UST959004I4 - Chromatographic liquid dispensing inlet and method - Google Patents

Chromatographic liquid dispensing inlet and method Download PDF

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Publication number
UST959004I4
UST959004I4 US05/690,314 US69031476A UST959004I4 US T959004 I4 UST959004 I4 US T959004I4 US 69031476 A US69031476 A US 69031476A US T959004 I4 UST959004 I4 US T959004I4
Authority
US
United States
Prior art keywords
liquid
inlet end
recess
housing
column
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.)
Pending
Application number
US05/690,314
Inventor
Joseph Jack Kirkland
Charles Heritage Dilks, Jr.
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Priority to US05/690,314 priority Critical patent/UST959004I4/en
Application granted granted Critical
Publication of UST959004I4 publication Critical patent/UST959004I4/en
Pending legal-status Critical Current

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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
    • G01N30/16—Injection
    • 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
    • B01D15/14—Selective adsorption, e.g. chromatography characterised by constructional or operational features relating to the introduction of the feed to the apparatus
    • 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
    • G01N30/60—Construction of the column
    • G01N30/6004—Construction of the column end pieces
    • G01N30/6017—Fluid distributors

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  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treatment Of Liquids With Adsorbents In General (AREA)

Abstract

The chromatographic separation efficiency of a sample liquid injected into a resolving zone and eluted through the resolving zone with a liquid carrier or mobile phase is improved if the sample is injected at a point located centrally on the inlet end of the resolving zone and the eluting carrier liquid is applied uniformly across substantially the entire inlet end of the resolving zone surrounding the sample injection point.
To accomplish this, the present invention provides a liquid dispensing inlet for a liquid chromatographic column comprising: a housing having formed therein a recess and first and second channels; each channel connecting the recess to the external surface of the housing, and a dispensing tube for dispensing liquid to a point at the inlet end of the column, the dispensing tube being disposed within the recess with one end connected to the second channel of the housing and the second end being disposed adjacent to the inlet end of the column, the inlet further comprises a dispensing member, in the form of a screen or a porous plate, dispose between the inlet end of the column and the recess in the housing.
US05/690,314 1976-05-26 1976-05-26 Chromatographic liquid dispensing inlet and method Pending UST959004I4 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US05/690,314 UST959004I4 (en) 1976-05-26 1976-05-26 Chromatographic liquid dispensing inlet and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/690,314 UST959004I4 (en) 1976-05-26 1976-05-26 Chromatographic liquid dispensing inlet and method

Publications (1)

Publication Number Publication Date
UST959004I4 true UST959004I4 (en) 1977-06-07

Family

ID=24771987

Family Applications (1)

Application Number Title Priority Date Filing Date
US05/690,314 Pending UST959004I4 (en) 1976-05-26 1976-05-26 Chromatographic liquid dispensing inlet and method

Country Status (1)

Country Link
US (1) UST959004I4 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012160032A1 (en) * 2011-05-26 2012-11-29 Thermo Electron Manufacturing Limited Method and apparatus for improved resolution chromatography
US10092858B2 (en) 2012-05-25 2018-10-09 Thermo Electron Manufacturing Limited Method and apparatus for improved resolution chromatography
US10099158B2 (en) 2011-05-26 2018-10-16 Thermo Electron Manufacturing Limited Method and apparatus for improved resolution chromatography

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012160032A1 (en) * 2011-05-26 2012-11-29 Thermo Electron Manufacturing Limited Method and apparatus for improved resolution chromatography
AU2012260981B2 (en) * 2011-05-26 2015-09-10 Thermo Electron Manufacturing Limited Method and apparatus for improved resolution chromatography
US10099158B2 (en) 2011-05-26 2018-10-16 Thermo Electron Manufacturing Limited Method and apparatus for improved resolution chromatography
US10092858B2 (en) 2012-05-25 2018-10-09 Thermo Electron Manufacturing Limited Method and apparatus for improved resolution chromatography

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