GB1149426A – Improvements relating to mass spectrometry
– Google Patents
GB1149426A – Improvements relating to mass spectrometry
– Google Patents
Improvements relating to mass spectrometry
Info
Publication number
GB1149426A
GB1149426A
GB53876/66A
GB5387666A
GB1149426A
GB 1149426 A
GB1149426 A
GB 1149426A
GB 53876/66 A
GB53876/66 A
GB 53876/66A
GB 5387666 A
GB5387666 A
GB 5387666A
GB 1149426 A
GB1149426 A
GB 1149426A
Authority
GB
United Kingdom
Prior art keywords
voltage
ion
peak
mass
collector
Prior art date
1966-12-01
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
GB53876/66A
Inventor
Michael Barber
Brian Noel Green
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.)
Associated Electrical Industries Ltd
Original Assignee
Associated Electrical Industries Ltd
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.)
1966-12-01
Filing date
1966-12-01
Publication date
1969-04-23
1966-12-01
Application filed by Associated Electrical Industries Ltd
filed
Critical
Associated Electrical Industries Ltd
1966-12-01
Priority to GB53876/66A
priority
Critical
patent/GB1149426A/en
1967-11-30
Priority to SE16472/67A
priority
patent/SE321587B/xx
1967-11-30
Priority to DE19671648810
priority
patent/DE1648810A1/en
1967-11-30
Priority to FR1562853D
priority
patent/FR1562853A/fr
1967-11-30
Priority to NL6716310A
priority
patent/NL6716310A/xx
1969-04-23
Publication of GB1149426A
publication
Critical
patent/GB1149426A/en
1970-10-09
Priority to US79675A
priority
patent/US3689764A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
H—ELECTRICITY
H01—ELECTRIC ELEMENTS
H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
H01J49/00—Particle spectrometers or separator tubes
H01J49/02—Details
H01J49/022—Circuit arrangements, e.g. for generating deviation currents or voltages ; Components associated with high voltage supply
H—ELECTRICITY
H01—ELECTRIC ELEMENTS
H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
H01J49/00—Particle spectrometers or separator tubes
H01J49/26—Mass spectrometers or separator tubes
H01J49/28—Static spectrometers
H01J49/32—Static spectrometers using double focusing
H01J49/326—Static spectrometers using double focusing with magnetic and electrostatic sectors of 90 degrees
Abstract
1,149,426. Mass spectrometers. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 24 Nov., 1967 [1 Dec., 1966], No. 53876/66. Heading H1D. In a double-focusing mass spectrometer metastable mass peaks are recorded utilizing ion decompositions occurring both in the ion source 2 and in the region A between the ion source and the electrostatic analyser 5 by producing a scanning variation of the voltage ratio between the ion accelerating voltage and the electrostatic analyser deflection voltage, e.g. by producing a scanning variation of the ion accelerating voltage unaccompanied by complementary variation of the electrostatic analyser deflection voltage. The varying ion collector output is recorded in time correlation with the scanning variation. The collector output and also the voltage ratio may be periodically sampled and presented in digital form (Fig. 3) and a peak top sensing unit may be included (Fig. 5). The recording circuit may include a threshold detector responsive to the collector output rising above a set value towards a peak (Fig. 6). In a fully automated system the magnetic field of the magnetic analyser is scanned, preferably by decreasing the magnetic field exponentially, and as each peak is detected an accelerating voltage scan is made (Fig. 9). Each peak is arranged to have a flat top where a change in magnetic field produces little or no change in collector ion current, e.g. by suitable adjustment of the source and collector slits 4, 7. Provision may be made for discontinuing the magnet field scan for the duration of each voltage scan without interrupting the magnet current by use of a flux stabilizing arrangement (Fig. 10). A mass marker may also be included presenting mass identification in digital form. Examples are given of specific circuitry for suitable threshold detectors for the voltage sweep generator and for the accelerating voltage supply (Figs. 11 and 12).
GB53876/66A
1966-12-01
1966-12-01
Improvements relating to mass spectrometry
Expired
GB1149426A
(en)
Priority Applications (6)
Application Number
Priority Date
Filing Date
Title
GB53876/66A
GB1149426A
(en)
1966-12-01
1966-12-01
Improvements relating to mass spectrometry
SE16472/67A
SE321587B
(en)
1966-12-01
1967-11-30
DE19671648810
DE1648810A1
(en)
1966-12-01
1967-11-30
mass spectrometry
FR1562853D
FR1562853A
(en)
1966-12-01
1967-11-30
NL6716310A
NL6716310A
(en)
1966-12-01
1967-11-30
US79675A
US3689764A
(en)
1966-12-01
1970-10-09
Mass spectrometer scanning
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
GB53876/66A
GB1149426A
(en)
1966-12-01
1966-12-01
Improvements relating to mass spectrometry
Publications (1)
Publication Number
Publication Date
GB1149426A
true
GB1149426A
(en)
1969-04-23
Family
ID=10469272
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB53876/66A
Expired
GB1149426A
(en)
1966-12-01
1966-12-01
Improvements relating to mass spectrometry
Country Status (6)
Country
Link
US
(1)
US3689764A
(en)
DE
(1)
DE1648810A1
(en)
FR
(1)
FR1562853A
(en)
GB
(1)
GB1149426A
(en)
NL
(1)
NL6716310A
(en)
SE
(1)
SE321587B
(en)
Cited By (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3673404A
(en)
*
1970-05-15
1972-06-27
Perkin Elmer Corp
Ion kinetic energy analysis
GB2133924A
(en)
*
1983-01-17
1984-08-01
Jeol Ltd
Mass spectrometry
Families Citing this family (4)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3831026A
(en)
*
1966-05-17
1974-08-20
P Powers
Plural beam mass spectrometer and method of conducting plural beam studies
JPS5222558B2
(en)
*
1972-12-18
1977-06-17
JPS5546420A
(en)
*
1978-09-29
1980-04-01
Hitachi Ltd
Mass spectroscope
GB9019560D0
(en)
*
1990-09-07
1990-10-24
Vg Instr Group
Method and apparatus for mass spectrometry
Family Cites Families (4)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3010060A
(en)
*
1957-02-18
1961-11-21
Exxon Research Engineering Co
Input voltage controlled servosystem with one way drive output
US2945126A
(en)
*
1958-06-23
1960-07-12
Bell & Howell Co
Mass spectrometer
GB957084A
(en)
*
1961-10-19
1964-05-06
Ass Elect Ind
Improvements relating to mass spectrometers
US3416073A
(en)
*
1966-02-18
1968-12-10
Varian Associates
Precision magnetic field intensity scanner and mass spectrometer using same
1966
1966-12-01
GB
GB53876/66A
patent/GB1149426A/en
not_active
Expired
1967
1967-11-30
SE
SE16472/67A
patent/SE321587B/xx
unknown
1967-11-30
NL
NL6716310A
patent/NL6716310A/xx
unknown
1967-11-30
FR
FR1562853D
patent/FR1562853A/fr
not_active
Expired
1967-11-30
DE
DE19671648810
patent/DE1648810A1/en
active
Pending
1970
1970-10-09
US
US79675A
patent/US3689764A/en
not_active
Expired – Lifetime
Cited By (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3673404A
(en)
*
1970-05-15
1972-06-27
Perkin Elmer Corp
Ion kinetic energy analysis
GB2133924A
(en)
*
1983-01-17
1984-08-01
Jeol Ltd
Mass spectrometry
Also Published As
Publication number
Publication date
NL6716310A
(en)
1968-06-04
SE321587B
(en)
1970-03-09
DE1648810A1
(en)
1971-08-12
FR1562853A
(en)
1969-04-11
US3689764A
(en)
1972-09-05
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None