JP2008268059A - Sample holder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sample holder that can be used for an analysis in which measuring light is transmitted and that makes it possible to prevent a sample from deforming or staining. <P>SOLUTION: A sample holder (1) is constituted so as to include: a sample-support member (2), provided with a plurality of suction holes (2a), that extend from a front-surface side to a back-surface side of the sample-support member (2) and made of optically transmitting material, whose front surface is a sample-support surface (2b) on which a sample (S) is supported; and a reduced-pressure space forming member (4), having a reduced-pressure space (K) to which the plurality of suction holes (2) are connected and of which air is exhausted so that the reduced-pressure space (K) is under a negative pressure, with respect to the front surface side of the sample-support member (2) which supports the sample-support member (2). <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

The present invention relates to a sample holder for holding a sample to which measurement light such as infrared light is incident, and more particularly to the sample holder capable of measuring the measurement light through the sample and the sample holder.
The sample holder of the present invention is used by being detachably mounted in the optical path of measurement light used for microscopic analysis or spectroscopic analysis.

Conventionally, the following techniques (J01) and (J02) are known as sample holders used when analyzing a sample.
(J01) Technology described in Patent Document 1 (Japanese Patent Laid-Open No. 9-61319) In Patent Document 1, a sample is supported on the surface in order to measure optical characteristics of a thin sample surface on a plane such as paper or cloth. The sample is meshed using a sample stage having a mesh support (12) such as a metal mesh and a sample stand (11) on which the mesh support (12) is supported and the inside is evacuated. A technique for adsorbing and holding the support (12) by a pressure difference is described.

(J02) Technology described in Patent Document 2 (Japanese Patent Application Laid-Open No. 9-15213) Patent Document 2 discloses an optical absorption measurement device that measures an acoustic signal generated by a volume change of a sample caused by the sample absorbing light. As for the sample holder, the inside of the pipe-shaped sample holder (1) is evacuated and decompressed, and the disc-shaped sample (7) is sucked through the elastic support member (2) such as an O-ring. The technology to support is described. Further, in Patent Document 2, in order to reduce the influence of noise (noise) in acoustic detection, nothing is arranged in the optical path of incident light (6) after passing through the sample (7), It is also described that an elastic body (9) that hardly transmits sound or a synthetic quartz glass (34) that hardly absorbs light (is easily transmitted) is also described.

Japanese Patent Laid-Open No. 9-61319 (paragraph number “0006”, FIGS. 1 and 2) Japanese Patent Laid-Open No. 9-15213 (paragraph numbers “0019” to “0027”, “0041”, FIG. 1, FIG. 2, FIG. 4, FIG. 7)

In the prior art (J01), when a metal body such as a wire mesh is used, incident light may be blocked by the wire mesh. Therefore, the technique described in the prior art (J01) can be used for analysis using reflected light on the sample surface, but cannot be used because sufficient light cannot be obtained for analysis using transmitted light. .
In the prior art (J02), in the configuration in which the pipe-shaped sample holder is supported via an elastic support member such as an O-ring, the central portion is sucked and the peripheral portion is supported by the O-ring, and thus sucked. There is a possibility that the center portion is curved and the sample is deformed. Also, it cannot be used when the sample is small.

  In an analytical apparatus using transmitted light such as conventional FT-IR (Fourier Transform Infrared Spectroscopy), the sample is held on a sample holder with double-sided tape or gum, In general, it is fixed to a sample holder by being sandwiched by a leaf spring or the like. However, when a double-sided tape or the like is used, there is a problem that the adhesive adheres to the sample or the sample holder and the sample or the sample holder becomes dirty. In addition, there is a problem that the use of screws or the like may cause deformation of the sample.

  In view of the above-described circumstances, it is a technical object of the present invention to provide a sample holder that can perform analysis that allows measurement light to pass therethrough and can prevent deformation and contamination of the sample.

