushes 26 and 27 are respectively held by holding members 28 and 29 made of metal such as aluminum.

FIG. 3 is a diagram showing a configuration of a main part of the transport lane 21, and is a partially enlarged view in the vicinity of the static elimination brushes 26 and 27. 4 is a partial arrow view in the direction of arrow A in FIG. In FIG. 4, the barcodes cd1 and cd2 are omitted. The interval at which the neutralizing brushes 26 and 27 are disposed along the longitudinal direction of the transport lane 21 is ½ of the interval P between the concave portions 42 of the rack 41. Further, the lengths of the neutralizing brushes 26 and 27 extending from the holding members 28 and 29 are equal to L and reach the center of the conveyance lane 21 in the width direction. In other words, the static elimination brushes 26 and 27 extend along the rack transfer path of the transport lane 21 to a plane passing through the center in the width direction of the rack transfer path. Further, the highest point h _{1 in} the vertical direction (h-axis direction) of the static elimination brushes 26 and 27 is higher than the highest point h _{2 in} the vertical direction of the sample container 71 mounted on the rack 41.

  FIG. 5 is a diagram illustrating a configuration of a main part of the rack transport mechanism according to the present embodiment, and is a diagram illustrating a detailed configuration of the transport lane 21 and its surroundings. The transfer lane 21 is a series of transfer belts 211 (transfer means) for mounting and transferring the rack 41, a motor 212 for driving the transfer belt 211, guidance of the progress of the rack 41, and from the transfer belt 211 of the rack 41. Guide frames 213 and 214 to prevent the rack 41 from dropping off, and feed units 215 and 216 for advancing the rack 41 on the transfer belt 211 at a predetermined pitch. Among these, a pulley (not shown) is attached to the shaft of the motor 212, and the driving force is transmitted to the transfer belt 211 by the attached pulley.

  A holding member 28 that holds the static elimination brush 26 is attached to the guide frame 213, while a holding member 29 that holds the static elimination brush 27 is attached to the guide frame 214. As with the holding members 28 and 29, the guide frames 213 and 214 are made of metal such as aluminum. Among these, the guide frame 213 has openings 213 a and 213 b for bringing the tips of the claw members and the step detection levers (described later) provided in the feed units 215 and 216 into contact with the rack 41. The holding members 28 and 29 are grounded via guide frames 213 and 214, respectively.

  The feed unit 215 includes a pair of claw members 251a and 251b that swing within a plane orthogonal to the traveling direction of the transfer belt 211, a claw support shaft 252 that supports the claw members 251a and 251b, and claw members 251a and 251b. The cams 253a and 253b to be swung, the cam shaft 254 that rotatably supports the cams 253a and 253b, the rotation sensor 255 that detects the rotational position of the cam shaft 254, and the groove 44 and the protrusion of the rack 41 at the front end. And a step detection lever 256 that can come into contact with the portion 45 and detects a step state of the rack 41 in accordance with advancing and retreating of the tip portion thereof. Further, the feed unit 215 includes a rotation motor that rotates the camshaft 254 and a position sensor that detects the position of the step detection lever 256 (both not shown).

  The claw members 251a and 251b swing while having a predetermined phase difference (for example, 60 degrees) to position the rack 41. Therefore, the cams 253a and 253b are arranged with respect to the cam shaft 254 so as to realize the phase difference. The step detection lever 256 slides along the longitudinal direction of the rack 41 through the groove 43 provided on the side surface 43 of the rack 41 via the opening 213a. It is the most retracted position.

  In the feed unit 215 having the above configuration, the stepping state of the rack 41 is detected by using the rotation position of the cam shaft 254 by the rotation sensor 255 and the advance / retreat position of the step detection lever 256 with respect to the rack 41 by the position sensor. .

  The motor 212 for driving the transfer belt 211 and the motor for rotating the cam shaft 254 are driven synchronously under the control of the control unit 14 included in the data processing unit 102, and the rotation sensor 255, position sensor, etc. Based on the detection result, the operation is intermittently performed for each pitch.

