JPH0257855B2 - - Google Patents
Info
- Publication number
- JPH0257855B2 JPH0257855B2 JP9360283A JP9360283A JPH0257855B2 JP H0257855 B2 JPH0257855 B2 JP H0257855B2 JP 9360283 A JP9360283 A JP 9360283A JP 9360283 A JP9360283 A JP 9360283A JP H0257855 B2 JPH0257855 B2 JP H0257855B2
- Authority
- JP
- Japan
- Prior art keywords
- base plate
- tablet
- sample
- push rod
- infrared
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000004566 IR spectroscopy Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 2
- 239000011812 mixed powder Substances 0.000 claims description 2
- 239000006185 dispersion Substances 0.000 claims 1
- 239000003826 tablet Substances 0.000 description 22
- IOLCXVTUBQKXJR-UHFFFAOYSA-M potassium bromide Chemical compound [K+].[Br-] IOLCXVTUBQKXJR-UHFFFAOYSA-M 0.000 description 16
- 239000000843 powder Substances 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 239000004570 mortar (masonry) Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000007932 molded tablet Substances 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
Description
この発明は、赤外分光測定用錠剤成形装置に関
するものであり、もう少し詳しくいうと、粉状の
試料を赤外分光法によつて分析するに際し、当該
試料と臭化カリウムのような分散材を混和した粉
状体を錠剤に成形するための赤外分光測定用錠剤
成形装置に関するものである。
従来、この種の装置として第１図、第２図に示
すものがあつた。図において、中央部に突円筒部
１ａのあるベースプレート１と、突円筒部１ａに
嵌合してベースプレート１上に置かれるシリンダ
２と、シリンダ２内で混合試料４を挾持する１対
の鏡面板３と、シリンダ２を囲んでベースプレー
ト１上にＯ−リング５ａを介して置かれる外側シ
リンダ５と、鏡面板３を上方から押圧する押し棒
６と、Ｏ−リング７ａを押し棒６に圧接するため
のリング７と、外側シリンダ５の上端部に螺着さ
れリング７を押圧するしめネジ１５とから構成さ
れてなるものである。
かかる装置による錠剤成形の手順は、
メノウ乳鉢（図示せず）に供試料を入れ、よ
くすりつぶす。
臭化カリウム（KBr）の粉末（200メツシユ
以下の粉末）と試料を混ぜメノー乳鉢中でよく
すりつぶすと同時によく混ぜ合わせる。（試料
と、KBr粉末のまぜる量は後記の表を参照）。
第１図、第２図に示した錠剤成形装置を用
い、ベースプレート１にＯリング５ａをはめて
安定した台に置き、突円筒部１ａにシリンダ２
をはめる。
シリンダ２の中に鏡面板３を１枚入れて、そ
の上にスパチユラで試料と臭化カリウム粉末の
混合された混合試料４を均一にひろげて入れる
（量は表のとおり）。
もう１枚の鏡面板３を混合試料４の上に静か
に置き、外側シリンダ５、押し棒６、Ｏ−リン
グ７ａ、リング７、しめネジ８、の順にセツト
し、しめネジ８をしめつける。
ベースプレート１の横に突出しているパイプ
１ｂに真空ポンプ（図示せず）のゴムホースを
接続し、成形装置のセツトが完了する。
真空ポンプを作動させ、表に示してある圧力
になるまで手押し油圧プレス（図示せず）を動
かし、押し棒６を矢印で示すように押圧する。
表に示してある圧力に達したら、油圧プレスに
よる押圧をやめ、表に示してある時間そのまま
の状態で放置する。
真空ポンプを止め、その配管をパイプ１ｂか
らはずす。
ベースプレート１をおさえ、外側シリンダ５
を上方に引き抜けば、２枚の鏡面板３に挾持さ
れた混合試料４の錠剤がシリンダ２の中に残
る。
第３図は錠剤取出器で、うけ台９と試料押出
し棒１０で構成されている。
上記のシリンダ２を第３図のごとくうけ台９
の中に入れて、シリンダ２の穴に試料押し出し
棒１０を入れて静かに油圧プレス（図示せず）
で押し出す。
かようにして取り出された混合試料錠剤４は、
第４図に示す金属製錠剤ホルダーの組立金属セル
