JP4971592B2 - 高圧勾配システムのための逆流防止 - Google Patents
高圧勾配システムのための逆流防止 Download PDFInfo
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- G01N30/02—Column chromatography
- G01N30/26—Conditioning of the fluid carrier; Flow patterns
- G01N30/28—Control of physical parameters of the fluid carrier
- G01N30/32—Control of physical parameters of the fluid carrier of pressure or speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
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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
- B01D15/10—Selective adsorption, e.g. chromatography characterised by constructional or operational features
- B01D15/16—Selective adsorption, e.g. chromatography characterised by constructional or operational features relating to the conditioning of the fluid carrier
- B01D15/166—Fluid composition conditioning, e.g. gradient
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- G—PHYSICS
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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
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/16—Injection
- G01N30/22—Injection in high pressure liquid systems
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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
- G01N30/02—Column chromatography
- G01N30/26—Conditioning of the fluid carrier; Flow patterns
- G01N30/28—Control of physical parameters of the fluid carrier
- G01N30/32—Control of physical parameters of the fluid carrier of pressure or speed
- G01N2030/322—Control of physical parameters of the fluid carrier of pressure or speed pulse dampers
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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
- G01N30/02—Column chromatography
- G01N30/26—Conditioning of the fluid carrier; Flow patterns
- G01N30/28—Control of physical parameters of the fluid carrier
- G01N30/32—Control of physical parameters of the fluid carrier of pressure or speed
- G01N2030/328—Control of physical parameters of the fluid carrier of pressure or speed valves, e.g. check valves of pumps
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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
- G01N30/02—Column chromatography
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/06—Preparation
- G01N30/10—Preparation using a splitter
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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
- G01N30/02—Column chromatography
- G01N30/26—Conditioning of the fluid carrier; Flow patterns
- G01N30/28—Control of physical parameters of the fluid carrier
- G01N30/36—Control of physical parameters of the fluid carrier in high pressure liquid systems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7837—Direct response valves [i.e., check valve type]
- Y10T137/7838—Plural
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/87571—Multiple inlet with single outlet
- Y10T137/87676—With flow control
- Y10T137/87684—Valve in each inlet
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Description
k’=(Vr−V0)/V0 (式1)
上式において、Vr=保持体積、またV0=カラムボイド体積である。
Claims (17)
- 高圧液体クロマトグラフィ用の高圧勾配ポンプの組成確度を向上させる方法であって、
第1組のポンプを有する第1の溶媒ラインおよび第2組のポンプを有する第2の溶媒ラインを、前記第1組のポンプが第1の溶媒リザーバと流体連通しており、かつ前記第2組のポンプが第2の溶媒リザーバと流体連通するようにして設けるステップと、
前記第1組のポンプを第1の逆流防止器と流体連通している第1のパルスダンプナーに接続し、かつ前記第2組のポンプを第2の逆流防止器と流体連通している第2のパルスダンプナーに接続するステップであって、前記逆流防止器は、フローに対するフロー抵抗を提供し、かつ前記パルスダンプナーの一貫した動作を保証する前記パルスダンプナーに保持される流体への圧力荷重を維持することによって、前記溶媒ライン間の流体的クロストークを実質的に低下させる、前記接続するステップと、
