IT1274775B - Metodo e dispositivo per il controllo della portata di gas vettore in apparecchi gascromatografici - Google Patents
Metodo e dispositivo per il controllo della portata di gas vettore in apparecchi gascromatograficiInfo
- Publication number
- IT1274775B IT1274775B ITMI941889A ITMI941889A IT1274775B IT 1274775 B IT1274775 B IT 1274775B IT MI941889 A ITMI941889 A IT MI941889A IT MI941889 A ITMI941889 A IT MI941889A IT 1274775 B IT1274775 B IT 1274775B
- Authority
- IT
- Italy
- Prior art keywords
- flow rate
- appliances
- carrier gas
- control
- gas
- Prior art date
Links
Classifications
-
- 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
-
- 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
- G01N2030/022—Column chromatography characterised by the kind of separation mechanism
- G01N2030/025—Gas chromatography
-
- 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
- G01N30/30—Control of physical parameters of the fluid carrier of temperature
- G01N2030/3084—Control of physical parameters of the fluid carrier of temperature ovens
-
- 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
- G01N2030/324—Control of physical parameters of the fluid carrier of pressure or speed speed, flow rate
-
- 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
- G01N30/86—Signal analysis
- G01N30/8658—Optimising operation parameters
Landscapes
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Measuring Volume Flow (AREA)
- Flow Control (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
L'invenzione concerne un metodo e un dispositivo per controllare la portata di gas vettore (carrier) attraverso un apparecchio gascromatografico con colonna capillare soggetta, a variazioni di temperatura, tramite controllo della pressione di alimentazione con elaborazione computerizzata dell'equazione che regola il fenomeno. Per eliminare errori di introduzione manuale dei parametri del sistema, si prevede il calcolo di una costante rappresentante i detti parametri, effettuato rilevando tutti i valori necessari nel corso di una prova in bianco, e quindi l'utilizzazione di tale costante nell'equazione menzionata per calcolare la pressione di volta in volta richiesta per avere desiderate condizioni di portata, al variare delle altre condizioni operative del sistema.(Fig. 1).
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI941889A IT1274775B (it) | 1994-09-16 | 1994-09-16 | Metodo e dispositivo per il controllo della portata di gas vettore in apparecchi gascromatografici |
PCT/EP1995/003627 WO1996008718A1 (en) | 1994-09-16 | 1995-09-15 | Method and device for controlling flow rate of carrier gas in gas chromatographic apparatus |
US08/646,308 US5859360A (en) | 1994-09-16 | 1995-09-15 | Method and device for controlling flow rate of carrier gas in chromatographic apparatus |
DE69524060T DE69524060T2 (de) | 1994-09-16 | 1995-09-15 | Verfahren und vorrichtung zur trägergasflussratenregelung in einem chromatographen |
EP95933372A EP0741867B1 (en) | 1994-09-16 | 1995-09-15 | Method and device for controlling flow rate of carrier gas in gas chromatographic apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI941889A IT1274775B (it) | 1994-09-16 | 1994-09-16 | Metodo e dispositivo per il controllo della portata di gas vettore in apparecchi gascromatografici |
Publications (3)
Publication Number | Publication Date |
---|---|
ITMI941889A0 ITMI941889A0 (it) | 1994-09-16 |
ITMI941889A1 ITMI941889A1 (it) | 1996-03-16 |
IT1274775B true IT1274775B (it) | 1997-07-24 |
Family
ID=11369561
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ITMI941889A IT1274775B (it) | 1994-09-16 | 1994-09-16 | Metodo e dispositivo per il controllo della portata di gas vettore in apparecchi gascromatografici |
Country Status (5)
Country | Link |
---|---|
US (1) | US5859360A (it) |
EP (1) | EP0741867B1 (it) |
