JP4149816B2 - 不要イオン抑制のための質量分析計動作方法 - Google Patents
不要イオン抑制のための質量分析計動作方法 Download PDFInfo
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- JP4149816B2 JP4149816B2 JP2002589778A JP2002589778A JP4149816B2 JP 4149816 B2 JP4149816 B2 JP 4149816B2 JP 2002589778 A JP2002589778 A JP 2002589778A JP 2002589778 A JP2002589778 A JP 2002589778A JP 4149816 B2 JP4149816 B2 JP 4149816B2
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- Prior art keywords
- ions
- electric field
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J49/00—Particle spectrometers or separator tubes
- H01J49/02—Details
- H01J49/06—Electron- or ion-optical arrangements
- H01J49/062—Ion guides
- H01J49/063—Multipole ion guides, e.g. quadrupoles, hexapoles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J49/00—Particle spectrometers or separator tubes
- H01J49/004—Combinations of spectrometers, tandem spectrometers, e.g. MS/MS, MSn
- H01J49/0045—Combinations of spectrometers, tandem spectrometers, e.g. MS/MS, MSn characterised by the fragmentation or other specific reaction
-
- 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
- H01J49/105—Ion sources; Ion guns using high-frequency excitation, e.g. microwave excitation, Inductively Coupled Plasma [ICP]
-
- 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
- H01J49/34—Dynamic spectrometers
- H01J49/42—Stability-of-path spectrometers, e.g. monopole, quadrupole, multipole, farvitrons
- H01J49/4205—Device types
- H01J49/421—Mass filters, i.e. deviating unwanted ions without trapping
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J49/00—Particle spectrometers or separator tubes
- H01J49/44—Energy spectrometers, e.g. alpha-, beta-spectrometers
- H01J49/46—Static spectrometers
- H01J49/48—Static spectrometers using electrostatic analysers, e.g. cylindrical sector, Wien filter
- H01J49/488—Static spectrometers using electrostatic analysers, e.g. cylindrical sector, Wien filter with retarding grids
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
- Electron Tubes For Measurement (AREA)
Description
a) イオンの進行経路を定め、経路に沿ってイオンを誘導するための手段を備える、処理区画の入口にイオン流を与える工程、
b) イオン流に、中性粒子とのイオンの衝突を可能にする条件の下で動作する処理区画を通過させる工程、
c) 処理区画を通過するイオンを減速するため、処理区画の経路の少なくとも一部に沿って広がる内部減速電場であって、当該内部減速電場が、経路に沿うイオンを導入するための手段に沿ってその電位が変化するものを与える工程、及び
d) 所望の検体イオンより低い運動エネルギーを有する不要イオンに所望の検体イオンより大きな減速を与え、よって、不要イオンの減速及び不要イオンの選択的減損を促進し、検体イオン対不要イオンの比を高めるように、内部減速電場を選択する工程、
を含む。
12 誘導結合プラズマイオン源
34 四重極子
41 衝突/反応セル
42 ガス源
56,68 RF+DC電源
64 プレフィルタ
66 質量分析器
74 検出器
76 コンピュータ
114 補助電極
Claims (20)
- 連続するロッド入口及び出口を有する処理区画を備える質量分析計システムの動作方法において、
a) イオンの進行のための経路を定め、前記経路に沿ってイオンを誘導するための手段を備える前記処理区画の前記入口にイオン流を与える工程、
b) 前記イオン流に、中性粒子とのイオンの衝突を可能にする条件の下で作動される前記処理区画を通過させる工程、
c) 前記処理区画を通過するイオンを減速するために、前記処理区画の前記経路の少なくとも一部分に沿って広がる内部減速電場であって、当該内部減速電場が、前記経路に沿う前記イオンを誘導するための手段に沿ってその電位が変化するものを与える工程、及び
d) 所望の検体イオンより低い運動エネルギーを有する不要イオンに前記所望の検体イオンより大きな減速を与え、よって前記不要イオンの減速及び前記不要イオンの選択的減損を促進し、前記不要イオンに対する前記検体イオンの比を高めるように、前記内部減速電場を選択する工程、