  The feed unit 216 has the same configuration as the feed unit 215. That is, the feed unit 216 includes claw members 261a and 261b, claw support shafts 262, cams 263a and 263b, cam shaft 264, rotation sensor 265, step detection lever 266, motor for rotating the cam shaft 264 (not shown), As well as a position sensor (not shown). The claw members 261a and 261b and the step detection lever 266 can be brought into contact with the groove portion 44 and the protrusion 45 of the rack 41 through the opening 213b of the guide frame 213, and the claw members 251a and 251b and the step detection lever, respectively. It operates in the same way as 256. The motor for rotating the cam shaft 264 is controlled by the control unit 14 so as to operate in synchronization with the motor for rotating the motor 212 and the cam shaft 254.

  By providing the two feed units 215 and 216 in the transport lane 21 in this way, even if the lane length of the transport lane 21 is long, the progress of the rack 41 can be transferred between the feed units in the middle of the transport lane 21. Thus, the rack 41 can be advanced appropriately.

  In the sampler 2 having the above configuration, the sample container 71 mounted on the rack 42 comes into contact with the static eliminating brushes 26 and 27 before reaching the sample dispensing position S. FIG. 6 is a diagram illustrating a state in which the sample container 71 is in contact with the static elimination brushes 26 and 27. As described above, the interval between the static elimination brushes 26 and 27 in the rack transfer direction is ½ of the interval between the recesses 42 (interval at which the sample container 71 is mounted) P, and the extension length of the static elimination brushes 26 and 27. Are equal to L and reach the center of the transfer belt 211 in the width direction. Accordingly, the static elimination brushes 26 and 27 can simultaneously contact the same sample container 71. In this case, the static eliminating brush can be continuously contacted for a longer time than when a single static eliminating brush is used as in the prior art, and the static electricity charged in the sample container 71 can be reliably removed. In addition, even if they do not contact at the same time, the static elimination is performed twice, so that static electricity can be removed more reliably than when a single static elimination brush is used.

As is clear from FIG. 4, most of the second container 73 is accommodated in the first container 72, so that the second container 73 has few portions that are in direct contact with the static elimination brushes 26 and 27. In the present embodiment, since the static elimination brushes 26 and 27 have reached a position higher than the highest point h _{2 in} the vertical direction of the sample container 71, the static elimination brushes 26 and 27 are reliably located near the opening of the second container 73. Can be contacted. Therefore, even when the second container 73 is placed on the first container 72 and used, the static electricity charged in the second container 73 can be reliably removed.

  By the way, in the present embodiment, the interval between the neutralizing brushes 26 and 27 in the rack transfer direction is P / 2, and the extension length (L) of each neutralizing brush is the length that reaches the center of the conveyance lane 21 in the width direction. Therefore, even if the static elimination brush 26 comes into contact with the sample container 71 and curves in the direction approaching the static elimination brush 27, the static elimination brush 26 and the static elimination brush 27 do not contact each other. For this reason, even if the sample inside the sample container 71 should adhere to one static elimination brush, it can avoid that the adhering sample adheres to the other static elimination brush, for example, both brushes pass through a sample. Can be prevented.

  According to the embodiment of the present invention described above, a transfer belt that is composed of a series of members and that mounts and transfers a rack on which a plurality of sample containers are mounted, and a sample that is mounted on the rack to which the transfer belt is transferred. The container can be contacted, and extends in a direction perpendicular to the direction of rack transfer of the transfer belt and the normal direction of the rack mounting surface of the transfer belt and opposite to each other to remove static electricity charged in the sample container. A pair of charge removal brushes, and the distance between the pair of charge removal brushes in the rack transfer direction of the transfer belt is set to ½ of the distance at which the rack mounts the sample container, thereby depending on the surrounding environment and the type of container. In addition, it is possible to provide a rack transport mechanism that can reliably remove static electricity charged in the container, and an automatic analyzer including the rack transport mechanism.

  In addition, according to the present embodiment, the pair of static eliminating brushes reach a position higher than the highest point in the vertical direction of the sample container mounted on the rack to which the transfer belt transfers, so that the large first container Even when the sample container is configured by mounting a small second container, the charge charged in the second container can be reliably removed.

  Furthermore, according to the present embodiment, the distance between the pair of static elimination brushes in the rack transfer direction of the transfer belt is set to ½ of the interval at which the rack mounts the sample container, and the length that each static elimination brush extends. The length of the surface of the transfer belt perpendicular to the rack mounting surface reaches the surface passing through the center of the width direction of the rack transfer path along the rack transfer path of the transfer belt. Thus, the rack is not moved relative to the transfer belt. As a result, it is possible to prevent rack jam from occurring on the transport lane.

