JP6803400B2 - 固相マイクロ抽出装置上に吸着された分析物を脱着および検出するためのシステムおよび方法 - Google Patents
固相マイクロ抽出装置上に吸着された分析物を脱着および検出するためのシステムおよび方法 Download PDFInfo
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/62—Detectors specially adapted therefor
- G01N30/72—Mass spectrometers
- G01N30/7233—Mass spectrometers interfaced to liquid or supercritical fluid chromatograph
- G01N30/724—Nebulising, aerosol formation or ionisation
- G01N30/7266—Nebulising, aerosol formation or ionisation by electric field, e.g. electrospray
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- 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
- G01N1/40—Concentrating samples
- G01N1/405—Concentrating samples by adsorption or absorption
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- 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
- G01N1/44—Sample treatment involving radiation, e.g. heat
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/71—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited
- G01N21/714—Sample nebulisers for flame burners or plasma burners
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
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- H—ELECTRICITY
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- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J49/00—Particle spectrometers or separator tubes
- H01J49/02—Details
- H01J49/04—Arrangements for introducing or extracting samples to be analysed, e.g. vacuum locks; Arrangements for external adjustment of electron- or ion-optical components
- H01J49/0431—Arrangements for introducing or extracting samples to be analysed, e.g. vacuum locks; Arrangements for external adjustment of electron- or ion-optical components for liquid samples
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J49/00—Particle spectrometers or separator tubes
- H01J49/02—Details
- H01J49/04—Arrangements for introducing or extracting samples to be analysed, e.g. vacuum locks; Arrangements for external adjustment of electron- or ion-optical components
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- G—PHYSICS
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- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
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Description
本開示は、固相マイクロ抽出装置上に吸着された分析物を脱着および検出するためのシステムおよび方法に関する。
以下の段落は、議論されたものが先行技術であるかまたは当業者の知識の一部であることを認めるものではない。
以下の部分は、本明細書を読者に紹介することを意図しているが、発明を限定するものではない。1つまたは複数の発明は、以下にまたは本明細書の他の部分に記載された装置の要素または方法の工程の組み合わせまたは部分組み合わせに存在し得る。本発明者らは、本明細書に開示された発明を特許請求の範囲に記載していなくても、これらの発明に対する権利を放棄または否認しない。
一般に、本開示は、固相マイクロ抽出(SPME)装置上に吸着された分析物を脱着および検出するためのシステムおよび方法を提供する。このシステムおよび方法は、脱着チャンバ内の脱着溶液を、実質的に希釈されていない液体プラグとして検出装置のフローインジェクタに搬送する。
Claims (10)
- 固相マイクロ抽出(SPME)装置上に吸着された分析物を脱着および検出するためのシステムであって、
約50μL未満のボイド容積を規定し、前記SPME装置を収容するような大きさに構成された脱着チャンバと、
前記脱着チャンバと流体接続されているフローインジェクタとを備え、前記脱着チャンバと前記フローインジェクタとは、少なくともフロー隔離流体コネクタによって流体的に接続され、
前記フローインジェクタと流体接続されている溶媒源と、
流体スイッチとを備え、
前記流体スイッチは、
(a)脱着位置において、前記脱着チャンバ内の脱着溶液を隔離すると共に、前記フローインジェクタから前記溶媒を噴霧することを可能にするように構成され、
(b)検出位置において、前記フローインジェクタと前記脱着チャンバとの間の流体接続を維持すると共に、溶媒流を遮断して前記フローインジェクタから前記溶媒源を隔離することによって、前記フロー隔離流体コネクタを介して、前記脱着チャンバ内の前記脱着溶液を実質的に希釈されていない液体プラグとして前記フローインジェクタに搬送するように構成される、システム。 - 前記フロー隔離流体コネクタは、(a)前記流体スイッチが前記脱着位置に位置し且つ(b)前記溶媒が前記溶媒源から前記フローインジェクタに流れる時に、前記脱着チャンバからの脱着溶液が前記フローインジェクタに流れる前記溶媒に拡散することを低減または回避するような寸法に構成されている、請求項1に記載のシステム。
- 前記フロー隔離流体コネクタは、前記脱着チャンバの断面よりも小さな断面を有する、または、前記フロー隔離流体コネクタの長さは、前記フロー隔離流体コネクタの一端を通過する液体が前記フロー隔離流体コネクタの他端の液体に影響を与えないように前記フロー隔離流体コネクタの前記断面よりも十分に大きく、またはその両方である、請求項2に記載のシステム。
- 前記フロー隔離流体コネクタは、収容されたSPME装置によって流体的に封止されるような大きさに構成され、脱着中に前記脱着チャンバを前記フローインジェクタから流体的に隔離する、請求項1に記載のシステム。
- 約50μL未満のボイド容積を規定すると共に、前記SPME装置を収容するような大きさに構成された少なくとも1つの追加の脱着チャンバをさらに備え、
前記追加の脱着チャンバは、他の脱着チャンバと並列に接続され、収容された追加のSPME装置によって流体的に隔離されるような大きさに構成された追加のフロー隔離流体コネクタに流体的に接続され、および前記追加のSPME装置が前記追加のフロー隔離流体コネクタを流体的に隔離していない場合に、前記フローインジェクタに流体的に接続される、請求項4に記載のシステム。 - 前記システムは、前記脱着チャンバよりも低い圧力で動作する検出装置を含み、
前記フローインジェクタは、エレクトロスプレーニードル、サーモスプレーネブライザ、マイクロエレクトロスプレーニードル、大気圧化学イオン化ネブライザ、イオン移動度分光分析ネブライザ、誘導結合プラズマネブライザ、または前記溶媒流を前記検出装置に向かって駆動するための圧力差を生成するシステムである、請求項1に記載のシステム。 - 前記検出装置は、前記フローインジェクタの下流に配置されており、脱着された前記分析物を検出するための質量分析計、イオン移動度分光計、または電気化学もしくは光学分光法に基づいた検出装置である、請求項6に記載のシステム。
- 前記溶媒源は、前記溶媒に圧力を加えることができるポンプを介して、前記フローインジェクタに流体的に接続され、前記溶媒を前記フローインジェクタに搬送する、請求項1に記載のシステム。
- 前記フローインジェクタからの溶媒を霧化するためのガス源をさらに備える、請求項1に記載のシステム。
- 収容されたSPME装置を振動させるための攪拌器、前記脱着チャンバを加熱するための加熱器、またはその両方をさらに含む、請求項1に記載のシステム。
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US201662333934P | 2016-05-10 | 2016-05-10 | |
US62/333,934 | 2016-05-10 | ||
PCT/CA2017/050562 WO2017193213A1 (en) | 2016-05-10 | 2017-05-10 | System and method for desorbing and detecting an analyte sorbed on a solid phase microextraction device |
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WO2020016809A1 (en) * | 2018-07-17 | 2020-01-23 | Dh Technologies Development Pte. Ltd. | Open port probe interfaces |
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US10429362B2 (en) | 2019-10-01 |
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