GB1254684A - Chromatographic peak selector - Google Patents

Chromatographic peak selector

Info

Publication number
GB1254684A
GB1254684A GB08670/70A GB1867070A GB1254684A GB 1254684 A GB1254684 A GB 1254684A GB 08670/70 A GB08670/70 A GB 08670/70A GB 1867070 A GB1867070 A GB 1867070A GB 1254684 A GB1254684 A GB 1254684A
Authority
GB
United Kingdom
Prior art keywords
time
peak
duration
acetaldehyde
starting
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.)
Expired
Application number
GB08670/70A
Inventor
Raymond Annino
William E Jordan
William E Earle
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.)
Schneider Electric Systems USA Inc
Original Assignee
Foxboro 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 Foxboro Co filed Critical Foxboro Co
Publication of GB1254684A publication Critical patent/GB1254684A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
    • G06G7/18—Arrangements for performing computing operations, e.g. operational amplifiers for integration or differentiation; for forming integrals
    • G06G7/184—Arrangements for performing computing operations, e.g. operational amplifiers for integration or differentiation; for forming integrals using capacitive elements
    • G06G7/186—Arrangements for performing computing operations, e.g. operational amplifiers for integration or differentiation; for forming integrals using capacitive elements using an operational amplifier comprising a capacitor or a resistor in the feedback loop
    • G06G7/1865—Arrangements for performing computing operations, e.g. operational amplifiers for integration or differentiation; for forming integrals using capacitive elements using an operational amplifier comprising a capacitor or a resistor in the feedback loop with initial condition setting
    • 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
    • G01N30/8624—Detection of slopes or peaks; baseline correction
    • 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
    • G01N2030/042—Standards
    • G01N2030/045—Standards internal
    • 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
    • G01N30/8665—Signal analysis for calibrating the measuring apparatus

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Computer Hardware Design (AREA)
  • Software Systems (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Treatment Of Liquids With Adsorbents In General (AREA)

Abstract

1,254,684. Chromatography. FOXBORO CO. 20 April, 1970 [2 June, 1969], No. 18670/ 70. Heading B1X. [Also in Division G1 In chromatographic apparatus the time t 2 of emergence from the column of a particular component of interest is predicted from the time t 1 taken for a reference fluid to pass through the column, the ratio of the times t 1 and t 2 being assumed constant. For analysing a person's breath for ethanol a suitable carrier gas is helium and a suitable reference fluid is acetaldehyde which produces a negative peak. In Fig. 1, the output from a thermal conductivity detector 30 is amplified and fed to a recorder 40 through an integrator 36 which is controlled by a "window" pulse to integrate the ethanol peak. The time of starting and duration of the window pulse are respectively proportional to the time of starting and duration of the acetaldehyde peak. Correction for base-line drift is made.
GB08670/70A 1969-06-02 1970-04-20 Chromatographic peak selector Expired GB1254684A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US82968269A 1969-06-02 1969-06-02

Publications (1)

Publication Number Publication Date
GB1254684A true GB1254684A (en) 1971-11-24

Family

ID=25255231

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08670/70A Expired GB1254684A (en) 1969-06-02 1970-04-20 Chromatographic peak selector

Country Status (6)

Country Link
US (1) US3717028A (en)
JP (1) JPS5140832B1 (en)
DE (1) DE2027079C3 (en)
FR (1) FR2052278A5 (en)
GB (1) GB1254684A (en)
NL (1) NL153332B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2171328A (en) * 1985-01-07 1986-08-28 Loughborough Consult Ltd Gas chromatography

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2245815A1 (en) * 1972-09-19 1974-03-28 Bodenseewerk Perkin Elmer Co METHOD AND DEVICE FOR IDENTIFYING AND EVALUATING PEAKS IN CHROMATOGRAMS
US3896659A (en) * 1973-08-27 1975-07-29 Bacardi And Company Ltd Method for determining the ethanol content of alcoholic beverages
US4112302A (en) * 1977-03-02 1978-09-05 Systems, Science And Software Gas monitor
US4307453A (en) * 1977-12-19 1981-12-22 Phillips Petroleum Company Sloping baseline compensation for a chromatographic analyzer
US4170893A (en) * 1977-12-19 1979-10-16 Phillips Petroleum Company Sloping baseline compensation for a chromatographic analyzer
JPS54103061U (en) * 1977-12-29 1979-07-20
NL8004487A (en) * 1980-08-06 1982-03-01 Chemical Lab Instr DEVICE FOR MEASURING ONE OR MORE POLLUTANT COMPONENTS IN A PARTICULAR ATMOSPHERE.
JPS5982197U (en) * 1982-11-25 1984-06-02 大東製材株式会社 lattice shutters
JPH0718853B2 (en) * 1984-05-15 1995-03-06 住友化学工業株式会社 Data processing method in chromatography
US4648260A (en) * 1985-05-20 1987-03-10 Mark Telephone Products, Inc. Helium detector
US4787239A (en) * 1988-01-11 1988-11-29 Mark Products, Inc. Sensor for hand held gas chromatograph
FI82553C (en) * 1989-07-04 1991-03-11 Valtion Teknillinen Chromatographic separation method and apparatus
US5032721A (en) * 1990-06-01 1991-07-16 Environmental Technologies Group, Inc. Acid gas monitor based on ion mobility spectrometry
US5234838A (en) * 1990-04-17 1993-08-10 Environmental Technologies Group, Inc. Ammonia monitor based on ion mobility spectrometry with selective dopant chemistry
US5095206A (en) * 1990-06-01 1992-03-10 Environmental Technologies Group, Inc. Method and apparatus for improving the specificity of an ion mobility spectrometer utillizing sulfur dioxide dopant chemistry
US5283199A (en) * 1990-06-01 1994-02-01 Environmental Technologies Group, Inc. Chlorine dioxide monitor based on ion mobility spectrometry with selective dopant chemistry
JPH06138115A (en) * 1991-04-25 1994-05-20 Shimadzu Corp Sample-component preparative isolation apparatus
US5670054A (en) * 1996-04-04 1997-09-23 Warner Lambert Company Method and system for identification, purification, and quantitation of reaction components
US5827946A (en) * 1997-04-30 1998-10-27 Hewlett-Packard Company Method for sample identification using a locked retention time database
US5939612A (en) * 1998-04-28 1999-08-17 Hewlett-Packard Company Retention time-locked spectral database for target analyte analysis

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126731A (en) * 1964-03-31 R armstrong
US3177138A (en) * 1960-05-02 1965-04-06 Phillips Petroleum Co Process control by gas chromatography
US3301482A (en) * 1964-06-16 1967-01-31 Barber Colman Co Ramp program control system
US3318149A (en) * 1965-09-30 1967-05-09 Peter F Varadi Gas chromatography system
US3559455A (en) * 1968-10-30 1971-02-02 Phillips Petroleum Co Chromatographic analysis

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2171328A (en) * 1985-01-07 1986-08-28 Loughborough Consult Ltd Gas chromatography

Also Published As

Publication number Publication date
US3717028A (en) 1973-02-20
DE2027079A1 (en) 1970-12-10
FR2052278A5 (en) 1971-04-09
DE2027079C3 (en) 1979-07-12
NL7000782A (en) 1970-12-04
DE2027079B2 (en) 1978-11-02
NL153332B (en) 1977-05-16
JPS5140832B1 (en) 1976-11-06

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