を含むことを特徴とする方法。 - 前記不要イオンが、イオン源で生成されたイオン、前記中性粒子との反応により前記処理区画内で生成されたイオン、及び前記処理区画内でその他の過程により生成されたイオン、の内の少なくとも1つを含むことを特徴とする請求項1に記載の方法。
- 前記不要イオンが、前記内部電場を与える際に、前記所望の検体イオンとは異なる減速の度合いを有する多原子ソースイオンを含むことを特徴とする請求項1または2に記載の方法。
- 前記内部電場を静電場として与える工程を含むことを特徴とする請求項1に記載の方法。
- 前記内部電場を動電場として与える工程を含むことを特徴とする請求項1に記載の方法。
- 前記イオンを誘導するための手段として前記処理区画内に多重極子ロッドセットを備える工程、及び前記経路に沿うイオンの誘導を実施するために前記多重極子ロッドセットに電圧を印加する工程を含むことを特徴とする請求項1,4または5に記載の方法。
- 前記多重極子ロッドセットにRF電圧を印加する工程を含むことを特徴とする請求項6に記載の方法。
- 通過帯域を生じさせるために、前記多重極子ロッドセットにRF電圧及びDC電圧を印加する工程を含むことを特徴とする請求項6に記載の方法。
- 所望の検体イオンに対して所望の通過帯域を選択するため、前記所望のイオンに前記処理区画を通過させるため、及び前記所望のイオンとの干渉体を形成する傾向を有する前駆体イオンの排除を促進するために、前記RF電圧及び前記DC電圧またはRF周波数を調節する工程を含むことを特徴とする請求項8に記載の方法。
- 前記多重極子ロッドセットとして四重極子ロッドセットを備える工程を含むことを特徴とする請求項6に記載の方法。
- 前記四重極子ロッドセットにRF電圧を印加する工程を含むことを特徴とする請求項10に記載の方法。
- 前記四重極子ロッドセットにRF電圧及びDC電圧のいずれをも印加する工程を含むことを特徴とする請求項10に記載の方法。
- 所望の検体イオンに対して所望の通過帯域を選択するため、前記所望のイオンに前記処理区画を通過させるため、及び前記所望のイオンとの干渉体を形成する傾向を有する前駆体イオンの排除を促進するために、前記RF電圧及び前記DC電圧またはRF周波数を調節する工程を含むことを特徴とする請求項12に記載の方法。
- 前記内部電場を発生させるために補助電極を設ける工程を含むことを特徴とする請求項6に記載の方法。
- 多重極子ロッドセットのロッド間で前記補助電極を少なくとも部分的に突き出させ、よって前記ロッド内に前記内部電場を発生させる工程を含むことを特徴とする請求項14に記載の方法。
- 前記内部電場を発生させるために、前記多重極子ロッドセットにセグメント分割電極を設ける工程を含むことを特徴とする請求項6に記載の方法。
- 前記内部電場を発生させるために、前記多重極子ロッドセットに傾斜配置電極及びテーパ付電極の内の一方を設ける工程を含むことを特徴とする請求項6に記載の方法。
- 前記内部電場を発生させるために、前記多重極子ロッドセットの外部にある電極を設ける工程を含むことを特徴とする請求項6に記載の方法。
- 前記処理区画から出てくるイオンを検出する工程を含むことを特徴とする請求項1に記載の方法。
- 前記処理区画から出てくるイオンを検出する工程を含むことを特徴とする請求項6に記載の方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/853,715 US6627912B2 (en) | 2001-05-14 | 2001-05-14 | Method of operating a mass spectrometer to suppress unwanted ions |
PCT/CA2002/000694 WO2002093148A2 (en) | 2001-05-14 | 2002-05-09 | A method of operating a mass spectrometer to suppress unwanted ions |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2004531862A JP2004531862A (ja) | 2004-10-14 |
JP2004531862A5 JP2004531862A5 (ja) | 2007-12-06 |
JP4149816B2 true JP4149816B2 (ja) | 2008-09-17 |
Family
ID=25316720
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2002589778A Expired - Lifetime JP4149816B2 (ja) | 2001-05-14 | 2002-05-09 | 不要イオン抑制のための質量分析計動作方法 |
Country Status (8)
Country | Link |
---|---|
US (2) | US6627912B2 (ja) |
EP (1) | EP1393345B1 (ja) |
JP (1) | JP4149816B2 (ja) |
AT (1) | ATE458263T1 (ja) |
AU (1) | AU2002302228B2 (ja) |
CA (1) | CA2447035C (ja) |
DE (1) | DE60235357D1 (ja) |
WO (1) | WO2002093148A2 (ja) |
Families Citing this family (29)
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US6700120B2 (en) * | 2000-11-30 | 2004-03-02 | Mds Inc. | Method for improving signal-to-noise ratios for atmospheric pressure ionization mass spectrometry |
US6627912B2 (en) * | 2001-05-14 | 2003-09-30 | Mds Inc. | Method of operating a mass spectrometer to suppress unwanted ions |
GB2389452B (en) * | 2001-12-06 | 2006-05-10 | Bruker Daltonik Gmbh | Ion-guide |
US6992281B2 (en) * | 2002-05-01 | 2006-01-31 | Micromass Uk Limited | Mass spectrometer |
NZ554574A (en) * | 2004-10-28 | 2009-08-28 | Albert Edward Litherland | Method and apparatus for separation of isobaric interferences |
CA2660335C (en) * | 2006-09-28 | 2016-04-12 | Mds Analytical Technologies, A Business Unit Of Mds Inc., Doing Business Through Its Sciex Division | Method for axial ejection and in-trap fragmentation using auxiliary electrodes in a multipole mass spectrometer |
WO2008044285A1 (fr) * | 2006-10-11 | 2008-04-17 | Shimadzu Corporation | Spectroscope de masse quadripolaire |
EP1933365A1 (en) * | 2006-12-14 | 2008-06-18 | Tofwerk AG | Apparatus for mass analysis of ions |
EP1933366B1 (en) | 2006-12-14 | 2019-06-12 | Tofwerk AG | Apparatus for mass analysis of ions |
EP2126960B1 (en) * | 2007-02-01 | 2019-03-13 | DH Technologies Development Pte. Ltd. | Differential mobility spectrometer pre-filter assembly for a mass spectrometer |
EP1968100B1 (en) * | 2007-03-08 | 2014-04-30 | Tofwerk AG | Ion guide chamber |
US7880140B2 (en) * | 2007-05-02 | 2011-02-01 | Dh Technologies Development Pte. Ltd | Multipole mass filter having improved mass resolution |
WO2010044247A1 (ja) * | 2008-10-14 | 2010-04-22 | 株式会社日立ハイテクノロジーズ | 質量分析装置および質量分析方法 |
CA2767444C (en) * | 2009-07-06 | 2017-11-07 | Dh Technologies Development Pte. Ltd. | Methods and systems for providing a substantially quadrupole field with a higher order component |
US9190253B2 (en) | 2010-02-26 | 2015-11-17 | Perkinelmer Health Sciences, Inc. | Systems and methods of suppressing unwanted ions |
SG10201501031YA (en) | 2010-02-26 | 2015-04-29 | Perkinelmer Health Sci Inc | Fluid chromatography injectors and injector inserts |
SG183179A1 (en) * | 2010-02-26 | 2012-09-27 | Perkinelmer Health Sci Inc | Plasma mass spectrometry with ion suppression |
US9202679B2 (en) | 2010-11-26 | 2015-12-01 | Analytik Jena Ag | Electrically connected sample interface for mass spectrometer |
GB2497799B (en) | 2011-12-21 | 2016-06-22 | Thermo Fisher Scient (Bremen) Gmbh | Collision cell multipole |
WO2013132308A1 (en) * | 2012-03-09 | 2013-09-12 | Dh Technologies Development Pte. Ltd. | Methods and systems for providing a substantially quadrupole field with a higher order component |
CA2938675C (en) | 2014-02-14 | 2021-12-07 | Perkinelmer Health Sciences, Inc. | Systems and methods for automated optimization of a multi-mode inductively coupled plasma mass spectrometer |
US9754774B2 (en) | 2014-02-14 | 2017-09-05 | Perkinelmer Health Sciences, Inc. | Systems and methods for automated analysis of output in single particle inductively coupled plasma mass spectrometry and similar data sets |
EP3138117B1 (en) | 2014-05-01 | 2019-11-13 | PerkinElmer Health Sciences, Inc. | Methods for detection and quantification of selenium and silicon in samples |
