JP6437005B2 - 多次元液体分析システムにおける体積フローの調整 - Google Patents
多次元液体分析システムにおける体積フローの調整 Download PDFInfo
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
- B01D15/08—Selective adsorption, e.g. chromatography
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- B01D15/22—Selective adsorption, e.g. chromatography characterised by constructional or operational features relating to the construction of the column
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
- B01D15/08—Selective adsorption, e.g. chromatography
- B01D15/42—Selective adsorption, e.g. chromatography characterised by the development mode, e.g. by displacement or by elution
- B01D15/424—Elution mode
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- G01N30/02—Column chromatography
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- G01N30/02—Column chromatography
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Description
Fc≦VL/(T2a+T2e)
(式中、
Fc=第2分割出口流28の制御された流量
VL=試料ループの容積
T2a=第2次元カラム34の分析時間
T2e=第2次元カラム34の平衡化時間
である)。
Claims (14)
- 液体移動相を、第1次元流出流量を有する第1次元流出流に分離するための第1分離機構を含む第1次元分析システムと、
前記第1次元流出流を、第1分割出口流と、第1圧力を有する第2分割出口流とに分離するためのフロースプリッタと、
前記第2分割出口流を第2次元流出流に分離するための第2分離機構と、前記第2分割出口流からの試料を前記第2分離機構に向けるインジェクションバルブとを含み、前記インジェクションバルブが、前記第2分割出口流を受容する入口ポートと、出口ポートと、前記第2分割出口流又は前記第2分離機構と流体連通するように交互に位置付け可能な流れチャネルを備える第1及び第2個別試料ループとを有する、第2次元分析システムと、
出口流路に沿うバルブを備える流量計量デバイスであって、
前記バルブは、
(i)ステータ面と、ステータ内を前記出口流路に沿って延在し、第1ステータポートから前記ステータ面に開口する第1入口ステータ通路と、前記ステータ内を前記出口流路に沿って延在し、前記第1ステータポートから離間した第2ステータポートから前記ステータ面に開口する第1排出通路とを有するステータと、前記ステータ内を排出路に沿って延在し、第3ステータポートから前記ステータ面に開口する第2排出通路と、
(ii)接触面において前記ステータ面と流体密封接触したロータ面を有し、前記ロータ面が、前記接触面と流体連通して液体アリコートを受容するように構成されたシャトルを含む、ロータであって、前記シャトルを、前記第1ステータポートにおいて前記出口流路と流体連通するように前記シャトルを配列する第1ステーション、及び、前記第2ステータポートにおいて前記出口流路と流体連通するように前記シャトルを配列する第2ステーションを含む、軸周方向に離間された複数のステーション内へ順次移動するロータと
を含み、前記第2及び第3ステータポートが、少なくとも前記シャトルが前記第2ステーションに位置付けられているときに、互いに流体連通する、流量計量デバイスと、
前記インジェクションバルブの前記出口ポートから前記第2分割出口流を受容する流量計量デバイスであって、指定された時間内において前記出口流路に沿って前記流量計量デバイス内を許容された容積の前記第2分割出口流によって決まる所定の第2分割出口流量で前記フロースプリッタから前記第2分割出口流を許容するように所望の時間間隔で前記出口流路を開閉するように前記バルブを制御するようにプログラムされた計量コントローラと
を備える多次元液体分析システム。 - 前記第1排出通路を介して前記シャトルから前記液体アリコートを排出する排出手段を含む、請求項1に記載の多次元液体分析システム。
- 前記第1及び第2試料ループがそれぞれ、分析のために前記第2分離機構により必要とされる前記第2分割出口流の注入容積以上の対応する第1及び第2試料ループ容積を規定する、請求項1に記載の多次元液体分析システム。
- 前記第1圧力が、少なくとも1キロパスカルである、請求項1に記載の多次元液体分析システム。
- 前記第1圧力が、1〜10,000キロパスカルの間である、請求項4に記載の多次元液体分析システム。
- 第2試料流れチャネルが前記第2分割出口流と流体連通しているとき、第1試料流れチャネルが前記第2分離機構と流体連通する、請求項1に記載の多次元液体分析システム。
- 前記フロースプリッタからの第1分割出口流量が、前記第1次元流出流量と前記第2分割出口流の流量との差として規定される、請求項1に記載の多次元液体分析システム。
- 液体試料を分析する方法であって、
(a)前記液体試料を、第1ポンプで、前記液体試料の化学成分を同定するための第1クロマトグラフィカラムを有する第1次元分析システムであって、第1次元流出流量で第1次元液体流出流を生じさせる第1次元分析システムに圧送することと、
(b)前記第1次元液体流出流を、第1分割出口流と、少なくとも1キロパスカルの第1圧力を有し、前記第1ポンプにより動かされる第2分割出口流とに分離することと、
(c)所望の時間間隔で前記第2分割出口流に沿う出口流路を選択的に開閉しそれにより、第2分割出口流量を制御するように、コントローラから流量計量デバイスへの出力信号によって、前記コントローラにより前記流量計量デバイスを制御することと、
(d)前記第2分割出口流を、前記液体試料の化学成分を同定するための第2クロマトグラフィカラムを有する第2次元分析システムであって、前記第2分割出口流を受容する入口ポートと、出口ポートと、前記第2分割出口流又は前記第2クロマトグラフィカラムと流体連通するように交互に位置付け可能な流れチャネルを備えそれぞれが対応する第1及び第2試料ループ容積を規定する第1及び第2個別試料ループとを有するインジェクションバルブを含む第2次元分析システムを通るように向けることと
を含む方法であって、
前記第2分割出口流量が、前記第2クロマトグラフィカラムの分析時間及び平衡化時間の合計である指定された時間内に、前記第2分割出口流が前記第1及び第2試料ループ容積の対応する一方を充填するのを許容されるのに十分である、方法。 - 前記流量計量デバイスが、液体アリコートを受容するように構成されたシャトルを有するロータを含み、前記ロータが、前記シャトルを、前記出口流路に沿う前記第2分割出口流から前記液体アリコートを受容するように前記シャトルを配列する第1ステーション、及び、前記出口流路に沿う前記第2分割出口流に前記液体アリコートを排出するように前記シャトルを配列する第2ステーションを含む離間された複数のステーションへ、対応して移動させるように移動可能である、請求項8に記載の方法。
- 前記第2分割出口流が、前記シャトルによって、前記流量計量デバイスで不連続的に接続される、請求項9に記載の方法。
- 前記出口流路が、前記シャトルを前記第1ステーションに位置付けることによって開かれる、請求項9に記載の方法。
- 前記インジェクションバルブの前記出口ポートからの前記第2分割出口流を、前記流量計量デバイスに向けることを含む、請求項9に記載の方法。
- 前記液体アリコートをガスで移動させることによって、前記液体アリコートを前記シャトルから排出することを含む、請求項9に記載の方法。
- 印加された真空圧で、前記液体アリコートを前記シャトルから移動させることを含む、請求項9に記載の方法。
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PCT/US2015/015643 WO2015123427A1 (en) | 2014-02-12 | 2015-02-12 | Volumetric flow regulation in multi-dimensional liquid analysis systems |
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GB201613247D0 (en) | 2016-09-14 |
WO2015123427A1 (en) | 2015-08-20 |
GB2544135A (en) | 2017-05-10 |
US20150226711A1 (en) | 2015-08-13 |
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US20170184553A1 (en) | 2017-06-29 |
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