JPH05142114A - Sampling capsule and sampling method - Google Patents
Sampling capsule and sampling methodInfo
- Publication number
- JPH05142114A JPH05142114A JP21088191A JP21088191A JPH05142114A JP H05142114 A JPH05142114 A JP H05142114A JP 21088191 A JP21088191 A JP 21088191A JP 21088191 A JP21088191 A JP 21088191A JP H05142114 A JPH05142114 A JP H05142114A
- Authority
- JP
- Japan
- Prior art keywords
- capsule
- organic compound
- sampling
- liquid organic
- carrier
- 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.)
- Granted
Links
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、サンプリングカプセ
ルとサンプリング方法に関するものである。さらに詳し
くは、この発明は、液体有機化合物を精度良く、かつ正
確にサンプリングすることのできるサンプリングカプセ
ルとこれを用いたサンプリング方法に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sampling capsule and a sampling method. More specifically, the present invention relates to a sampling capsule capable of accurately and accurately sampling a liquid organic compound, and a sampling method using the same.
【０００２】[0002]
【従来の技術】有機化合物中に含まれる炭素、水素、窒
素、酸素、硫黄等の各種の元素を精密に定量分析するた
めには、分析試料の質量を正確に秤量することがきわめ
て重要である。従来においては、固体有機化合物の場合
には、分析試料をスズ製のマクロカプセル内に装填し、
分析試料の質量を正確に秤量した後に、カプセルを圧縮
し、カプセル内の空気、特に窒素ガスを追い出してシー
ルするサンプリングサンプリング方法が採用されてい
る。2. Description of the Related Art Accurately weighing the mass of an analytical sample is extremely important for the accurate quantitative analysis of various elements such as carbon, hydrogen, nitrogen, oxygen and sulfur contained in organic compounds. . Conventionally, in the case of a solid organic compound, an analytical sample is loaded into a tin macrocapsule,
A sampling sampling method is employed in which the mass of an analytical sample is accurately weighed, and then the capsule is compressed and air, particularly nitrogen gas, in the capsule is expelled and sealed.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、たとえ
ば上記したようなサンプリング方法を不揮発性または揮
発性の液体有機化合物に適用すると、カプセル内の空気
を追い出すためにカプセルを圧縮すると、カプセル上部
から液体試料が外部ににじみ出し、サンプリングするこ
とが不可能となるという問題がある。また、揮発性の試
料の場合には、サンプリング操作において試料が揮発し
減量するため、正確な質量測定を行うことができないと
いう問題もある。However, when the sampling method as described above is applied to a non-volatile or volatile liquid organic compound, for example, when the capsule is compressed to expel the air in the capsule, the liquid sample is discharged from the upper portion of the capsule. Is bleeding outside, making it impossible to sample. Further, in the case of a volatile sample, the sample volatilizes in the sampling operation and the amount thereof is reduced, so that there is a problem that accurate mass measurement cannot be performed.
【０００４】一方、不揮発性または揮発性の液体有機化
合物のサンプリング方法については、従来より種々の方
策が検討されてきてもいるが、いずれの場合にもサンプ
リング操作が煩雑であり、特殊な器具などを必要とする
という欠点があり、しかも試料の質量の秤取り精度や正
確さも十分なものとなっていないのが実情であった。On the other hand, various methods have been studied for the sampling method of the non-volatile or volatile liquid organic compound, but in any case, the sampling operation is complicated, and a special instrument or the like is used. However, the actual situation is that the accuracy and precision of weighing the sample are not sufficient.
【０００５】この発明は、以上の通りの事情に鑑みてな
されたものであり、従来の液体有機化合物のサンプリン
グ方法の欠点を解消し、不揮発性、揮発性に関わらず、
液体有機化合物を精度良く、かつ正確にサンプリングす
ることのできる、新しいサンプリングカプセルとサンプ
リング方法を提供することを目的としている。The present invention has been made in view of the above circumstances, solves the drawbacks of the conventional liquid organic compound sampling methods, and is non-volatile or non-volatile.
