JPS62194439A - Method for extracting additive - Google Patents

Method for extracting additive

Info

Publication number
JPS62194439A
JPS62194439A JP3620986A JP3620986A JPS62194439A JP S62194439 A JPS62194439 A JP S62194439A JP 3620986 A JP3620986 A JP 3620986A JP 3620986 A JP3620986 A JP 3620986A JP S62194439 A JPS62194439 A JP S62194439A
Authority
JP
Japan
Prior art keywords
solvent
specimen
additive
flask
weighed
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.)
Pending
Application number
JP3620986A
Other languages
Japanese (ja)
Inventor
Isao Tsujikaido
辻垣内 勲
Yojiro Matsuda
松田 洋二郎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP3620986A priority Critical patent/JPS62194439A/en
Publication of JPS62194439A publication Critical patent/JPS62194439A/en
Pending legal-status Critical Current

Links

Landscapes

  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Extraction Or Liquid Replacement (AREA)

Abstract

PURPOSE:To enable the analysis of a small quantity of a specimen and to make it possible to extract many specimens by one apparatus, by receiving a specimen in a bag-like receiver made of a tetrafluoroethylene resin film to weigh the same and extracting an additive from said specimen. CONSTITUTION:About 0.1g of a specimen is received in a bag-like receiver 11 made of a tetrafluoroethylene resin film preliminarily weighed up to a mg- unit to be weighed and placed in the siphon cup 2 of an extractor 10. A solvent is put in a flask 3 preliminarily adjusted to a constant wt. and the flask 3 is heated and the vapor of the solvent rises through a right-hand tube to be cooled and liquefied by a bulb tube cooler 4 to be fallen on the specimen. The solvent allows the additive in the specimen to elute to enter a left-hand tube and, if the solvent is sufficiently accumulated, said solvent flows out by a siphon theory to be fallen in the lower flask 3. This operation is repeated. After the finish of extraction, the specimen is taken out from the siphon cup and, after drying in air, dried in an air bath at 70 deg.C+ or -5 deg.C to be weighed. The difference before and after extraction is the amount of the additive extracted by the solvent.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は、ゴム・プラスチック等の添加物の溶剤抽出方
法に関するものである。
DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a method for solvent extraction of additives for rubber, plastics, etc.

(従来の技術) ゴム製品に関する溶剤抽出はJISに定められており、
これに準じてプラスチック等も行っている。
(Prior art) Solvent extraction for rubber products is stipulated by JIS.
We also do plastics and other products in accordance with this.

試料2gを7mgまで正しく秤量し、あらかじめ溶剤で
抽出した分析化学用口紙に包むか、第2図のように円筒
口紙1に入れ、抽出器10のサイフオンカップ2中に置
き、あらかじめ恒量になったフラスコ3に溶剤を入れ、
抽出装置を組み立ててフラスコを加熱すると、溶剤の蒸
気が右側の管を通って上昇し、原管冷却器4で冷やされ
、液化して試料の上に落ちる。溶剤は試料中の添加物を
溶出し、左側の管に入り、十分たまるとサイフオンの原
理により流出し、下のフラスコ3に落ちる。これを繰り
返す。このようにして抽出が終った後、抽出液を水浴上
で加熱し溶剤を留出した後、フラスコを7000i:j
OCの空気洛中で恒量になるまで乾燥を繰り返す。そし
て抽出後と抽出前のフラスコ重量の差を添加物の量とし
ている。
Weigh 2g of the sample correctly to 7mg, wrap it in a cap for analytical chemistry that has been extracted with a solvent in advance, or put it in a cylindrical cap 1 as shown in Figure 2, place it in the siphon cup 2 of the extractor 10, and make it to a constant weight in advance. Pour the solvent into flask 3,
When the extraction apparatus is assembled and the flask is heated, the solvent vapor rises through the right tube, is cooled in the raw tube cooler 4, liquefies and falls onto the sample. The solvent elutes the additives in the sample, enters the left tube, and when it accumulates enough, it flows out according to the siphon principle and falls into flask 3 below. Repeat this. After the extraction is completed in this way, the extract is heated on a water bath to distill off the solvent, and the flask is heated to 7000 i:j.
Repeat drying in OC air until constant weight is reached. The difference in flask weight after extraction and before extraction is taken as the amount of additive.

