JP4914138B2 - Collection tube and filter used therefor - Google Patents

Collection tube and filter used therefor Download PDF

Info

Publication number
JP4914138B2
JP4914138B2 JP2006198544A JP2006198544A JP4914138B2 JP 4914138 B2 JP4914138 B2 JP 4914138B2 JP 2006198544 A JP2006198544 A JP 2006198544A JP 2006198544 A JP2006198544 A JP 2006198544A JP 4914138 B2 JP4914138 B2 JP 4914138B2
Authority
JP
Japan
Prior art keywords
adsorbent
storage chamber
collection tube
inflow hole
hole
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.)
Active
Application number
JP2006198544A
Other languages
Japanese (ja)
Other versions
JP2008026130A (en
Inventor
真利 柴田
義浩 鈴木
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.)
Sibata Scientific Tech Ltd
Original Assignee
Sibata Scientific Tech 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 Sibata Scientific Tech Ltd filed Critical Sibata Scientific Tech Ltd
Priority to JP2006198544A priority Critical patent/JP4914138B2/en
Publication of JP2008026130A publication Critical patent/JP2008026130A/en
Application granted granted Critical
Publication of JP4914138B2 publication Critical patent/JP4914138B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Sampling And Sample Adjustment (AREA)
  • Separation Of Gases By Adsorption (AREA)

Description

本発明は、大気中のホルムアルデヒドやベンゼンなどの被捕集物質を捕集する捕集管及びそれに用いられるフィルタに関する。   The present invention relates to a collection tube for collecting substances to be collected such as formaldehyde and benzene in the atmosphere, and a filter used therefor.

従来から大気中のホルムアルデヒドやベンゼンなどの被捕集物質を捕集するものとして、様々なものが用いられており、例えば、シリカゲルや活性炭などの吸着剤が収容された吸着剤収容室内に大気を吸引することによって、大気中の被捕集物質を捕集する捕集管がある。この種の捕集管２８は、図５に示すように、吸着剤３０が収容される吸着剤収容室３２と、吸着剤収容室３２に気体が流入可能な流入孔３４と、流入孔３４と対向する位置に形成され、吸着剤収容室３２内の気体が流出可能な流出孔３６と、吸着剤収容室３２内の流出孔３６の位置に設けられ、吸着剤３０が通過不能なフィルタ３８と、を備えており、図６に示すように流出孔３６側に吸引ポンプ４０を接続し、流入孔３４から吸着剤収容室３２内に大気を吸引して、大気中の被捕集物質を捕集するよう構成されている（非特許文献１参照）。   Various materials have been used to collect collected substances such as formaldehyde and benzene in the atmosphere. For example, the atmosphere is placed in an adsorbent storage chamber in which an adsorbent such as silica gel or activated carbon is stored. There is a collection tube for collecting substances to be collected in the air by suction. As shown in FIG. 5, this type of collection tube 28 includes an adsorbent storage chamber 32 in which the adsorbent 30 is stored, an inflow hole 34 through which gas can flow into the adsorbent storage chamber 32, and an inflow hole 34. An outflow hole 36 that is formed at an opposing position and through which gas in the adsorbent storage chamber 32 can flow out, and a filter 38 that is provided at the position of the outflow hole 36 in the adsorbent storage chamber 32 and through which the adsorbent 30 cannot pass. As shown in FIG. 6, a suction pump 40 is connected to the outflow hole 36 side, and the atmosphere is sucked into the adsorbent storage chamber 32 from the inflow hole 34 to capture the collected substances in the atmosphere. It is comprised so that it may collect (refer nonpatent literature 1).

このように吸着剤に捕集された被捕集物質は、注射器によって吸引孔から吸着剤収容室内に溶媒を注入して、溶媒とともに流出孔から被捕集物質を流し出すことによって、回収している。   The collected substance collected in the adsorbent in this way is recovered by injecting the solvent from the suction hole into the adsorbent containing chamber by a syringe and flowing the collected substance from the outflow hole together with the solvent. Yes.

２００４〜０５年 柴田科学総合カタログ 第４４７頁2004-05 Shibata Science General Catalog, page 447

しかしながら、吸着剤に吸着された被捕集剤を溶媒によって流し出す場合、吸着剤全域に溶媒を流し込む必要があるため、溶媒を一定の低速、例えば１ｍｌ／ｍｉｎで５分間注射器によって注入を続けなければならない。このため、回収に時間を要するとともに、分析者によって回収率が異なるという問題が生じることになる。   However, when the collection agent adsorbed on the adsorbent is poured out by the solvent, since it is necessary to pour the solvent over the entire adsorbent, the solvent must be continuously injected by a syringe at a constant low speed, for example, 1 ml / min for 5 minutes. I must. For this reason, there are problems that it takes time for the collection and the collection rate varies depending on the analyst.

そこで、本発明は、溶媒を高速で注入した場合であっても、吸着剤に吸着された被捕集剤を十分に回収することができる捕集管及びそれに用いられるフィルタを提供することを目的とする。   Therefore, an object of the present invention is to provide a collection tube capable of sufficiently collecting the collected agent adsorbed by the adsorbent and a filter used therefor even when the solvent is injected at a high speed. And

以上の目的を達成するため、本発明は、吸着剤が収容される吸着剤収容室と、該吸着剤収容室に気体が流入可能な流入孔と、該流入孔と対向する位置に形成され、前記吸着剤収容室内の気体が流出可能な流出孔と、前記吸着剤収容室内の前記流出孔の位置に設けられ、前記吸着剤が通過不能なフィルタと、を備えた捕集管において、前記フィルタの前記流出孔の位置が流入孔に向かって突出していることを特徴とする。   In order to achieve the above object, the present invention is formed in an adsorbent storage chamber in which an adsorbent is stored, an inflow hole through which gas can flow into the adsorbent storage chamber, and a position facing the inflow hole, In the collecting tube, comprising: an outflow hole through which the gas in the adsorbent storage chamber can flow out; and a filter provided at a position of the outflow hole in the adsorbent storage chamber and through which the adsorbent cannot pass; The position of the outflow hole is projected toward the inflow hole.

また、本発明は、吸着剤が収容される吸着剤収容室と、該吸着剤収容室に気体が流入可能な流入孔と、該流入孔と対向する位置に形成され、前記吸着剤収容室内の気体が流出可能な流出孔と、を備えた捕集管の前記吸着剤収容室内の前記流出孔の位置に設けられ、前記吸着剤が通過不能なフィルタにおいて、前記フィルタの前記流出孔の位置が流入孔に向かって突出していることを特徴とする。   The present invention also includes an adsorbent storage chamber in which the adsorbent is stored, an inflow hole through which gas can flow into the adsorbent storage chamber, and a position facing the inflow hole. In a filter in which the adsorbent cannot pass, the position of the outflow hole of the filter is set at a position of the outflow hole in the adsorbent storage chamber of a collection pipe provided with a gas outflow hole. It protrudes toward the inflow hole.

以上のように、本発明に係る捕集管及びそれに用いられるフィルタにおいては、流入孔から流入された溶媒がフィルタの突出部に当たり、その一部が吸着剤収容室の周囲まで至るので、低速で注入しなくても被吸着物質の回収を十分に行うことができる。   As described above, in the collection tube according to the present invention and the filter used therefor, the solvent flowing in from the inflow hole hits the protruding portion of the filter, and a part thereof reaches the periphery of the adsorbent storage chamber, so at low speed. Even if it does not inject, the substance to be adsorbed can be sufficiently recovered.

以上のように、本発明によれば、溶媒を高速で注入した場合であっても、吸着剤に吸着された被捕集剤を十分に回収することができる捕集管及びそれに用いられるフィルタを提供することができる。   As described above, according to the present invention, even when the solvent is injected at a high speed, the collection tube that can sufficiently collect the collection agent adsorbed on the adsorbent and the filter used therefor are provided. Can be provided.

次に、本発明に係る捕集管の実施例について図面に基づいて説明する。図１は、本実施例に係る捕集管の側面断面図である。本実施例に係る捕集管は、図１に示すように、有底円筒状に形成された捕集管本体１０と、捕集管本体１０の開口部１０ａを塞ぐ蓋部材１２と、捕集管本体１０の内部底面に設けられたフィルタ１４と、捕集管本体１０内に収容された吸着剤１６と、を備えている。   Next, an example of a collection tube according to the present invention will be described with reference to the drawings. FIG. 1 is a side sectional view of a collection tube according to the present embodiment. As shown in FIG. 1, the collection tube according to the present embodiment includes a collection tube main body 10 formed in a bottomed cylindrical shape, a lid member 12 that closes an opening 10 a of the collection tube main body 10, and a collection. The filter 14 provided in the internal bottom face of the pipe | tube main body 10 and the adsorption agent 16 accommodated in the collection pipe | tube main body 10 are provided.

捕集管本体１０は、内部に円柱状の空間１０ｂが形成されており、この空間１０ｂは、吸着剤１６の収容室として機能する。また、捕集管本体１０の底面１０ｃの中央には、約円筒状の突出部１８が形成されており、この突出部１８には、その先端の中心から捕集管本体１０内まで貫通する流出孔２０が形成されている。この突出部１８は、先端方向に向かって若干先細りとなっており、吸引ポンプ（図示省略）の吸引チューブに挿入して接続することができる。   The collection tube main body 10 has a cylindrical space 10 b formed therein, and this space 10 b functions as a storage chamber for the adsorbent 16. Further, an approximately cylindrical protruding portion 18 is formed at the center of the bottom surface 10c of the collecting tube body 10, and the protruding portion 18 flows out from the center of the tip thereof into the collecting tube body 10. A hole 20 is formed. The protrusion 18 is slightly tapered toward the distal end, and can be inserted into and connected to a suction tube of a suction pump (not shown).

蓋部材１２は、捕集管本体１０よりも大径な円柱状に形成され、裏面１２ａには、円筒状の突出部１２ｂが突出している。この円筒状の突出部１２ｂは、捕集管本体１０の開口１０ａに嵌合されるように、その外径が捕集管本体１０の内径と同径に形成されている。また蓋部材、中心には、表面から裏面に亘って貫通する流入孔２２が形成されており、この流入孔２２から捕集管本体１０の吸着剤収容室１０ｂ内に大気を流入することができる。   The lid member 12 is formed in a columnar shape having a diameter larger than that of the collection tube main body 10, and a cylindrical protruding portion 12b protrudes from the back surface 12a. The cylindrical projecting portion 12 b is formed so that its outer diameter is the same as the inner diameter of the collecting tube body 10 so as to be fitted into the opening 10 a of the collecting tube body 10. Further, an inflow hole 22 penetrating from the front surface to the back surface is formed in the lid member, and the air can flow into the adsorbent storage chamber 10b of the collection tube main body 10 from the inflow hole 22. .

フィルタ１４は、図２に示すようにポリエチレンから成り、捕集管本体１０の吸着剤収容室１０ｂの形状に合わせて形成された円盤状の基台部１４ａと、基台部１４ａの表面中心から突出する円柱状の突出部１４ｂと、から構成されている。この突出部１４ｂの外径は、流入孔２２及び流出孔２０よりも大径に形成されている。   The filter 14 is made of polyethylene as shown in FIG. 2, and is formed from a disc-shaped base portion 14a formed in accordance with the shape of the adsorbent storage chamber 10b of the collection tube main body 10 and the surface center of the base portion 14a. And a cylindrical protrusion 14b that protrudes. The projecting portion 14 b has an outer diameter larger than the inflow hole 22 and the outflow hole 20.

吸着剤収容室１０ｂに充填される吸着剤１６としては、シリカゲル、活性炭及びスチレンジビニルベンゼン共重合体などの合成吸着剤などを用いることができる。シリカゲルを用いた場合は、回収の際に純水やエタノールなどの極性溶媒を用い、活性炭や合成吸着剤を用いた場合は、回収の際にトルエンや二硫化炭素などの無極性溶媒を用いる。   As the adsorbent 16 filled in the adsorbent storage chamber 10b, synthetic adsorbents such as silica gel, activated carbon, and styrene divinylbenzene copolymer can be used. When silica gel is used, a polar solvent such as pure water or ethanol is used at the time of recovery, and when activated carbon or a synthetic adsorbent is used, a nonpolar solvent such as toluene or carbon disulfide is used at the time of recovery.

本実施例に係る捕集管は、捕集管本体１０の突出部１８を吸引ポンプの吸引チューブに接続して、吸引ポンプによって吸引を行なうことによって、流入孔２２から大気を吸着剤収容室１０ｂに吸引して、ホルムアルデヒドなどの被吸着物質を吸着させて、流出孔２０から大気を流出させることによって、被吸着物質のサンプリングを行なうことができる。吸着剤に吸着された被吸着物質の回収は、従来と同様に注射器によって溶媒を流入孔２２から吸着剤収容室１０ｂ内に注入することによって行なわれるが、本実施例に係る捕集管においては、流入孔２２から流入された溶媒がフィルタ１４の突出部１４ｂに当たり、その一部が吸着剤収容室１０ｂの周囲まで至るので、低速で注入しなくても被吸着物質の回収を十分に行うことができる。   The collecting tube according to the present embodiment connects the protruding portion 18 of the collecting tube main body 10 to the suction tube of the suction pump and performs suction by the suction pump, whereby the atmosphere is sucked from the inflow hole 22 into the adsorbent storage chamber 10b. The adsorbed substance can be sampled by sucking the adsorbed substance and adsorbing the adsorbed substance such as formaldehyde and letting out the air from the outflow hole 20. The recovery of the adsorbed substance adsorbed by the adsorbent is performed by injecting the solvent from the inflow hole 22 into the adsorbent accommodating chamber 10b by a syringe as in the conventional case. In the collection tube according to the present embodiment, Since the solvent flowing in from the inflow hole 22 hits the protrusion 14b of the filter 14 and a part thereof reaches the periphery of the adsorbent storage chamber 10b, the substance to be adsorbed can be sufficiently recovered without being injected at a low speed. Can do.

本実施例に係る捕集管に用いられるフィルタの第２の態様を図３に示す。この第２の態様のフィルタ２４は、円錐状に形成されている。さらに、フィルタの第３の態様を捕集管に設置した状態の側面断面図を図４に示す。この第３の態様のフィルタ２６は、吸着剤収容室１０ｂよりも小径で、かつ流出孔２０よりも大径な円柱状に形成されている。   The 2nd aspect of the filter used for the collection pipe | tube which concerns on a present Example is shown in FIG. The filter 24 of the second aspect is formed in a conical shape. Furthermore, FIG. 4 shows a side cross-sectional view of a state in which the third mode of the filter is installed in the collection tube. The filter 26 according to the third aspect is formed in a columnar shape having a smaller diameter than the adsorbent accommodating chamber 10 b and a larger diameter than the outflow hole 20.

本発明に係る捕集管の実施例の側面断面図である。It is side surface sectional drawing of the Example of the collection pipe | tube which concerns on this invention. 本実施例に係る捕集管に用いられるフィルタの第１の形態の斜視図である。It is a perspective view of the 1st form of the filter used for the collection pipe concerning this example. 本実施例に係る捕集管に用いられるフィルタの第２の形態の斜視図である。It is a perspective view of the 2nd form of the filter used for the collection pipe concerning this example. 本実施例に係る捕集管に用いられるフィルタの第３の形態が捕集管に設置された状態の側面断面図である。It is side surface sectional drawing of the state in which the 3rd form of the filter used for the collection pipe | tube which concerns on a present Example was installed in the collection pipe | tube. 従来の捕集管の側面断面図である。It is side surface sectional drawing of the conventional collection pipe. 従来の捕集管よって大気の吸引を行なう状態を示す図である。It is a figure which shows the state which attracts | sucks air | atmosphere with the conventional collection pipe | tube.

符号の説明Explanation of symbols

１０ｂ 吸着剤収容室
１４ フィルタ
１６ 吸着剤
２０ 流出孔
２２ 流入孔 10b Adsorbent storage chamber 14 Filter 16 Adsorbent 20 Outflow hole 22 Inflow hole

Claims (1)

吸着剤が収容される吸着剤収容室と、
該吸着剤収容室に気体が流入可能な流入孔と、
該流入孔と対向する位置に形成され、前記吸着剤収容室内の気体が流出可能な流出孔と、
前記吸着剤収容室内の前記流出孔の位置に設けられ、前記吸着剤が通過不能なフィルタと、
を備え、
前記流入孔から前記吸着剤収容室内に溶媒を注入して前記溶媒とともに前記流出孔から被捕集物質を流出させることにより、前記被捕集物質を回収する捕集管において、
前記流入孔から流入された前記溶媒と当たることによって前記溶媒の一部が前記吸着剤収容室の周囲まで至るように、前記フィルタの前記流出孔の位置が流入孔に向かって突出していることを特徴とする捕集管。 An adsorbent storage chamber in which the adsorbent is stored;
An inflow hole through which gas can flow into the adsorbent storage chamber;
An outflow hole formed at a position opposite to the inflow hole, through which the gas in the adsorbent storage chamber can flow out;
A filter which is provided at the position of the outflow hole in the adsorbent storage chamber and through which the adsorbent cannot pass;
With
In a collection tube for collecting the collected material by injecting a solvent from the inflow hole into the adsorbent accommodating chamber and causing the collected material to flow out from the outflow hole together with the solvent,
The position of the outflow hole of the filter protrudes toward the inflow hole so that a part of the solvent reaches the periphery of the adsorbent storage chamber by hitting the solvent flowing in from the inflow hole. Characteristic collection tube.
JP2006198544A 2006-07-20 2006-07-20 Collection tube and filter used therefor Active JP4914138B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006198544A JP4914138B2 (en) 2006-07-20 2006-07-20 Collection tube and filter used therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006198544A JP4914138B2 (en) 2006-07-20 2006-07-20 Collection tube and filter used therefor