  Next, the configuration of the present invention devised to solve the above problems will be described. The configuration of the embodiment is used in order to facilitate correspondence with the configuration elements of the embodiments described later. The element code is enclosed in parentheses. The reason why the present invention is described in correspondence with the reference numerals of the embodiments described later is to facilitate the understanding of the present invention, and not to limit the scope of the present invention to the embodiments.

(Invention)
In order to solve the technical problem, the sample holder (1, 1 ', 1 ", 41) according to claim 1,
A sample support member made of an optically transmissive material, in which a sample (S, S1, S2, S3) is supported on the surface sample support surface (2b) and a plurality of suction holes (2a) extending from the front surface side to the back surface side are formed. 2, 2 ', 2 ")
The plurality of suction holes (2a) are connected and have a decompression space (K) decompressed with respect to the surface side of the sample support member (2, 2 ′, 2 ″), and the sample support member (2, 2 ', 2 ") and a decompression space forming member (4, 11, 11");
It is provided with.

(Operation of the present invention)
The sample holder (1, 1 ', 1 ", 41) according to claim 1 having the above-described structural requirements is a sample support surface (2) of the surface of the sample support member (2, 2', 2") made of an optical transmission material. 2b) supports samples (S, S1, S2, S3). The sample support member (2, 2 ', 2 ") has a plurality of suction holes (2a) extending from the front surface side to the back surface side. The sample support member (2, 2', 2") is formed. The decompression space forming member (4, 11, 11 ″) to be supported has a decompression space (K). The decompression space (K) is connected to the plurality of suction holes (2a) and the sample support member. The pressure is reduced with respect to the surface side of (2, 2 ′, 2 ″).
Therefore, the sample (S, S1, S2, S3) supported by the sample support surface (2b) is sucked by the suction hole (2a) connected to the decompressed decompression space (K), and the sample support surface (2b) ). As a result, the sample (S, S1, S2, S3) is held on the surface by the sample support surface (2b) and is adsorbed by the pressure difference, so that the deformation of the sample (S, S1, S2, S3) and the adhesive Contamination due to the use of can be prevented. Further, since the sample support member (2, 2 ′, 2 ″) constituting the sample support surface (2b) is made of an optical transmission material, the loss of transmitted light is low and analysis using the transmitted light is performed. Can do.

The invention according to claim 2 is the sample holder (1, 41) according to claim 1,
The reduced-pressure space forming member (4) made of a transmission material that transmits measurement light (L) for measuring the sample (S, S1, S2, S3),
It is provided with.
In the second aspect of the invention having the above-described structural requirements, the reduced-pressure space forming member (4) is made of a transmissive material that transmits measurement light (L) for measuring the sample (S, S1, S2, S3). The decompression space forming member (4) can be disposed on the optical path of the measurement light (L), and analysis can be performed using the measurement light (L) transmitted through the decompression space forming member (4).

The invention described in claim 3 is the sample holder (1 ′, 1 ″) described in claim 1,
A bottom member (12, 12 ") made of an optically transparent material and disposed opposite to and spaced from the sample support member (2, 2 ', 2"); and the sample support member (2, 2', 2 ") A decompression space forming member (11, 11 ″) having a wall member (13, 13 ″) disposed between the bottom member (12, 12 ″) and the bottom member (12, 12 ″). ”), The wall member (13, 13 ″) and the sample support member (2, 2 ′, 2 ″). 11, 11 ″),
It is provided with.

  According to the third aspect of the present invention, the bottom member (12, 12 ″) disposed opposite to the sample support member (2, 2 ′, 2 ″) is made of an optical transmission material. Has been. The wall member (13, 13 ″) is disposed between the sample support member (2, 2 ′, 2 ″) and the bottom member (12, 12 ″). Therefore, the bottom member (12, 12). Since "" is made of an optical transmission material, the transmitted light that has passed through the sample support member (2, 2 ', 2 ") also passes through the bottom member (12, 12"). Can be done. Further, since the bottom member (12, 12 ") and the wall member (13, 13") can be separately manufactured, the manufacturing and assembling can be facilitated. Further, the wall member (13, 13 ") is made of an optical transmission material. Therefore, the cost can be reduced.