An object of the present invention is to provide a new sampling capsule and a sampling method capable of accurately and accurately sampling a liquid organic compound.
【０００６】[0006]
【課題を解決するための手段】この発明は、上記の課題
を解決するものとして、金属カプセル内の底部に液体有
機化合物を吸着させる吸着担体を配設してなることを特
徴とするサンプリングカプセルを提供する。またこの発
明は、上記のサンプリングカプセルの吸着担体に、液体
有機化合物を吸着させ、次いでカプセルを圧縮してシー
ルした後に、質量測定することを特徴とするサンプリン
グ方法をも提供するものである。In order to solve the above problems, the present invention provides a sampling capsule characterized in that an adsorption carrier for adsorbing a liquid organic compound is provided at the bottom of a metal capsule. provide. The present invention also provides a sampling method characterized by adsorbing a liquid organic compound on the adsorption carrier of the sampling capsule, compressing and sealing the capsule, and then measuring the mass.
【０００７】たとえば図１に示したように、この発明の
サンプリングカプセルにおいては、金属カプセル（１）
内の底部に不揮発性または揮発性の液体有機化合物を吸
着させるたとえばシリカファイバー等の吸着担体（２）
を配設する。この吸着担体（２）により有機化合物の蒸
気圧が著しく減少するため、サンプリング操作中に揮発
性の液体試料が蒸発して減量するのを防止することがで
きる。また、カプセル内の空気を追い出すためにカプセ
ルを圧縮しても、吸着担体（２）に保持された液体試料
がカプセル外部ににじみ出ることはない。For example, as shown in FIG. 1, in the sampling capsule of the present invention, the metal capsule (1)
An adsorption carrier (2) for adsorbing a non-volatile or volatile liquid organic compound on the bottom of the inside, for example, silica fiber
To arrange. Since the vapor pressure of the organic compound is remarkably reduced by the adsorption carrier (2), it is possible to prevent the volatile liquid sample from being evaporated and reduced during the sampling operation. Further, even if the capsule is compressed to expel the air inside the capsule, the liquid sample held by the adsorption carrier (2) does not ooze out of the capsule.
【０００８】不揮発性または揮発性の液体有機化合物を
サンプリングする場合には、図１に例示したような吸着
担体（２）を金属カプセル（１）内の底部に配設したサ
ンプリングカプセルをマイクロバランス上で風袋消去
し、次いで吸着担体（２）に所要量の液体試料を吸着さ
せる。この後に、金属カプセル（１）を圧縮してカプセ
ル（１）内の空気を追い出し、シールして液体試料の質
量を秤量する。When sampling a non-volatile or volatile liquid organic compound, a sampling capsule having an adsorption carrier (2) illustrated in FIG. 1 at the bottom of a metal capsule (1) is placed on a microbalance. Then, the tare is erased, and then a required amount of the liquid sample is adsorbed on the adsorption carrier (2). After this, the metal capsule (1) is compressed to expel the air in the capsule (1), sealed, and the mass of the liquid sample is weighed.
【０００９】このようにして、特殊な器具を使用せずと
も、精度良く、かつ正確に液体有機化合物をサンプリン
グすることができ、試料の不揮発性、揮発性に関わりな
く同一の操作で行うことができる。サンプリング操作が
簡便かつ迅速となる。In this way, the liquid organic compound can be sampled accurately and accurately without using a special instrument, and the same operation can be performed regardless of whether the sample is nonvolatile or volatile. it can. The sampling operation becomes simple and quick.
