Method and apparatus
An ion filter for a mass spectrometer includes: an ion modifier 6 comprising two electrodes; an ion selector 4 configured to select a subset of ions based on their mobility in a gas; and a controller. The controller is configured to operate the ion modifier 6 in: a first mode to modify the ions by s...
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| creator | Jonathan Richard Atkinson Alastair Clark |
| description | An ion filter for a mass spectrometer includes: an ion modifier 6 comprising two electrodes; an ion selector 4 configured to select a subset of ions based on their mobility in a gas; and a controller. The controller is configured to operate the ion modifier 6 in: a first mode to modify the ions by subjecting them to an RF electric field in the region between the two electrodes to raise their effective temperature to provide daughter ions; and a second mode to output the ions without modification. The ion filter provides ions to a mass spectrometer. The modification of the ions may be before or after the selection of a subset of ions. The ion selector 4 may comprise the ion modifier 6. |
| format | Patent |
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The controller is configured to operate the ion modifier 6 in: a first mode to modify the ions by subjecting them to an RF electric field in the region between the two electrodes to raise their effective temperature to provide daughter ions; and a second mode to output the ions without modification. The ion filter provides ions to a mass spectrometer. The modification of the ions may be before or after the selection of a subset of ions. The ion selector 4 may comprise the ion modifier 6.</description><language>eng</language><subject>BASIC ELECTRIC ELEMENTS ; ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS ; ELECTRICITY ; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES ; MEASURING ; PHYSICS ; TESTING</subject><creationdate>2019</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20190925&DB=EPODOC&CC=GB&NR=2569059B$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76294</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20190925&DB=EPODOC&CC=GB&NR=2569059B$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Jonathan Richard Atkinson</creatorcontrib><creatorcontrib>Alastair Clark</creatorcontrib><title>Method and apparatus</title><description>An ion filter for a mass spectrometer includes: an ion modifier 6 comprising two electrodes; an ion selector 4 configured to select a subset of ions based on their mobility in a gas; and a controller. 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The controller is configured to operate the ion modifier 6 in: a first mode to modify the ions by subjecting them to an RF electric field in the region between the two electrodes to raise their effective temperature to provide daughter ions; and a second mode to output the ions without modification. The ion filter provides ions to a mass spectrometer. The modification of the ions may be before or after the selection of a subset of ions. The ion selector 4 may comprise the ion modifier 6.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | BASIC ELECTRIC ELEMENTS ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS ELECTRICITY INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TESTING |
| title | Method and apparatus |
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