The invention according to claim 4 is the sample holder (1 ', 41) according to any one of claims 1 to 3,
The sample (S, S1, S2, S3) smaller than the sample support surface (2b);
A sample support surface in which sample storage holes (21a, 21b, 21c, 21d) for storing the samples (S, S1, S2, S3) are formed and has the same shape as the sample support surface (2b) or a larger outer shape. A cover (21, 21 '),
It is provided with.

  According to the fourth aspect of the present invention having the above-described structural requirements, the sample receiving holes (21a, 21b, 21c, 21d) of the sample support surface cover (21, 21 ') having the same shape as the sample support surface (2b). Accommodates samples (S, S1, S2, S3) smaller than the sample support surface (2b). Therefore, since the sample support surface (2b) is covered by the sample (S, S1, S2, S3) and the sample support surface cover (21, 21 '), the sample support surface cover (21, 21') is not provided. Compared to the case, the adsorption force of the sample (S, S1, S2, S3) can be ensured and can be securely held in the sample holder (1 ', 41), and the suction hole (2a) is clogged with dust or dirt. Can also be prevented.

The invention according to claim 5 is the sample holder (1 ', 41) according to claim 4,
The sample support surface cover (21 ') having a plurality of sample receiving holes (21a, 21b, 21c, 21d) formed corresponding to the sizes of the plurality of samples (S, S1, S2, S3);
It is provided with.
In the invention according to claim 5 having the above-described structural requirements, a plurality of samples formed on the sample support surface cover (21 ') corresponding to the sizes of the plurality of samples (S, S1, S2, S3). Since the accommodation holes (21a, 21b, 21c, 21d) are provided, one sample support surface cover (21 ') can correspond to a plurality of sizes of samples (S, S1, S2, S3). .

A sixth aspect of the present invention is the sample holder (1, 1 ″, 41) according to any one of the first to fifth aspects,
An optical transmission plate support member (3, 3 ″) for supporting the sample support member (2, 2 ′, 2 ″) made of an optical transmission material;
The decompression space forming member (4, 11 ") for supporting the sample support member (2, 2 ', 2") via the optical transmission plate support member (3, 3 ");
It is provided with.
The optical transmission plate support member (3, 3 ″) supports the sample support member (2, 2 ′, 2 ″) made of an optical transmission material. The decompression space forming member (4, 11 ″) supports the sample support member (2, 2 ′, 2 ″) via the optical transmission plate support member (3, 3 ″). , S1, S2, S3) only the part supporting the optical transmission material can be used as the sample supporting member (2, 2 ', 2 "), and the sample holder (1, 1", 41) can have any shape. be able to.

The invention according to claim 7 is the sample holder (1 ″) according to claim 6,
The optical transmission plate support member (3 ″) for supporting a plurality of the sample support members (2, 2 ′, 2 ″);
It is provided with.
According to the seventh aspect of the invention having the above-described structural requirements, the optical transmission plate support member (3 ″) supports the plurality of sample support members (2, 2 ′, 2 ″). (S1, S2, S3) can be held, and a plurality of samples (S1, S2, S3) can be analyzed at once.

  The above-described present invention can provide a sample holder that can be analyzed by transmitting measurement light and can prevent deformation and contamination of the sample.

Next, embodiments of the present invention will be described with reference to the drawings. However, the present invention is not limited to the following embodiments.
In order to facilitate understanding of the following description, in the drawings, the front-rear direction is the X-axis direction, the left-right direction is the Y-axis direction, the up-down direction is the Z-axis direction, and arrows X, -X, Y, -Y, The direction indicated by Z and -Z or the indicated side is defined as front, rear, right, left, upper, lower, or front, rear, right, left, upper, and lower, respectively.
In the figure, “•” in “○” means an arrow heading from the back of the page to the front, and “×” in “○” is the front of the page. It means an arrow pointing from the back to the back.
In the following description using the drawings, illustrations other than members necessary for the description are omitted as appropriate for easy understanding.