【００１０】[0010]
【実施例】以下、実施例を示し、この発明についてさら
に詳しく説明する。質量約５４mgのスズ製カプセル内の
底部に直径約３mm，厚さ約2.5mm のシリカファイバーを
固定し、サンプリングカプセルを作成した。次いで、ガ
ラス製毛細管（内径約0.5mm ）を用いてニトロベンゼン
を吸い上げ、サンプリングカプセル内のシリカファイバ
ーに吸着させた。この後に、カプセルを圧縮してシール
し、質量を測定した。EXAMPLES The present invention will be described in more detail below with reference to examples. A silica capsule having a diameter of about 3 mm and a thickness of about 2.5 mm was fixed to the bottom of a tin capsule having a mass of about 54 mg to prepare a sampling capsule. Then, nitrobenzene was sucked up using a glass capillary tube (inner diameter of about 0.5 mm) and adsorbed on the silica fiber in the sampling capsule. After this, the capsules were compressed and sealed and the mass was measured.
【００１１】以上のようにしてサンプリングしたニトロ
ベンゼン中に含まれる炭素、水素および窒素を７回連続
して分析し、測定した結果を示したものが表１である。Table 1 shows the results of the measurement of carbon, hydrogen and nitrogen contained in nitrobenzene sampled as described above seven times in succession.
【００１２】[0012]
【表１】 [Table 1]
【００１３】この表１からも明らかなように、精度が良
好で、かつ正確な分析結果が得られた。もちろんこの発
明は、以上の例によって限定されるものではない。金属
カプセルの材質、吸着担体の種類および形状、また、有
機化合物の種類等の細部については様々な態様が可能で
あることはいうまでもない。As is clear from Table 1, accurate and accurate analysis results were obtained. Of course, the present invention is not limited to the above examples. Needless to say, various aspects are possible in terms of details such as the material of the metal capsule, the type and shape of the adsorption carrier, and the type of the organic compound.
【００１４】[0014]
【発明の効果】以上詳しく説明した通り、この発明によ
って、液体有機化合物を精度良く、かつ正確にサンプリ
ングすることができる。液体試料中の各種の元素の微量
定量分析の精度と正確さが向上する。As described in detail above, according to the present invention, a liquid organic compound can be sampled accurately and accurately. The precision and accuracy of microquantitative analysis of various elements in a liquid sample are improved.
【図１】この発明のサンプリングカプセルを例示した断
面図である。FIG. 1 is a cross-sectional view illustrating a sampling capsule of the present invention.
１ 金属カプセル ２ 吸着担体 1 metal capsule 2 adsorption carrier
Claims (2)
を吸着させる吸着担体を配設してなることを特徴とする
サンプリングカプセル。1. A sampling capsule characterized in that an adsorption carrier for adsorbing a liquid organic compound is arranged at the bottom of a metal capsule.
を吸着させる吸着担体を配設したサンプリングカプセル
の吸着担体に、液体有機化合物を吸着させ、次いでカプ
セルを圧縮してシールした後に、質量測定することを特
徴とするサンプリング方法。2. A liquid organic compound is adsorbed on an adsorption carrier of a sampling capsule in which an adsorption carrier for adsorbing a liquid organic compound is provided at the bottom of a metal capsule, and then the capsule is compressed and sealed, and then the mass is measured. A sampling method characterized by the above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3210881A JP2988752B2 (en) | 1991-08-22 | 1991-08-22 | Sampling capsule and sampling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3210881A JP2988752B2 (en) | 1991-08-22 | 1991-08-22 | Sampling capsule and sampling method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05142114A true JPH05142114A (en) | 1993-06-08 |
| JP2988752B2 JP2988752B2 (en) | 1999-12-13 |
Family
ID=16596641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3210881A Expired - Fee Related JP2988752B2 (en) | 1991-08-22 | 1991-08-22 | Sampling capsule and sampling method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2988752B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105628437A (en) * | 2015-12-21 | 2016-06-01 | 赣州江钨拉法格高铁铜材有限公司 | Furnace-front sampling method for copper alloy cast with upward casting process |
-
1991
- 1991-08-22 JP JP3210881A patent/JP2988752B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105628437A (en) * | 2015-12-21 | 2016-06-01 | 赣州江钨拉法格高铁铜材有限公司 | Furnace-front sampling method for copper alloy cast with upward casting process |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2988752B2 (en) | 1999-12-13 |
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