  Further, in the present embodiment, since the configuration excluding the neutralizing brush is the same as that of the conventional rack transport mechanism, it can be realized easily and at low cost.

  The best mode for carrying out the present invention has been described in detail so far, but the present invention should not be limited only by the above-described embodiment. For example, a series of members other than the above-described transfer belt can be used as the transfer means. In that case, the transfer path of the transfer means does not need to be a straight line, and may be a curved line.

  Further, the feed unit of the transport lane may have any configuration as long as the rack placed on the transfer means can be advanced at a predetermined pitch.

  Furthermore, the automatic analyzer according to the present invention can be applied not only to biochemical analysis but also to a rack transport mechanism of an automatic analyzer that performs immunological analysis or genetic analysis. It is.

  Thus, the present invention can include various embodiments and the like not described herein, and various design changes and the like can be made without departing from the technical idea specified by the claims. It is possible to apply.

It is a figure which shows typically the structure of the automatic analyzer principal part which concerns on one embodiment of this invention. It is a figure which shows the structure of a rack and a sample container. It is the elements on larger scale near the static elimination brush of the rack conveyance mechanism which concerns on one embodiment of this invention. FIG. 4 is a partial arrow view in the direction of arrow A in FIG. 3. It is a figure which shows the structure of the principal part of the rack conveyance mechanism which concerns on one embodiment of this invention. It is a figure which shows the state which the sample container is contacting with a pair of static elimination brush.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Automatic analyzer 2 Sampler 3 Reagent container holding part 4 Reaction container holding part 5 Sample dispensing part 6 Reagent dispensing part 7 Agitating part 8 Photometric part 8a Light source 8b Spectroscopic optical system 8c Light receiving element 9 Washing part 10 Input part 11 Output part DESCRIPTION OF SYMBOLS 12 Calculation part 13 Memory | storage part 14 Control part 21 Transport lane 22 Supply part 23 Collecting part 24 Storage part 25 Storage part 26, 27 Static elimination brush 28, 29 Holding member 41 Rack 42 Recessed part 43, 46 Side surface 44 Groove part 45 Protrusion part 51, 61 Probe 52, 62 Arm 53, 63 Probe cleaning unit 71 Sample container 72 First container 73 Second container 81 Reagent container 91 Reaction container 101 Measurement unit 102 Data processing unit 211 Transfer belt 212 Motor 213, 214 Guide frame 213a, 213b Opening 215, 216 Feed unit 251a , 251b, 261a, 261b Claw member 252, 262 Claw support shaft 253a, 253b, 263a, 263b Cam 254, 264 Cam shaft 255, 265 Rotation sensor 256, 266 Step detection lever cd1, cd2 Bar code CR1, CR2 Bar code reading Part S Sample dispensing position

Claims (4)

A transfer means comprising a series of members, for mounting and transferring a rack on which a plurality of containers are mounted;
It is possible to contact the container mounted on the rack to be transferred by the transfer means, and opposite to each other in a direction perpendicular to the rack transfer direction of the transfer means and the normal direction of the rack mounting surface of the transfer means. A pair of static elimination brushes extending in each direction to remove static electricity charged in the container;
With
An interval between the pair of static eliminating brushes in the rack transfer direction of the transfer means is a half of an interval at which the rack mounts the container.   2. The rack transport mechanism according to claim 1, wherein the pair of static eliminating brushes reach a position higher than a highest point in a vertical direction of the container mounted on the rack transferred by the transfer unit.   The pair of static eliminating brushes extends along a transfer path of the transfer means to a plane passing through the center in the width direction of the rack transfer path, among the surfaces of the transfer means orthogonal to the placement surface of the rack. The rack transport mechanism according to claim 1 or 2, wherein An automatic analyzer that analyzes components of the sample by reacting the sample with a reagent,
The rack transport mechanism according to any one of claims 1 to 3,
A sample dispensing means for dispensing a sample contained in the container mounted on the rack, which is located behind the pair of static eliminating brushes along the rack transfer direction of the transfer means and is transferred by the transfer means; ,
An automatic analyzer characterized by comprising:

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