1A and 1B are explanatory views of a sample holder according to a first embodiment of the present invention. FIG. 1A is a plan view in a state where the sample is supported, and FIG. 1B is a front view in a state where the sample is supported.
2A and 2B are explanatory views of the sample holder according to the first embodiment of the present invention. FIG. 2A is a side sectional view of the sample holder in a state where the sample is not supported. FIG. FIG. 2C is a plan view of the sample support member and the reduced pressure space forming member in a state where the space forming member is separated.
1 and 2, a sample holder 1 of Example 1 that can be used in FT-IR using infrared light as measurement light has a sample support member 2 on which a sample S is supported. In Example 1, the sample support member 2 is constituted by a disk-shaped optical transmission plate. The sample support member 2 is made of Ge (germanium) as an example of an optical transmission material, and a plurality of fine suction holes 2a extending from the front surface side to the back surface side are formed. The diameter of the sample support surface 2b on the surface of the sample support member 2 is preferably 13 mm in accordance with the size of the sample S that is widely used in general. Each suction hole 2a can be deformed according to the size and weight of the sample S to be supported and the exhaust performance of the exhaust device V, but can have a diameter of 5 μm to 100 μm, preferably 20 μm to 50 μm. . Furthermore, as the optical transmission material, it is possible to select an optical transmission material corresponding to transmission characteristics with respect to transmitted light having a wavelength to be detected and capable of forming the fine suction hole 2a. For example, glass, Ge, sapphire, CaF ₂ , BaF ₂ , MgF ₂ , LiF, KBr, KCl, NaCl, MgO, quartz, silicon, ZnSe, ZnS, GaAs, calcite (CaCO ₃ ) and the like.

The sample support member 2 is fixedly supported by bonding or the like at the center of a metal plate-like optical transmission plate support member 3. On the back side of the optical transmission plate support member 3, a decompression space forming member 4 of the same optical transmission plate as the support member 2 is bonded. In FIG. 2C, the decompression space forming member 4 is formed with a recess 4a formed in the center corresponding to the sample support member 2 and an exhaust passage 4b extending rearward from the rear end of the recess 4a. Yes. An exhaust pipe connecting portion 6 is fixedly supported at the rear end of the exhaust path 4b. The exhaust pipe connection portion 6 is connected to an exhaust device V (see FIG. 1A) via an exhaust pipe (not shown). Therefore, as shown in FIG. 2A, a decompression space K is formed by the space surrounded by the recess 4a and the back surface of the sample support member 2. Then, the suction hole 2a of the sample support member 2 is connected to the decompression space K, and the inside of the decompression space K is decompressed with respect to the surface side of the sample support member 2 by being exhausted from the exhaust passage 4b. .
The sample holder 1 of Example 1 is comprised by the member etc. which attached | subjected the said codes | symbols 2-6.

(Operation of Example 1)
In the sample holder 1 of Example 1 having the above-described configuration, the sample S is discharged by the pressure difference by evacuating the decompression space K by the exhaust device V while the sample S is supported on the surface of the sample support member 2. The surface of the sample support member 2 is held in a sucked state. In this state, when the measurement light L (see the alternate long and short dash line in FIG. 1B) is incident on the sample S, a specific wavelength is absorbed and transmitted according to the characteristics of the sample S. At this time, the measurement light L passes through the sample support member 2 made of Ge, the decompression space K, and the decompression space forming member 4 made of a material transparent to the measurement light (optical transmission material).
Therefore, since the measurement light L passes through the optical transmission material having high transparency and low optical loss and the space K, the transmitted light is used (for example, spectrum measurement is performed by spectroscopy). S can be analyzed with high accuracy. Moreover, in the sample holder 1 of Example 1, it can prevent that the sample S and the sample holder 1 become dirty with an adhesive compared with the conventional case which adhere | attaches with a double-sided tape etc. Further, the sample S can be easily removed from the sample holder 1 by ending the exhaust by the exhaust device V or by sliding the sample S in the surface direction of the sample support member 2 and moving it to the optical transmission plate support member 3 side. it can. Further, in the sample holder 1 of Example 1, the entire surface on the back side of the sample S is supported by the sample support member 2 and is sucked through the suction holes 2a formed discretely in the sample support member 2. The sample S is not easily deformed such as being bent, the sample S can be prevented from being damaged, and can be reused after analysis. Moreover, since the shape and material of the optical transmission plate support member 3 which supports the sample support member 2 can be changed arbitrarily, it can be set as the arbitrary shape which can be mounted | worn with the analytical instrument used.