Publications (2)

Publication Number Publication Date
JP2008026130A JP2008026130A (en) 2008-02-07
JP4914138B2 true JP4914138B2 (en) 2012-04-11

Family

ID=39116910

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006198544A Active JP4914138B2 (en) 2006-07-20 2006-07-20 Collection tube and filter used therefor

Country Status (1)

Country Link
JP (1) JP4914138B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6715088B2 (en) * 2016-05-31 2020-07-01 株式会社安藤・間 Stable isotope ratio analysis sample collection method, stable isotope ratio analysis method, production area discrimination method, and stable isotope ratio analysis sample collection device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0776767B2 (en) * 1988-12-10 1995-08-16 株式会社日立製作所 Column for liquid chromatography
JP3479412B2 (en) * 1995-07-31 2003-12-15 株式会社東芝 Amine collector, amine collector, and method for collecting and analyzing amines
JPH1010106A (en) * 1996-06-27 1998-01-16 Sekisui Chem Co Ltd Filter for liquid chromatography
JP3315657B2 (en) * 1998-06-22 2002-08-19 積水化学工業株式会社 Liquid chromatography filter, liquid chromatography column, and method for measuring hemoglobins
JP3650747B2 (en) * 2001-10-02 2005-05-25 柴田科学株式会社 Sampler for collected substances in the atmosphere and sampling method thereof
JP3873058B2 (en) * 2004-01-20 2007-01-24 株式会社住化分析センター Carbonyl compound trapping material and method for quantifying carbonyl compound using the material

Also Published As

Publication number Publication date
JP2008026130A (en) 2008-02-07

Similar Documents

Publication Publication Date Title
ES2222153T3 (en) ABSORBENT CARTRIDGE FOR SOLID PHASE EXTRACTION.
ES2688270T3 (en) Micro fluid sample management device
ES2650612T3 (en) Double layer membrane based tube for sample collection
US8608816B2 (en) Fluid filtration device and system
JP4370282B2 (en) Adsorbent collection material based on polyorganosiloxane
JPH04131438U (en) Pipette device including a fixing cone for holding a slip-on pipette tip
JP2009529386A5 (en)
JPH01133906U (en)
US20090218287A1 (en) Solid phase extraction apparatuses and methods
JP2016500279A5 (en)
JP2001510791A5 (en)
CN102015006A (en) Canister having fluid flow control
JP4914138B2 (en) Collection tube and filter used therefor
JP2006511340A5 (en)
JP2010513915A (en) Needle and apparatus for solid-phase microextraction
FR2458305A1 (en) FILTER FOR MEDICAL FLUIDS AND ADMINISTRATION DEVICE COMPRISING SUCH A FILTER
JP2018091868A (en) Plasma separation using drop of blood
CN207951036U (en) A kind of electronic cigarette adsorbent equipment
US10001431B2 (en) Extraction device
US20040083826A1 (en) Gas borne substance sampling device
US9766168B2 (en) Acoustic particulate concentration methods and system
JP6110116B2 (en) Gas component adsorption tube, gas component collection device, and gas component collection method.
CN212545537U (en) Smoke guiding and oil filtering structure and filter cigarette holder comprising same
WO2005044172A3 (en) Dialysis cartridge
CN206491332U (en) A kind of longitudinal filtration of modified cigarette

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20090416

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20110714

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20110726

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20110922

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20111018

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20111214

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20120110

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20120120

R150 Certificate of patent or registration of utility model

Ref document number: 4914138

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20150127

Year of fee payment: 3

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250