(発明が解決しようとする問題点) 上述の従来の溶剤抽出方法は、恒量にしたフラスコ重量
の前後の差を添加物量としている。この添加物量は通常
10%前後であり、試料2gの場合02g程となる。一
方フラスコの重量が!;0−1.0gで恒量といっても
数mgのバラツキがあるため、分析精度にも影響があっ
た。
(Problems to be Solved by the Invention) In the above-mentioned conventional solvent extraction method, the amount of additive is determined by the difference between the flask weights before and after the constant weight. The amount of this additive is usually around 10%, and in the case of 2 g of sample, it is about 0.2 g. On the other hand, the weight of the flask! ; Even though the weight is constant at 0-1.0 g, there is a variation of several mg, which also affected the accuracy of analysis.

また、少量の試料を対象にする場合は精度的な問題が大
きくなる。
Furthermore, when a small amount of sample is used, accuracy becomes a major problem.

以上のような問題点を本発明は解決しようとするもので
ある。
The present invention is intended to solve the above-mentioned problems.

(問題点を解決するための手段) 従来、試料をあらかじめ溶剤抽出した分析化学用口紙に
包むか、円筒口紙に入れていたのを、第1図のように、
あらかじめmgの単位まで秤量された四弗化エチレン樹
脂フィルムを袋状にしたもの11にθ/g程の試料を入
れて秤量し、これを抽出器のサイフオンカップ2の中に
入れ、一方抽出フラスコ3には溶剤を入れ抽出装置を組
立てる。
(Means for solving the problem) Conventionally, the sample was wrapped in a solvent-extracted wrapper for analytical chemistry or placed in a cylindrical wrapper, as shown in Figure 1.
A sample of about θ/g is placed in a bag 11 of a tetrafluoroethylene resin film weighed in advance to the unit of mg, weighed, and placed in the siphon cup 2 of the extractor, and extracted on the other hand. Fill flask 3 with solvent and assemble the extraction device.

(作用) 少量の試料で分析ができ、/装置で多試料の抽出ができ
る。
(Function) A small amount of sample can be analyzed, and the device can extract multiple samples.

(実施例) あらかじめmgの単位まで秤量された四弗化エチレン樹
脂フィルムからなる袋状のものにa/g程の試料を入れ
秤量する。これを抽出装置のサイフオンカップ中に入れ
、装置を組み立てて湯浴上で加熱しながら抽出を行う。
(Example) A sample of approximately a/g is placed in a bag-shaped bag made of a tetrafluoroethylene resin film that has been weighed in advance to the unit of mg, and then weighed. Place this in the siphon cup of the extraction device, assemble the device, and perform extraction while heating it on a hot water bath.

抽出を終った後、サイフオンカップ中の試料を取り出し
、風乾した後、70°c+t0cの空気洛中で乾燥し秤
量する。
After the extraction is completed, the sample in the siphon cup is taken out and air-dried, then dried in an air chamber at 70°C+t0c and weighed.

抽出前後の差が溶剤抽出された添加量である。The difference before and after extraction is the amount of solvent extracted.

なお、四弗化エチレン多孔質フィルムの孔径は、10.
11より小さいと小さ過ぎ100 、tlを越えると大
きすぎる。
Note that the pore diameter of the tetrafluoroethylene porous film is 10.
If it is smaller than 11, it is too small, and if it exceeds tl, it is too large.