FIG. 3 is an explanatory view of a sample holder according to a second embodiment of the present invention, FIG. 3A is a perspective explanatory view, and FIG. 3B is an explanatory view in an exploded state.
In the description of the second embodiment, components corresponding to those of the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.
The second embodiment is different from the first embodiment in the following points, but is configured in the same manner as the first embodiment in other points.

In FIG. 3, the sample holder 1 ′ of the second embodiment is different from the sample holder 1 of the first embodiment in that the optical transmission plate support member 3 is omitted, and a reduced pressure space is provided on the back side of the disk-shaped sample support member 2. The forming member 11 is supported. The decompression space forming member 11 includes a bottom member 12 disposed so as to face and separate from the sample support member 2, and a cylindrical pipe-shaped wall member 13 disposed between the bottom member 12 and the sample support member 2. is doing. Similar to the sample support member 2, the bottom member 12 is made of an optically transparent material and is formed of a disk-like member. Unlike the sample support member 2, the suction hole 2 a is not formed. Further, an exhaust pipe connection portion 6 connected to the exhaust device V is supported on the side surface of the wall member 13.
Therefore, the space surrounded by the sample support member 2, the wall member 13, and the bottom member 12 forms the decompression space K of the second embodiment, and the decompression space K is an exhaust device connected to the exhaust pipe connection portion 6. V is exhausted.

(Operation of Example 2)
In the sample holder 1 ′ of the second embodiment having the above-described configuration, the sample S is adsorbed and held on the sample support surface 2b of the sample support member 2 when the decompression space K is exhausted and decompressed, and the measurement light L is After passing through the sample S and the sample support member 2, they pass through the decompression space K and the bottom member 12 made of an optical transmission material. Therefore, the sample holder 1 ′ of the second embodiment has the same function and effect as the sample holder 1 of the first embodiment.
Further, in the sample holder 1 ′ of the second embodiment, the bottom member 12 and the wall member 13 are constituted by different members, so that each member can be easily processed and assembled. Further, in the sample holder 1 ′ according to the second embodiment, the measurement light L does not pass through the wall member 13, so that the wall member 13 is not limited to the optical transmission material, and any material can be used, thereby reducing the cost. You can also plan.

FIG. 4 is an explanatory diagram of a sample holder according to the third embodiment of the present invention, and corresponds to FIG. 3B according to the second embodiment.
In the description of the third embodiment, components corresponding to those of the first and second embodiments are denoted by the same reference numerals, and detailed description thereof is omitted.
The third embodiment is different from the first and second embodiments in the following points, but is configured in the same manner as the first and second embodiments in other points.
In FIG. 4, in the sample holder 1 ′ of Example 3, when the sample S smaller than the sample support member 2 is analyzed, the sample support surface cover 21 supports the sample support surface cover 21 on the sample support surface 2 b. The The sample support surface cover 21 has an outer diameter that is the same as that of the sample support member 2, and a sample accommodation hole 21 a corresponding to the outer diameter of the sample S is formed at the center.