溶媒組成を伝達するように前記逆流防止器を混合用T継手に接続するステップとを含み、前記逆流防止器が、前記逆流防止器と前記混合用T継手との間の距離を最小にすることによって、遅延体積を低下させるために前記混合用T継手内に組み込まれている、方法。 - 前記逆流防止器が、フローに対するフロー抵抗を提供し、かつポンプ伝達サイクルの間に圧縮された前記パルスダンプナーに蓄えられた流体を維持することによって、前記パルスダンプナーの体積と比べて実質的により小さいストローク体積で正確な組成伝達を可能としている、請求項1に記載の高圧勾配ポンプの組成確度を向上させる方法。
- 前記逆流防止器が、フローに対するフロー抵抗を提供し、かつポンプ伝達サイクルの間に圧縮された前記パルスダンプナーに蓄えられた流体を維持することによって、前記パルスダンプナーの体積と実質的に等しいストローク体積で正確な組成伝達を可能としている、請求項1に記載の高圧勾配ポンプの組成確度を向上させる方法。
- 前記組み込まれている逆流防止器が、バルブからなる逆圧調節のための逆圧調節器を有している、請求項1に記載の高圧勾配ポンプの組成確度を向上させる方法。
- 前記逆圧調節器が、選択された固定抵抗を有する、請求項4に記載の高圧勾配ポンプの組成確度を向上させる方法。
- 高圧液体クロマトグラフィ装置であって、
第1のチェックバルブと流体連通している第1組のポンプおよび第2のチェックバルブと流体連通している第2組のポンプと、
第1の逆流防止器と流体連通している第1のパルスダンプナーおよび第2の逆流防止器と流体連通している第2のパルスダンプナーとを備え、前記第1および第2の逆流防止器は、フローに対するフロー抵抗を提供し、かつ前記第1および第2のパルスダンプナーの一貫した動作を保証する前記第1および第2のパルスダンプナーに保持される流体への圧力荷重を維持することによって、前記溶媒ライン間の流体的クロストークを実質的に低下させ、前記高圧液体クロマトグラフィ装置はさらに、
前記第1および第2の逆流防止器と流体連通しており、かつクロマトグラフィカラムと流体連通しているベントバルブと流体連通している混合用T継手を備え、前記第1および第2の逆流防止器が、前記第1および第2の逆流防止器と前記混合用T継手との間の距離を最小にすることによって、遅延体積を低下させるために前記混合用T継手内に組み込まれている、高圧液体クロマトグラフィ装置。 - 前記逆流防止器は、選択された固定抵抗を有する逆圧調節器を有する、請求項6に記載の高圧液体クロマトグラフィ装置。
- 前記逆流防止器が、フローに対するフロー抵抗を提供し、かつポンプ伝達サイクルの間に圧縮された前記パルスダンプナーに蓄えられた流体を維持することによって、前記パルスダンプナーの体積と実質的に等しいストローク体積で正確な組成伝達を可能としている、請求項6に記載の高圧液体クロマトグラフィ装置。
- 前記組み込まれている逆流防止器が、バルブからなる逆圧調節のための逆圧調節器を有している、請求項6に記載の高圧液体クロマトグラフィ装置。
- 前記逆流防止器が、フローに対するフロー抵抗を提供し、かつポンプ伝達サイクルの間に圧縮された前記パルスダンプナーに蓄えられた流体を維持することによって、前記パルスダンプナーの体積と比べて実質的により小さいストローク体積で正確な組成伝達を可能としている、請求項6に記載の高圧液体クロマトグラフィ装置。
- 第1の溶媒伝達ライン内にあって第1の溶媒リザーバと流体連通している第1組のポンプおよび第2の溶媒伝達ライン内にあって第2の溶媒リザーバと流体連通している第2組のポンプと、
前記第1組のポンプおよび前記第2組のポンプによって発生する流量じょう乱を低減させるようなパルスダンプニングのための手段と、
前記溶媒伝達ライン間の流体的クロストークを排除するような逆流防止のための手段と、
遅延体積が最小化されるように、逆流防止のための前記手段を混合用T継手に組み込む手段と、
を備える高圧液体クロマトグラフィ装置。 - バルブからなる逆圧調節のための手段をさらに備える請求項11に記載の装置。
- 流出口、第1の流入口および第2の流入口を有する混合用T継手と、
前記第1および第2の流入口の内部に組み込まれた逆流防止器であって、選択されたコイルスプリングおよびバルブシートの内部に取り付けられたアクチュエータを有しており、前記選択されたコイルスプリングは、前記アクチュエータに対して選択された圧力を作用させている逆流防止器と、
を備える高圧液体クロマトグラフィ装置。 - 前記選択された圧力が、0MPa(0psi)と13.8MPa(2000psi)の間の範囲にある請求項13に記載の高圧液体クロマトグラフィ装置。
- 前記逆流防止器の前記混合用T継手への組み込みによってシステム体積を低下させている請求項13に記載の高圧液体クロマトグラフィ装置。
- 前記逆流防止器は、クロマトグラフィシステム内のパルスダンプナーがシステムポンプのチェックバルブの一貫した性能を用いて効率よく機能することを保証する、選択された固定抵抗を有する請求項13に記載の高圧液体クロマトグラフィ装置。
- 流出口、第1の流入口および第2の流入口を有する混合用T継手と、
前記第1および第2の流入口の内部に組み込まれた逆流防止器であって、バルブシートの内部に取り付けられていて流体フローを前進方向に制限するボールベアリングを有している逆流防止器と、
を備える高圧液体クロマトグラフィ装置。
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US10/314,725 | 2002-12-09 | ||
US10/314,725 US6780315B2 (en) | 2002-12-09 | 2002-12-09 | Backflow prevention for high pressure gradient systems |
PCT/US2003/038376 WO2004052494A1 (en) | 2002-12-09 | 2003-12-02 | Backflow prevention for high pressure gradient systems |
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2002
- 2002-12-09 US US10/314,725 patent/US6780315B2/en not_active Expired - Fee Related
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2003
- 2003-12-02 GB GB0619403A patent/GB2428392B/en not_active Expired - Fee Related
- 2003-12-02 DE DE2003193856 patent/DE10393856T5/de not_active Withdrawn
- 2003-12-02 WO PCT/US2003/038376 patent/WO2004052494A1/en active Application Filing
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GB0619403D0 (en) | 2006-11-08 |
GB2428392A (en) | 2007-01-31 |
JP2006509214A (ja) | 2006-03-16 |
US20040108273A1 (en) | 2004-06-10 |
GB2413775B (en) | 2007-01-24 |
US20050008516A1 (en) | 2005-01-13 |
WO2004052494A1 (en) | 2004-06-24 |
US7754075B2 (en) | 2010-07-13 |
US7396469B2 (en) | 2008-07-08 |
GB0511308D0 (en) | 2005-07-13 |
AU2003293262A1 (en) | 2004-06-30 |
GB2428392B (en) | 2007-09-26 |
US6780315B2 (en) | 2004-08-24 |
GB2413775A (en) | 2005-11-09 |
DE10393856T5 (de) | 2006-02-16 |
US20080251141A1 (en) | 2008-10-16 |
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