(発明の効果) 以上説明したように口紙から四弗化エチレン樹脂フィル
ムで作成した袋状のものを用いることにしたので (1)  少量の試料で分析が可能になった。
(Effects of the Invention) As explained above, since it was decided to use a bag-shaped bag made of tetrafluoroethylene resin film from the opening paper, (1) analysis became possible with a small amount of sample.

(2)分析精度が従来に比べ向上した。(2) Analysis accuracy has improved compared to conventional methods.

従来  CV値  5〜7% 拳法  CV値  3〜j% (3)/試料//装置が多試料//装置と分析能力が向
上した。
Conventional CV value: 5-7% Kenpo CV value: 3-j% (3) / Samples // The device has a large number of samples // The device and analytical ability have improved.

(41フラスコの恒量が不要となり分析時間が短縮でき
た。
(41 It was not necessary to constantly weigh the flasks, and the analysis time could be shortened.

等の効果がでた。The effect was as follows.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本発明の添加物の抽出方法の説明図。 第2図は従来技術による添加物の抽出方法の説明図であ
る。 1・・・円筒口紙、2・・・サイフオンカップ、3・・
・フラスコ、4・・・原管冷却器、11・・・四弗化エ
チレン樹脂フィルムを袋状にしたもの。 千1図 カシ怠
FIG. 1 is an explanatory diagram of the additive extraction method of the present invention. FIG. 2 is an explanatory diagram of a conventional method for extracting additives. 1... Cylindrical opening paper, 2... Saifon cup, 3...
- Flask, 4... Raw tube cooler, 11... Bag-shaped tetrafluoroethylene resin film. 1,100 figures of oak laziness

Claims (1)

【特許請求の範囲】 1、ゴム・プラスチック等に含まれる添加物の定量分析
において、四弗化エチレン樹脂多孔質フィルムの袋にゴ
ム・プラスチックの試料を入れて、その試料中の添加物
を溶剤で抽出することを特徴とする添加物の抽出方法。 2、四弗化エチレン多孔質フィルムは孔径10〜100
μmであることを特徴とする特許請求の範囲第1項記載
の添加物の抽出方法。
[Claims] 1. In quantitative analysis of additives contained in rubber, plastic, etc., a rubber/plastic sample is placed in a bag made of polytetrafluoroethylene resin porous film, and the additives in the sample are removed using a solvent. A method for extracting additives, which is characterized by extracting with. 2. Tetrafluoroethylene porous film has a pore size of 10 to 100
The method for extracting an additive according to claim 1, wherein the additive is .mu.m.
JP3620986A 1986-02-20 1986-02-20 Method for extracting additive Pending JPS62194439A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3620986A JPS62194439A (en) 1986-02-20 1986-02-20 Method for extracting additive

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3620986A JPS62194439A (en) 1986-02-20 1986-02-20 Method for extracting additive

Publications (1)

Publication Number Publication Date
JPS62194439A true JPS62194439A (en) 1987-08-26

Family

ID=12463358

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3620986A Pending JPS62194439A (en) 1986-02-20 1986-02-20 Method for extracting additive

Country Status (1)

Country Link
JP (1) JPS62194439A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01107803A (en) * 1987-10-22 1989-04-25 Shonan Koryo Kk Extractor for component of animal and plant
CN105582691A (en) * 2014-10-24 2016-05-18 中国石油化工股份有限公司 Extraction agent, application thereof, and method of measuring crosslinking degree of polymer
CN109045749A (en) * 2018-09-25 2018-12-21 浙江农林大学 The multiple organic extraction element of one kind and method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01107803A (en) * 1987-10-22 1989-04-25 Shonan Koryo Kk Extractor for component of animal and plant
CN105582691A (en) * 2014-10-24 2016-05-18 中国石油化工股份有限公司 Extraction agent, application thereof, and method of measuring crosslinking degree of polymer
CN109045749A (en) * 2018-09-25 2018-12-21 浙江农林大学 The multiple organic extraction element of one kind and method

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