(Operation of Example 3)
In the sample holder 1 ′ according to the third embodiment having the above-described configuration requirements, when the sample S smaller than the surface area of the sample support surface 2 b is analyzed, the entire surface of the sample support surface 2 b is covered by the sample support surface cover 21 and the sample S. Covered. When the sample support surface cover 21 is not provided, suction from the suction hole 2a in a portion not covered by the sample S to the decompression space K side is dominant, and the suction of the sample S may be weakened. Although there is a possibility that dust or dirt etc. is clogged in the suction hole 2a in the uncovered portion, the sample holder 1 'in the third embodiment provides the sample support surface cover 21 so that the sample S smaller than the sample support surface 2b is provided. Even in the case of using, the suction can be reliably performed and the suction hole 2a can be prevented from being clogged. Furthermore, since measurement light that does not pass through the sample can be blocked, measurement with high accuracy is possible.

FIG. 5 is a perspective explanatory view of a sample holder according to a fourth embodiment of the present invention.
In the description of the fourth embodiment, components corresponding to the components of the first to third embodiments are denoted by the same reference numerals, and detailed description thereof is omitted.
The fourth embodiment is different from the first to third embodiments in the following points, but is configured in the same manner as the first to third embodiments in other points.
In FIG. 5, the sample holder 1 ″ of Example 4 is a decompression space forming member 11 having a plate-like optical transmission plate support member 3 ″, a square tube-like wall member 13 ″, and a plate-like bottom member 12 ″. The optical transmission plate support member 3 "has three mounting ports (mounting parts) 3a, 3b, 3c corresponding to the outer diameter of the sample support member 2. Steps are formed in the mounting ports 3a to 3c, and the sample support member 2 is detachably supported by the steps. The mounting ports 3a to 3c are provided with a sample support member 2 for a large sample, a sample support member 2 'for a medium sample, a sample support member 2 "for a small sample, or a cover 31 for closing the mounting port. Either one is configured to be mountable.

  The sample support member 2 for large size samples has suction holes 2a formed on the entire surface for adsorbing the large size sample S1, and the sample support member 2 'for medium size samples is a medium size sample. In order to adsorb S2, the suction hole 2a is formed only in a region corresponding to the size of the medium-sized sample S2. Similarly, the sample support member 2 ″ for a small-size sample has a suction hole 2a formed only in a region corresponding to the size of the small-size sample S3 in order to adsorb the small-size sample S3, and the mounting opening is blocked. The mounting hole cover 31 for use has no suction hole 2a.

(Operation of Example 4)
In the sample holder 1 ″ according to the fourth embodiment having the above-described constituent elements, the sample S can be adsorbed and held as in the first embodiment, and the sample supporting members 2, 2 ′, 2 are attached to the optical transmission plate supporting member 3 ″. Since a maximum of 3 "can be mounted, a plurality of samples S1 to S3 can be prepared in advance and measured in order. Also, the sample support members 2 to 2" are exchanged according to the size of the samples S1 to S3. Therefore, as in the case of the third embodiment, the suction hole 2a can be prevented from being clogged while being reliably sucked and held. Further, for example, when analyzing one or two samples S, the decompression space K is kept airtight by attaching the attachment port cover 31 to the attachment ports 3a to 3c to which the sample S is not attached. Can do. Note that by preparing a plurality of sample support members 2 to 2 ″, all three samples S of the same size can be analyzed.

FIG. 6 is an explanatory view of a sample holder according to a fifth embodiment of the present invention, FIG. 6A is a plan view of a sample support surface cover, and FIG. 6B is an explanatory view of a state in which the sample support surface cover is used.
In the description of the fifth embodiment, components corresponding to those of the first to fourth embodiments are denoted by the same reference numerals, and detailed description thereof is omitted.
The fifth embodiment is different from the first to fourth embodiments in the following points, but is configured in the same manner as the first to fourth embodiments in other points.
In FIG. 6, the sample support surface cover 21 ′ of Example 5 has four sample storage ports 21 a to 21 d corresponding to the size of the sample S to be mounted.