US9425032B2 (en) * | 2014-06-17 | 2016-08-23 | Thermo Finnegan Llc | Optimizing drag field voltages in a collision cell for multiple reaction monitoring (MRM) tandem mass spectrometry |
US10068761B2 (en) * | 2014-08-26 | 2018-09-04 | Micromass Uk Limited | Fast modulation with downstream homogenisation |
EP3278352A4 (en) * | 2015-04-01 | 2018-11-14 | DH Technologies Development PTE. Ltd. | Rf/dc filter to enhance mass spectrometer robustness |
JP6544491B2 (ja) * | 2016-09-21 | 2019-07-17 | 株式会社島津製作所 | 質量分析装置 |
CA3074351A1 (en) * | 2017-09-01 | 2019-03-07 | Perkinelmer Health Sciences Canada, Inc. | Systems and methods using a gas mixture to select ions |
GB2608824A (en) * | 2021-07-13 | 2023-01-18 | Isotopx Ltd | Apparatus and method |
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CA1307859C (en) | 1988-12-12 | 1992-09-22 | Donald James Douglas | Mass spectrometer and method with improved ion transmission |
EP0704879A1 (en) * | 1994-09-30 | 1996-04-03 | Hewlett-Packard Company | Charged particle mirror |
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ATE300995T1 (de) * | 1996-05-14 | 2005-08-15 | Analytica Of Branford Inc | Ionentransfer von multipolionenleitern in multipolionenleiter und ionenfallen |
GB9612070D0 (en) * | 1996-06-10 | 1996-08-14 | Micromass Ltd | Plasma mass spectrometer |
US6163032A (en) * | 1997-03-12 | 2000-12-19 | Leco Corporation | Tapered or tilted electrodes to allow the superposition of independently controllable DC field gradients to RF fields |
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US6627912B2 (en) * | 2001-05-14 | 2003-09-30 | Mds Inc. | Method of operating a mass spectrometer to suppress unwanted ions |
-
2001
- 2001-05-14 US US09/853,715 patent/US6627912B2/en not_active Expired - Lifetime
-
2002
- 2002-05-09 US US10/476,875 patent/US20040124353A1/en not_active Abandoned
- 2002-05-09 AU AU2002302228A patent/AU2002302228B2/en not_active Expired
- 2002-05-09 WO PCT/CA2002/000694 patent/WO2002093148A2/en active Application Filing
- 2002-05-09 CA CA2447035A patent/CA2447035C/en not_active Expired - Lifetime
- 2002-05-09 AT AT02729688T patent/ATE458263T1/de not_active IP Right Cessation
- 2002-05-09 EP EP02729688A patent/EP1393345B1/en not_active Expired - Lifetime
- 2002-05-09 JP JP2002589778A patent/JP4149816B2/ja not_active Expired - Lifetime
- 2002-05-09 DE DE60235357T patent/DE60235357D1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US20020166959A1 (en) | 2002-11-14 |
US20040124353A1 (en) | 2004-07-01 |
WO2002093148A2 (en) | 2002-11-21 |
EP1393345A2 (en) | 2004-03-03 |
EP1393345B1 (en) | 2010-02-17 |
ATE458263T1 (de) | 2010-03-15 |
US6627912B2 (en) | 2003-09-30 |
CA2447035A1 (en) | 2002-11-21 |
WO2002093148A3 (en) | 2003-04-03 |
CA2447035C (en) | 2010-10-05 |
AU2002302228B2 (en) | 2008-02-07 |
JP2004531862A (ja) | 2004-10-14 |
DE60235357D1 (de) | 2010-04-01 |
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EXPY | Cancellation because of completion of term |