DE (1) | DE69524060T2 (it) |
IT (1) | IT1274775B (it) |
WO (1) | WO1996008718A1 (it) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5670707A (en) * | 1996-11-01 | 1997-09-23 | Varian Associates, Inc. | Calibration method for a chromatography column |
IT1309602B1 (it) * | 1999-02-25 | 2002-01-24 | Thermoquest Italia Spa | Metodo ed apparecchio per il riallineamento dei picchi in analisigascromatografiche. |
US6865926B2 (en) * | 2000-01-25 | 2005-03-15 | State Of Oregon Acting By And Through The State Board Of Higher Education On Behalf Of Portland State University | Method and apparatus for sample analysis |
US7257987B2 (en) * | 2000-01-25 | 2007-08-21 | State Of Oregon Acting By And Through The State Board Of Higher Education On Behalf Of Portland State University | Method and apparatus for sample analysis |
JP2003521688A (ja) | 2000-01-25 | 2003-07-15 | ザ ステイト オブ オレゴン アクティング バイ アンド スルー ザ ステイト ボード オブ ハイヤー エデュケイション オン ビハーフ オブ ポートランド ステイト ユニヴァーシティ | 分析用のサンプルを濃縮するための方法及び装置 |
US6634211B1 (en) * | 2001-05-16 | 2003-10-21 | Leonid M. Blumberg | Method translation in gas chromatography |
US7010464B2 (en) * | 2001-07-25 | 2006-03-07 | Schneider Automation Inc. | Mobile HVAC cavity test device, method, and computer product |
DE50111054D1 (de) | 2001-12-21 | 2006-11-02 | Agilent Technologies Inc | Verfahren zur Bereitstellung von Volumenströmen von Fluiden |
ITMI20022605A1 (it) * | 2002-12-09 | 2004-06-10 | Thermo Finnigan Italia S P A | Metodo ed apparecchiatura per mantenere costanti i tempi di ritenzione nell'analisi gascromatografica. |
JP4699520B2 (ja) * | 2005-06-14 | 2011-06-15 | パーキンエルマー・ヘルス・サイエンシズ・インコーポレーテッド | クロマトグラフカラムを冷却する方法 |
EP1925935A1 (en) * | 2006-11-23 | 2008-05-28 | Varian B.V. | Gas detection system and method |
NL2002365C2 (en) * | 2008-05-26 | 2011-04-05 | Avantium Holding B V | Flow splitter and reaction assembly. |
EP2256490A1 (en) * | 2009-05-29 | 2010-12-01 | Bruker Chemical Analysis B.V. | Control of gas pressure for gas chromatography |
CN102466662B (zh) * | 2010-11-09 | 2014-07-02 | 中国石油天然气股份有限公司 | 气相色谱-质谱分析的数据处理方法 |
EP2581741B1 (en) * | 2011-10-12 | 2019-09-18 | Agilent Technologies, Inc. | Method transfer by freezing an initially non-controlled parameter |
JP6281450B2 (ja) * | 2014-09-09 | 2018-02-21 | 株式会社島津製作所 | ガスクロマトグラフ及びこれに用いられる流量制御装置 |
JP6711299B2 (ja) * | 2017-02-22 | 2020-06-17 | 株式会社島津製作所 | ガスクロマトグラフ |
US10458961B2 (en) * | 2017-08-01 | 2019-10-29 | Shimadzu Corporation | Gas chromatograph |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4845985A (en) * | 1988-02-17 | 1989-07-11 | Hewlett-Packard Company | Supercritical fluid chromatography |
US4994096A (en) * | 1989-05-09 | 1991-02-19 | Hewlett-Packard Co. | Gas chromatograph having integrated pressure programmer |
JPH087195B2 (ja) * | 1989-12-22 | 1996-01-29 | 株式会社日立製作所 | ガスクロマトグラフ |
JPH04184167A (ja) * | 1990-11-16 | 1992-07-01 | Hitachi Ltd | クロマトグラフ分析装置 |
JPH0769315B2 (ja) * | 1992-04-06 | 1995-07-26 | 株式会社島津製作所 | ガスクロマトグラフ装置 |
-
1994
- 1994-09-16 IT ITMI941889A patent/IT1274775B/it active IP Right Grant
-
1995
- 1995-09-15 US US08/646,308 patent/US5859360A/en not_active Expired - Lifetime
- 1995-09-15 WO PCT/EP1995/003627 patent/WO1996008718A1/en active IP Right Grant
- 1995-09-15 EP EP95933372A patent/EP0741867B1/en not_active Expired - Lifetime
- 1995-09-15 DE DE69524060T patent/DE69524060T2/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE69524060T2 (de) | 2002-07-18 |
ITMI941889A0 (it) | 1994-09-16 |
EP0741867B1 (en) | 2001-11-21 |
EP0741867A1 (en) | 1996-11-13 |
DE69524060D1 (de) | 2002-01-03 |
ITMI941889A1 (it) | 1996-03-16 |
WO1996008718A1 (en) | 1996-03-21 |
US5859360A (en) | 1999-01-12 |
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TA | Fee payment date (situation as of event date), data collected since 19931001 |
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