(Operation of Example 5)
In the sample holder 1 'of the fifth embodiment having the above-described configuration, when the sample S having the same size as the sample support member 2 is analyzed, the sample support 1 can be adsorbed and held without using the sample support surface cover 21'. When analyzing a sample S having a size smaller than 2, the sample support surface cover 21 'is placed in the surface direction of the sample support member 2 in accordance with the size of the sample S to be analyzed, as shown in FIG. 6B. By sliding, the entire surface of the sample support surface 2b can be covered with the sample S and the sample support surface cover 21 '. As a result, the sample holder 1 ′ of Example 5 can be reliably adsorbed even when the sample S smaller than the sample support surface 2 b is used, as in Example 3, and the suction hole 2 a may be clogged. Can be prevented. Further, it is not necessary to prepare a plurality of sample support surface covers according to the size of the sample S, and a single sample support surface cover 21 ′ can be used to support a plurality of sample S sizes.

FIG. 7 is an explanatory view of a sample holder of Example 6 of the present invention, FIG. 7A is a plan view of the sample holder with a sample support surface cover attached, and FIG. 7B is a side view of FIG. 7A.
In the description of the sixth embodiment, components corresponding to those of the first to fifth embodiments are denoted by the same reference numerals, and detailed description thereof is omitted.
Example 6 is different from Examples 1 to 5 in the following points, but is configured in the same manner as Examples 1 to 5 in other points.
In FIG. 7, in the sample holder 41 of the sixth embodiment, in the sample holder 1 of the first embodiment, two pairs of cover guide members 42 are fixedly supported on the upper surface of the optical transmission plate support member 3 with the sample support member 2 interposed therebetween. ing. Between the cover guide members 42, a sample support surface cover 21 'configured in the same manner as in the fifth embodiment is supported so as to be slidable and guided in the left-right direction (Y-axis direction).

(Operation of Example 6)
In the sample holder 41 of Example 6 having the above-described configuration, the sample support holes 21a to 21d corresponding to the size of the sample S are formed in the sample support member 2 by moving the sample support surface cover 21 'along the guide member 42. It can be easily moved to the position. In addition, the sample holder 41 of the sixth embodiment has the same effects as the first and fifth embodiments.

(Change example)
As mentioned above, although the Example of this invention was explained in full detail, this invention is not limited to the said Example, A various change is performed within the range of the summary of this invention described in the claim. It is possible. Modification examples (H01) to (H05) of the present invention are exemplified below.
(H01) In the above embodiment, the size of the sample holders 1, 1 ', 1 ", 41 and the sample S, the number of mounting ports 3a to 3c, the number of sample storage ports 21a to 21d, the distribution and the hole diameter of the suction holes 2a Etc. are not limited to the illustrated numerical values and sizes, and can be arbitrarily changed according to the design, purpose of use, and the like.
(H02) In the above embodiment, the sample holders 1, 1 ′, 1 ″, and 41 are exemplified to support the sample support surface 2 b so as to be a horizontal plane. The present invention can also be applied to a case where the analyzer is mounted on the analyzer in an inclined state or mounted in an inclined state.

(H03) In the above embodiment, the sample holders 1, 1 ′, 1 ″, 41 can be suitably used for an analytical instrument that uses the transmitted light of the measuring light L, but an analytical instrument that uses reflected light (for example, It can also be used as a sample holder for analysis instruments such as visible ultraviolet spectroscopy, fluorescence spectroscopy, Raman spectroscopy, etc. That is, as a sample holder common among analysis instruments that perform analysis by a plurality of different methods It is also possible to use it.
(H04) In the above embodiment, for example, it is possible to provide a reflecting mirror in the reduced pressure space, reflect the light transmitted through the sample support member 2 in a predetermined direction, and use it for analysis.
(H05) In the above-described embodiment, the exhaust device V is exhausted to decompress the decompression space K. However, the present invention is not limited to this, and any method capable of decompressing can be employed as long as light transmission is not hindered. is there. For example, it is also possible to employ a so-called aspirator that depressurizes the decompression space K by flowing a fluid (water or the like) at a high speed in a direction perpendicular to the suction hole 2a.

