公开(公告)号：US09745848B2

公开(公告)日：2017-08-29

申请号：US14432137

申请日：2013-08-22

Applicant: Halliburton Energy Services, Inc.

Inventor： Mathew D. Rowe ,  David Muirhead

IPC: E21B49/00 ,  E21B21/01 ,  H01J49/40 ,  H01J49/00 ,  H01J49/26 ,  E21B21/06 ,  E21B49/08

CPC classification number: E21B49/005 ,  E21B21/01 ,  E21B21/067 ,  E21B49/00 ,  E21B49/086 ,  H01J49/0027 ,  H01J49/26 ,  H01J49/40

Abstract: An example method for analyzing drilling fluid used in a drilling operation within a subterranean formation may comprise placing a TOF-MS in fluid communication with a drilling fluid. The drilling fluid may be flowing through a fluid conduit coupled to a drilling assembly. A chemical composition of the drilling fluid may be determined using the TOF-MS. And a formation characteristic may be determined using the determined chemical composition.

公开(公告)号：US09734995B2

公开(公告)日：2017-08-15

申请号：US14385788

申请日：2013-03-06

Applicant: Micromass UK Limited

Inventor： Martin Raymond Green ,  Gareth Rhys Jones ,  Michael Raymond Morris ,  Jason Lee Wildgoose

IPC: H01J49/00 ,  G01N27/62 ,  H01J49/26 ,  H01J49/40

CPC classification number: H01J49/0036 ,  G01N27/622 ,  H01J49/26 ,  H01J49/40

Abstract: A method of mass spectrometry is disclosed wherein the intensity of an analyte is determined by determining the intensity of first characteristic fragment ions when the intensity of the first characteristic fragment ions is within a first intensity range corresponding to the detection or unsaturated range of an ion detector. However, when the intensity of the first characteristic fragment ions is outside of the first intensity range so that the ion detector would saturate then the intensity of the analyte is determined by determining the intensity of second different characteristic fragment ions.

公开(公告)号：US09721777B1

公开(公告)日：2017-08-01

申请号：US15099054

申请日：2016-04-14

Applicant: Bruker Daltonics, Inc.

Inventor： Felician Muntean

IPC: H01J49/10 ,  H01J49/26 ,  G01N30/72 ,  H01J49/14 ,  H01J49/34

CPC classification number: H01J49/147 ,  H01J49/34

Abstract: The invention relates to a mass spectrometer having an electron impact ionization source which comprises an ejector for forming a beam of sample gas being driven in a first direction through an interaction region; a magnet assembly configured and arranged such that its magnetic field lines pass through the interaction region substantially parallel to the first direction; an electron emitter assembly for directing electrons toward the interaction region in a second direction being aligned substantially opposite to the first direction, wherein the electrons propagate along and are confined about the magnetic field lines until reaching the interaction region and forming sample gas ions therein; and a mass analyzer located downstream from the interaction region to which the sample gas ions are guided for mass analysis.

公开(公告)号：US09715998B2

公开(公告)日：2017-07-25

申请号：US14646983

申请日：2014-01-09

Applicant: KAOHSIUNG MEDICAL UNIVERSITY

Inventor： Chi-Yu Lu ,  Yi-Hsuan Lee

IPC: G01N33/15 ,  G01N30/72 ,  H01J49/26 ,  H01J49/40 ,  H01J49/00 ,  H01J49/16

CPC classification number: H01J49/0036 ,  H01J49/164

Abstract: The invention discloses a method for monitoring level of paraben comprising: dissolving a sample in a solvent and obtaining a supernatant containing paraben by ultrasonic vibration and high speed centrifugation; performing a derivatization reaction between a derivatization reagent and paraben by adding the derivatization reagent into the supernatant to obtain a derivatization solution containing a tagged paraben; extracting the derivatization solution by an extractant to obtain an extract containing the tagged paraben; and ionizating the tagged paraben by a laser beam and analyzing mass-to-charge ratio of the tagged paraben by an analyzer to determine molecular weight thereof.

公开(公告)号：US09704701B2

公开(公告)日：2017-07-11

申请号：US14851935

申请日：2015-09-11

Applicant: Yehia M. Ibrahim ,  Sandilya V. B. Garimella ,  Richard D. Smith

Inventor： Yehia M. Ibrahim ,  Sandilya V. B. Garimella ,  Richard D. Smith

IPC: H01J49/26 ,  H01J49/40 ,  G01N27/62

CPC classification number: H01J49/26 ,  G01N27/622 ,  H01J49/0013 ,  H01J49/022 ,  H01J49/40

Abstract: Methods and devices for ion separations or manipulations in gas phase are disclosed. The device includes a single non-planar surface. Arrays of electrodes are coupled to the surface. A combination of RF and DC voltages are applied to the arrays of electrodes to create confining and driving fields that move ions through the device. The DC voltages are static DC voltages or time-dependent DC potentials or waveforms.

公开(公告)号：US09697999B2

公开(公告)日：2017-07-04

申请号：US14364639

申请日：2012-12-12

Applicant: Thermo Fisher Scientific (Bremen) GmbH

Inventor： Alexander Alekseevich Makarov ,  Lothar Rottmann

IPC: G01N24/00 ,  H01J49/04 ,  H01J49/06 ,  H01J49/10 ,  H01J49/26

CPC classification number: H01J49/0495 ,  H01J49/067 ,  H01J49/105 ,  H01J49/26

Abstract: A method of preparing or operating a mass spectrometer vacuum interface comprising a skimmer apparatus having a skimmer aperture and an internal surface of the skimmer apparatus, comprising disposing an adsorbent or getter material on the internal surface. The internal surface has a deposition region where matter from plasma flows may be deposited and the material is disposed on part or all of the deposition region. The disposing step may be performed before a first use and/or intermittently, especially to refresh a previously disposed material. Providing such material serves to trap or collect deposition matter which might anyway be deposited but in such a way that subsequent liberation of that matter is prevented or at least reduced.

公开(公告)号：US09697338B2

公开(公告)日：2017-07-04

申请号：US13656447

申请日：2012-10-19

Applicant: California Institute of Technology ,  Thermo Fisher Scientific (Bremen) GmbH

Inventor： John M. Eiler ,  Johannes Schwieters

IPC: H01J49/26 ,  G06F19/00

CPC classification number: G06F19/703

Abstract: A mass spectrometer including an entrance slit, an energy filter, a momentum filter and a detector array, the entrance slit, energy filter and momentum filter being configured to provide molecular analyte ions to the detector array at a mass resolution of about 20,000 or greater. A method for determining the isotopic composition of an analyte in a sample includes converting the analyte to molecular analyte ions, separating the molecular analyte ions using an entrance slit, separating the molecular analyte ions according to their energy levels, separating the molecular analyte ions according to their momenta, detecting two or more of the molecular analyte ions at a mass resolution of about 20,000 or greater to produce molecular analyte ion data; and analyzing the molecular analyte data to determine the isotopic composition of at least a portion of the analyte.

公开(公告)号：US09653278B2

公开(公告)日：2017-05-16

申请号：US14369308

申请日：2012-11-28

Applicant: DH Technologies Development Pte. Ltd.

Inventor： Mircea Guna

IPC: H01J49/26 ,  H01J49/42 ,  H01J49/10

CPC classification number: H01J49/4225 ,  H01J49/10 ,  H01J49/26 ,  H01J49/4245 ,  H01J49/4255

Abstract: An ion trap is disclosed comprising a plurality of elongate electrodes aligned with one another and with a central longitudinal axis along respective longitudinal axes and that are spaced apart from one another and disposed about a central longitudinal axis to form a quadrupole. The ion trap further comprises an elongate electrode that is aligned with and disposed along the central longitudinal axis, and circuitry coupled to the outer electrodes is suitable for driving the central and outer electrodes to selectively trap of ions within a region defined between the central electrode and the outer.

公开(公告)号：US09653273B2

公开(公告)日：2017-05-16

申请号：US14650242

申请日：2012-12-06

Applicant: DH TECHNOLOGIES DEVELOPMENT PTE. LTD.

Inventor： William Morgan Loyd ,  Alexandre Loboda ,  Gregor Sprah ,  Igor V. Chernushevich

IPC: H01J49/06 ,  H01J49/26 ,  H01J49/40

CPC classification number: H01J49/068 ,  H01J49/26 ,  H01J49/40

Abstract: Ion optics devices and related methods of making and using the same are disclosed herein that generally involve forming a plurality of electrode structures on a single substrate. An aspect ratio of the structures relative to a plurality of recesses which separate the structures can be selected so as to substantially prevent ions passing through the finished device from contacting exposed, electrically-insulating portions of the substrate. The substrate material can be a material that is relatively inexpensive and easy to machine into complex shapes with high precision (e.g., a printed circuit board material). In some embodiments, discrete ion optical elements are disclosed which can be formed from a core material to which an electrically-conductive coating is applied, the core material being relatively inexpensive and easy to machine with high precision. The coating can be configured to substantially prevent outgassing from the core under the vacuum conditions typically experienced in a mass spectrometer.

公开(公告)号：US09627188B2

公开(公告)日：2017-04-18

申请号：US14549041

申请日：2014-11-20

Applicant: Parisa A. Ariya ,  Farhad Raofie ,  Daniel Deeds

Inventor： Parisa A. Ariya ,  Farhad Raofie ,  Daniel Deeds

IPC: H01J49/04 ,  H01J49/00 ,  G01N1/40 ,  G01N33/18 ,  G01N15/06 ,  H01J49/26

CPC classification number: H01J49/0022 ,  G01N1/405 ,  G01N15/06 ,  G01N33/1813 ,  H01J49/04 ,  H01J49/26

Abstract: This invention relates to systems and methods for measuring quantitatively multiple species or heavy metals, including mercury, and other toxic pollutants. More specifically, the systems and methods of the invention allows for determination of the analytes even at very low concentration, through concentration on a collection interface, desorption and analysis by mass spectrometry. The invention also provides for a portable device or kit for modifying an existing mass spectrometer.