１１ａ，１１ｂからなるネジ部１２に入れて上か
ら試料固定ネジ１２ａで固定し、赤外分光装置
（図示せず）に装着し、測定が行なわれる。
しかし、以上の構成になる従来の装置は、手順
でも述べたように、操作が非常に複雑で、かつ、
部品点数もきわめて多く、成形した錠剤を、やや
もすると、直接手でふれて金属錠剤ホルダーに移
すなど、測定上の難点があり、また、手間がかか
る等の欠点があつた。
この発明は、以上のような従来のものの欠点を
解消するためになされたもので、錠剤成形装置
が、主に、押し棒とベースプレートの２体からな
り、かつ、ベースプレートのネジを除去すること
により、そのまま金属錠剤ホルダーとして使用で
き、部品点数を最少限にすると共に、操作を簡略
化した赤外分光測定用錠剤成形装置を提供するこ
とを目的とするものである。
以下、この発明の一実施例を第５図、第６図に
ついて説明する。１３はうけ部１３ａを有するう
け台で、うけ部１３ａの中央部には凹部１３ｂが
形成されている。うけ部１３ａに嵌着されるベー
スプレート１４には中央のネジ穴１４ａとその上
部に円筒凹部１４ｂが形成されており、さらに外
周に切込み１４ｃが形成されている。ネジ１１５
はネジ穴１４ａに螺合する。円筒凹部１４ｂに嵌
合する突円筒１６ａが中央に形成された押し棒１
６には、真空ポンプ（図示せず）に接続される吸
引口１６ｂが突円筒１６ａの周囲に通じて設けら
れている。押し棒１６の上部に形成された突部１
６ｃには油圧プレス（図示せず）による押圧力が
加えられる。１７はＯ−リングを示す。
次に作用および効果について説明する。まず、
錠剤の成形手順は、
メノウ乳鉢（図示せず）に供試料を入れ、よ
くすりつぶす。
分散材である臭化カリウム（KBr）の粉末
（200メツシユ以下の粉末）と試料をメノウ乳鉢
中でよくすりつぶすと同時によく混ぜ合わせる
（試料と、KBr粉末のまぜる量は表に記載）。
ネジ１５を螺着したうけ台１３のうけ部１３
ａにベースプレート１４を置き、うけ台１３に
ベースプレート１４をはめこむ。このときベー
スプレート１４にネジ１５が正しく係着してい
ることを確認する。
ベースプレート１４の円筒凹部１４ｂにスパ
チユラで試料と臭化カリウム粉末の混合された
混合試料４を均一にひろげて入れる（量は表の
とおり）。
ベースプレート１４にＯ−リング１７をセツ
トし、押し棒１６をベースプレート１４上にセ
ツトする。
押し棒１６の吸引口１６ｂに真空ポンプのゴ
ムホースを接続し、錠剤成形装置のセツトが完
了する。
真空ポンプを作動させ、表に示してある圧力
になるまで手押し油圧プレスを動作して押し棒
１６に押圧力を加える。表に示してある圧力に
達したら油圧プレスをやめ、表に示してある時
間そのままの状態で放置する。
真空ポンプを止め、その配管を押し棒１６か
らはずす。
うけ台１３、ベースプレート１４、押し棒１
６を互いに分離し、ベースプレート１４からネ
ジ１５をゆるめてとりはずすと、ベースプレー
ト１４は第７図、第８図のように、錠剤に成形
された試料４を光透過状態に保持している。
ベースプレート１４の両側面には切り込み１
４ｃがあるので、ベースプレート１４はホルダ
ーとしても使用でき、赤外分光装置（図示せ
ず）に装着して測定を行なうことができる。
以上のように、この発明によれば、従来市販さ
れ、部品点数の多い錠剤成型器、らには錠剤取出
し器及び金属性錠剤ホルダーが不要であり、主と
してベースプレートと吸引口付の押し棒で足り、
かつ、ベースプレートをホルダーに兼用して赤外
分析の測定が可能である。また、試料（錠剤）に
も触れることなく、成形から分析する前までの作
業が大幅に簡略化できる効果がある。
The present invention relates to a tablet forming apparatus for infrared spectroscopy, and more specifically, when analyzing a powdered sample by infrared spectroscopy, the present invention relates to a tablet forming apparatus for infrared spectroscopy. The present invention relates to a tablet forming apparatus for infrared spectroscopy for forming mixed powder into tablets. Conventionally, there have been devices of this type as shown in FIGS. 1 and 2. In the figure, a base plate 1 having a protruding cylindrical portion 1a in the center, a cylinder 2 that fits into the protruding cylindrical portion 1a and is placed on the base plate 1, and a pair of mirror-surfaced plates that sandwich a mixed sample 4 within the cylinder 2. 3, an outer cylinder 5 that surrounds the cylinder 2 and is placed on the base plate 1 via an O-ring 5a, a push rod 6 that presses the mirror plate 3 from above, and an O-ring 7a that is pressed against the push rod 6. The ring 7 is made up of a ring 7 and a tightening screw 15 that is screwed onto the upper end of the outer cylinder 5 and presses the ring 7. The procedure for forming tablets using such a device is as follows: Place the sample in an agate mortar (not shown) and grind thoroughly. Mix potassium bromide (KBr) powder (less than 200 mesh powder) and the sample, grind well in an agate mortar, and mix well at the same time. (See the table below for the amount of sample and KBr powder mixed.) Using the tablet forming apparatus shown in FIG. 1 and FIG.
Put on. One specular plate 3 is placed in the cylinder 2, and a mixed sample 4 containing the sample and potassium bromide powder is uniformly spread thereon using a spatula (the amount is as shown in the table). Gently place another mirror plate 3 on top of the mixed sample 4, set the outer cylinder 5, push rod 6, O-ring 7a, ring 7, and tightening screw 8 in this order, and tighten the tightening screw 8. A rubber hose of a vacuum pump (not shown) is connected to the pipe 1b protruding from the side of the base plate 1, and the setting of the molding apparatus is completed. Activate the vacuum pump, move the hand hydraulic press (not shown) until the pressure shown in the table is reached, and press the push rod 6 as shown by the arrow.
When the pressure shown in the table is reached, stop pressing with the hydraulic press and leave it as it is for the time shown in the table. Stop the vacuum pump and disconnect its piping from pipe 1b. Hold the base plate 1 and the outer cylinder 5
When the cylinder 2 is pulled upward, the tablets of the mixed sample 4 held between the two mirror plates 3 remain in the cylinder 2. FIG. 3 shows a tablet ejector, which is composed of a receiving stand 9 and a sample pushing rod 10. The above cylinder 2 is placed on a support stand 9 as shown in Figure 3.
Insert the sample extrusion rod 10 into the hole of cylinder 2 and gently press the hydraulic press (not shown).
Push it out. The mixed sample tablet 4 taken out in this way is
The assembled metal tablet holder shown in FIG. 4 is inserted into the threaded part 12 consisting of metal cells 11a and 11b, fixed from above with the sample fixing screw 12a, and mounted on an infrared spectrometer (not shown) to perform measurements. It will be done. However, as mentioned in the procedure, the conventional device with the above configuration is very complicated to operate, and
The number of parts was extremely large, and there were drawbacks such as measurement difficulties, such as having to touch the molded tablets directly and transferring them to a metal tablet holder, and the fact that it was time-consuming. This invention was made in order to eliminate the drawbacks of the conventional ones as described above. It is an object of the present invention to provide a tablet forming apparatus for infrared spectroscopy that can be used as a metal tablet holder as is, has a minimum number of parts, and has simplified operation. An embodiment of the present invention will be described below with reference to FIGS. 5 and 6. Reference numeral 13 denotes a pedestal having a receiving portion 13a, and a recessed portion 13b is formed in the center of the receiving portion 13a. The base plate 14 fitted into the receiving portion 13a has a central screw hole 14a, a cylindrical recess 14b formed above the screw hole 14a, and a notch 14c formed on the outer periphery. screw 115
is screwed into the screw hole 14a. A push rod 1 having a protruding cylinder 16a formed in the center to fit into a cylindrical recess 14b.
6 is provided with a suction port 16b that is connected to a vacuum pump (not shown) and extends around the protruding cylinder 16a. Projection 1 formed on the upper part of the push rod 16
A pressing force is applied to 6c by a hydraulic press (not shown). 17 indicates an O-ring. Next, the action and effect will be explained. first,
To form tablets, place the sample in an agate mortar (not shown) and grind thoroughly. Thoroughly grind the dispersing material potassium bromide (KBr) powder (200 mesh powder or less) and the sample in an agate mortar, and mix well at the same time (the amounts of sample and KBr powder to be mixed are listed in the table). Receiving portion 13 of the receiving stand 13 to which the screw 15 is screwed
Place the base plate 14 on a, and fit the base plate 14 into the receiving stand 13. At this time, confirm that the screws 15 are properly engaged with the base plate 14. A mixed sample 4 containing a sample and potassium bromide powder is spread uniformly into the cylindrical recess 14b of the base plate 14 using a spatula (the amount is as shown in the table). Set the O-ring 17 on the base plate 14, and set the push rod 16 on the base plate 14. The rubber hose of the vacuum pump is connected to the suction port 16b of the push rod 16, and the setting of the tablet forming apparatus is completed. Activate the vacuum pump and apply pressing force to the push rod 16 by operating the hand hydraulic press until the pressure shown in the table is reached. When the pressure shown in the table is reached, stop the hydraulic press and leave it in that state for the time shown in the table. Stop the vacuum pump and remove its piping from the push rod 16. Receiving stand 13, base plate 14, push rod 1
6 are separated from each other and removed by loosening the screws 15 from the base plate 14, the base plate 14 holds the sample 4 formed into a tablet in a light transmitting state as shown in FIGS. 7 and 8. There are notches 1 on both sides of the base plate 14.
4c, the base plate 14 can also be used as a holder, and can be attached to an infrared spectrometer (not shown) for measurement. As described above, according to the present invention, there is no need for a tablet ejector or a metal tablet holder in conventional commercially available tablet molding machines that have a large number of parts, and a base plate and a push rod with a suction port are sufficient. ,
Additionally, the base plate can also be used as a holder for infrared analysis measurements. In addition, there is no need to touch the sample (tablet), which greatly simplifies the work from molding to analysis.
【表】【table】
第１図は従来装置の正断面図、第２図はその分
解斜視図、第３図は従来の錠剤取出し器の正断面
図、第４図は従来の金属製錠剤ホルダーの斜視
図、第５図はこの発明の一実施例の一部分解正断
面図、第６図はその押し棒の正断面図、第７図、
第８図はそのベースプレートをホルダーに兼用し
た態様を示す正断面図と底面図である。
４……混合試料、１３……うけ台、１３ａ……
うけ部、１３ｂ……凹部、１４……ベースプレー
ト、１４ａ……ネジ穴、１４ｂ……円筒凹部、１
４ｃ……切込み、１５……ネジ、１６……押し
棒、１６ａ……突円筒、１６ｂ……吸引口、１６
ｃ……突部、１７……Ｏ−リング。なお、各図
中、同一符号は同一又は相当部分を示す。
Fig. 1 is a front sectional view of a conventional device, Fig. 2 is an exploded perspective view thereof, Fig. 3 is a front sectional view of a conventional tablet ejector, Fig. 4 is a perspective view of a conventional metal tablet holder, and Fig. 5 is a front sectional view of a conventional device. The figure is a partially exploded front sectional view of an embodiment of the present invention, FIG. 6 is a front sectional view of the push rod, and FIG.
FIG. 8 is a front sectional view and a bottom view showing an embodiment in which the base plate is also used as a holder. 4... Mixed sample, 13... Receiver, 13a...
Receiving portion, 13b... recess, 14... base plate, 14a... screw hole, 14b... cylindrical recess, 1
4c...notch, 15...screw, 16...push rod, 16a...protruding cylinder, 16b...suction port, 16
c...Protrusion, 17...O-ring. In each figure, the same reference numerals indicate the same or equivalent parts.
Claims (1)
て透明な錠剤に成形する赤外分光測定用錠剤成形
装置において、うけ部が形成されたうけ台と、中
央にネジ穴が形成された円筒凹部が設けられ前記
うけ部に嵌合するベースプレートと、前記ネジ穴
に螺合するネジと、中央に前記円筒凹部に嵌合す
る突円筒が形成されこの突円筒の周囲に通じて設
けられた真空引き用吸引口を備えた押し棒を備え
てなることを特徴とする赤外分光測定用錠剤成形
装置。 ２ 外周に赤外分光装置へ装着するための切込み
が形成されたベースプレートを備えた特許請求の
範囲第１項記載の赤外分光測定用錠剤成形装置。[Scope of Claims] 1. A tablet forming apparatus for infrared spectrometry that presses a mixed powder of a sample and a dispersion material under vacuum to form a transparent tablet, which comprises a receiving base in which a receiving part is formed, and a center A base plate is provided with a cylindrical recess in which a screw hole is formed and fits into the receiving part, a screw is screwed into the screw hole, and a protruding cylinder is formed in the center to fit into the cylindrical recess. 1. A tablet forming device for infrared spectroscopy, comprising a push rod equipped with a vacuum suction port that communicates with the surroundings. 2. The tablet forming device for infrared spectroscopy according to claim 1, comprising a base plate having a notch formed on the outer periphery for attachment to an infrared spectrometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58093602A JPS59217135A (en) | 1983-05-25 | 1983-05-25 | Forming device for tablet for infrared spectroscopic measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58093602A JPS59217135A (en) | 1983-05-25 | 1983-05-25 | Forming device for tablet for infrared spectroscopic measurement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59217135A JPS59217135A (en) | 1984-12-07 |
| JPH0257855B2 true JPH0257855B2 (en) | 1990-12-06 |
Family
ID=14086868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58093602A Granted JPS59217135A (en) | 1983-05-25 | 1983-05-25 | Forming device for tablet for infrared spectroscopic measurement |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59217135A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07140063A (en) * | 1993-11-12 | 1995-06-02 | Kuromato Sci Kk | Method and device for molding tablet sample for infrared spectrophotometry |
| US7591557B2 (en) * | 2005-05-10 | 2009-09-22 | Wtp Optics, Inc. | Solid state method and apparatus for making lenses and lens components |
| CN104729903A (en) * | 2015-03-30 | 2015-06-24 | 四川新先达测控技术有限公司 | Powder sample making mould assembly in X-luminoscope |
| CN105115806A (en) * | 2015-09-30 | 2015-12-02 | 常州大学 | Seedrin coal sample experimental sample simple manufacturing device |
| JP6765328B2 (en) | 2017-03-15 | 2020-10-07 | 株式会社堀場製作所 | Preparation method, glow discharge emission spectrometry method, instrument, and glow discharge emission spectrometer |
-
1983
- 1983-05-25 JP JP58093602A patent/JPS59217135A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59217135A (en) | 1984-12-07 |
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