1A and 1B are explanatory views of a sample holder according to a first embodiment of the present invention. FIG. 1A is a plan view in a state where the sample is supported, and FIG. 1B is a front view in a state where the sample is supported. 2A and 2B are explanatory views of the sample holder according to the first embodiment of the present invention. FIG. 2A is a side sectional view of the sample holder in a state where the sample is not supported. FIG. FIG. 2C is a plan view of the sample support member and the reduced pressure space forming member in a state where the space forming member is separated. FIG. 3 is an explanatory view of a sample holder according to a second embodiment of the present invention, FIG. 3A is a perspective explanatory view, and FIG. 3B is an explanatory view in an exploded state. FIG. 4 is an explanatory diagram of a sample holder according to the third embodiment of the present invention, and corresponds to FIG. 3B according to the second embodiment. FIG. 5 is a perspective explanatory view of a sample holder according to a fourth embodiment of the present invention. FIG. 6 is an explanatory view of a sample holder according to a fifth embodiment of the present invention, FIG. 6A is a plan view of a sample support surface cover, and FIG. 6B is an explanatory view of a state in which the sample support surface cover is used. FIG. 7 is an explanatory view of a sample holder of Example 6 of the present invention, FIG. 7A is a plan view of the sample holder with a sample support surface cover attached, and FIG. 7B is a side view of FIG. 7A.

Explanation of symbols

1, 1 ', 1 ", 41 ... sample holder,
2, 2 ', 2 "... sample support member,
2 ... Sample support member for large sample,
2 '... Sample support member for medium size sample,
2 "... sample support member for small size samples,
31 ... Cover for closing the mounting opening,
2a ... suction hole,
2b ... sample support surface,
3, 3 "... optical transmission plate support member,
3a, 3b, 3c ... mounting part,
4, 11, 11 "... decompression space forming member,
4a ... concave portion,
4b ... exhaust path,
6 ... exhaust pipe connection part,
12, 12 "... bottom member,
13, 13 "... wall member,
21, 21 ′ ... sample support surface cover,
21a, 21b, 21c, 21d ... sample accommodation hole,
42 ... cover guide member,
K ... decompression space,
L: Measuring light,
S, S1, S2, S3 ... sample,
V: Exhaust device.

Claims (7)

A sample support member made of an optically transmissive material in which a sample is supported on the surface sample support surface and a plurality of suction holes extending from the front surface side to the back surface side are formed;
A reduced pressure space forming member that has a negative pressure space connected to the plurality of suction holes and reduced in pressure with respect to the surface side of the sample support member, and supports the sample support member;
A sample holder comprising: The reduced-pressure space forming member made of a transmission material that transmits measurement light for measuring a sample;
The sample holder according to claim 1, further comprising: The decompression space forming member, comprising: a bottom member made of an optical transmission material disposed to face and separate from the sample support member; and a wall member disposed between the sample support member and the bottom member. The decompression space forming member having the decompression space configured by a space surrounded by the bottom member, the wall member, and the sample support member,
The sample holder according to claim 1, further comprising: The sample smaller than the sample support surface;
A sample support surface cover in which a sample storage hole for storing the sample is formed and has an outer shape identical to the sample support surface;
The sample holder according to any one of claims 1 to 3, further comprising: The sample support surface cover having a plurality of sample receiving holes formed corresponding to the sizes of the plurality of samples;
The sample holder according to claim 4, further comprising: An optical transmission plate support member for supporting the sample support member made of an optical transmission material;
The decompression space forming member that supports the sample support member via the optical transmission plate support member;
The sample holder according to any one of claims 1 to 5, further comprising: The optical transmission plate support member for supporting a plurality of the sample support members;
The sample holder according to claim 6, further comprising: