GB1393000A - Molecule separator - Google Patents

Molecule separator

Info

Publication number
GB1393000A
GB1393000A GB5186172A GB5186172A GB1393000A GB 1393000 A GB1393000 A GB 1393000A GB 5186172 A GB5186172 A GB 5186172A GB 5186172 A GB5186172 A GB 5186172A GB 1393000 A GB1393000 A GB 1393000A
Authority
GB
United Kingdom
Prior art keywords
nozzle
gas
nozzles
pressure
spacing
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
GB5186172A
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.)
Pfizer Health AB
Original Assignee
LKB Produkter AB
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 LKB Produkter AB filed Critical LKB Produkter AB
Publication of GB1393000A publication Critical patent/GB1393000A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/24—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by centrifugal force
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D59/00—Separation of different isotopes of the same chemical element
    • B01D59/10—Separation by diffusion
    • B01D59/18—Separation by diffusion by separation jets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J49/00—Particle spectrometers or separator tubes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J49/00—Particle spectrometers or separator tubes
    • H01J49/02—Details
    • H01J49/10—Ion sources; Ion guns
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H3/00—Production or acceleration of neutral particle beams, e.g. molecular or atomic beams
    • H05H3/02—Molecular or atomic beam generation

Abstract

1393000 Gas separation LKB-PRODUKTER AB 9 Nov 1972 [10 Nov 1971] 51861/72 Heading B1L [Also in Division G3] A single or multi-stage molecular separator for receiving gas from a gas chromatography column and delivering it to the ion source of a mass spectrometer, comprises an evacuation chamber 2, Fig. 1, coaxial inlet and outlet nozzles 3, 5, and means 13, 14 for moving one of the nozzles axially relative to the other to adjust the spacing therebetween. In use, the molecules, mainly carrier gas molecules, of the gas stream flowing across the chamber 2 towards the outlet nozzle 5 are withdrawn by a pump (not shown) connected to the chamber 2, thereby increasing the concentration of the sample and also reducing the pressure of the gas to the pressure of operation of the spectrometer. If it is desired to reduce or increase the gas flow rate through a normal gas chromatography column or to use a capillary column, a shaft 13 is rotated to cause an eccentric 12 thereon to move a sleeve 14 and attached nozzle 3 axially, whereby the spacing between the nozzles is adjusted to suitably modify the pressure-reducing effect of the separator. For coarse adjustment, a locking screw 15 is slackened and the nozzle 3 is moved relative to the sleeve 14. The nozzles may be brought into contact to eliminate the pressure-reducing effect. The nozzle spacing may be adjusted, in use, in accordance with an output measurement signal. Instead of rotatable shaft 13, the adjustable nozzle may be moved by an axially displaceable rod arranged perpendicular or parallel to the nozzle. Sealing is provided by a sharp-edged ring 9 which presses metal membranes 7, 8 against silver seals 10, 11. In an alternative embodiment, Fig. 2 (not shown), the sealing elements 7 to 11 are replaced by a silver seal (18) and a seal (17) of plastics material.
GB5186172A 1971-11-10 1972-11-09 Molecule separator Expired GB1393000A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE14362/71A SE357830B (en) 1971-11-10 1971-11-10

Publications (1)

Publication Number Publication Date
GB1393000A true GB1393000A (en) 1975-05-07

Family

ID=20298967

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5186172A Expired GB1393000A (en) 1971-11-10 1972-11-09 Molecule separator

Country Status (6)

Country Link
US (1) US3803811A (en)
JP (1) JPS4859892A (en)
DE (1) DE2254621A1 (en)
FR (1) FR2159433B1 (en)
GB (1) GB1393000A (en)
SE (1) SE357830B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5620496B2 (en) * 1973-02-12 1981-05-14
JPS5418233Y2 (en) * 1973-03-30 1979-07-10
JPS5063489U (en) * 1973-10-12 1975-06-09
US3957470A (en) * 1973-10-18 1976-05-18 Ernest Fredrick Dawes Molecule separators
CA2590762C (en) 2006-06-08 2013-10-22 Microsaic Systems Limited Microengineered vacuum interface for an ionization system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1579570A (en) * 1968-05-14 1969-08-29
DE1919460A1 (en) * 1969-04-17 1970-10-29 Varian Mat Gmbh Separator for mixtures of gaseous or vaporous substances, especially for separating the carrier gas in gas chromatography

Also Published As

Publication number Publication date
DE2254621A1 (en) 1973-05-24
FR2159433B1 (en) 1976-06-04
JPS4859892A (en) 1973-08-22
US3803811A (en) 1974-04-16
FR2159433A1 (en) 1973-06-22
SE357830B (en) 1973-07-09

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee