公开(公告)号：US20230114103A1

公开(公告)日：2023-04-13

申请号：US17893950

申请日：2022-08-23

Applicant: QUEST DIAGNOSTICS INVESTMENTS INCORPORATED

Inventor： Nigel CLARKE

IPC: G01N33/15 ,  H01J49/00 ,  G01N30/72 ,  G01N33/94 ,  G01N33/49 ,  H01J49/10

Abstract: Provided are methods for determining the amount of tamoxifen and its metabolites in a sample by mass spectrometry. In some aspects, the methods provided herein determine the amount of N-Desmethyl Tamoxifen. In some aspects, the methods provided herein determine the amount of N-Desmethyl Tamoxifen and other tamoxifen metabolites. In some aspects, the methods provided herein determine the amount of tamoxifen, N-Desmethyl Tamoxifen, and other tamoxifen metabolites.

公开(公告)号：US20230095510A1

公开(公告)日：2023-03-30

申请号：US17745203

申请日：2022-05-16

Applicant: INSTITUTE OF SOIL SCIENCE, CHINESE ACADEMY OF SCIENCES

Inventor： Fei Dang ,  Yujun Wang ,  Weiping Cai

IPC: H01J49/00 ,  G01N15/02 ,  H01J49/10 ,  G01N33/24 ,  H01J49/04

Abstract: Disclosed is a method for simultaneous determination of particle size distribution, concentrations of nanoparticulate mercury (Hg-NPs) in natural soils. The method uses sodium pyrophosphate as the extractant, and allows quick extraction of Hg-NPs in the soil without dissolution or aggregation. In combination with spICP-MS determination, the method makes it possible to simultaneously determine the particle size distribution and concentration of Hg-NPs in the complex soil matrix, with accurate determination results.

公开(公告)号：US20230070820A1

公开(公告)日：2023-03-09

申请号：US17682934

申请日：2022-02-28

Applicant: Kioxia Corporation

Inventor： Sho KATO ,  Yuji YAMADA ,  Jiahong WU

IPC: H01F7/20 ,  H01F1/44 ,  G01N1/04 ,  H01J49/10 ,  G01N33/202

Abstract: A collecting device includes a stage configured to place a substrate. A magnetic field generating unit holds, by a magnetic field, a first liquid containing a magnetic fluid and a collecting liquid to bring the first liquid into contact with at least an end portion of the substrate. A collecting unit collects the first liquid from the magnetic field generating unit. A separating unit separates the collecting liquid from the first liquid.

公开(公告)号：US11581177B2

公开(公告)日：2023-02-14

申请号：US16519925

申请日：2019-07-23

Applicant: PerkinElmer Health Sciences Canada, Inc. ,  Perkin Elmer Yuhan Hoesa

Inventor： Chady Stephan ,  Chung Ryu

IPC: H01J49/04 ,  H01J49/10

Abstract: Systems and methods for use in introducing samples to an analytical instrument. The systems and methods are adaptable to process either a liquid sample or a gaseous sample, including samples containing particle contaminants, for subsequent analysis using an analytical instrument.

公开(公告)号：US11579138B2

公开(公告)日：2023-02-14

申请号：US16701312

申请日：2019-12-03

Applicant: Xerox Corporation

Inventor： Richard P. N. Veregin ,  Kimberly D. Nosella ,  Rosa M. Duque ,  Melanie Lynn Davis ,  David R. Kurceba ,  Cuong Vong

IPC: G01N33/44 ,  G01N23/223 ,  H01J49/10 ,  C08F2/28 ,  C08F220/18 ,  C08F212/36 ,  C08F220/34

Abstract: A method for assessing polymeric additive content A in a polymeric particle mixture may comprise determining a concentration B of a metal cation in a polymeric particle mixture comprising parent polymeric particles and polymeric additive particles, wherein the metal cation is selected from alkali earth metals and alkali metals, other than sodium (Na), and the metal cation is capable of forming a water-soluble base; determining a concentration C of the metal cation in the parent polymeric particles; determining a concentration D of the metal cation in the polymeric additive particles; and calculating a polymeric additive content A using formula A=(B−C)/D.

公开(公告)号：US11569641B2

公开(公告)日：2023-01-31

申请号：US17098833

申请日：2020-11-16

Applicant: NRD LLC

Inventor： Jeremy Paul Willden ,  Helaman David Pratt Ferguson ,  Martin Robert Johnson ,  Samuel Tremain Earl ,  Lawrence Bruce Levit ,  Jonathan Scott Jensen ,  John M. Glynn, II

IPC: H01T23/00 ,  H01J49/10

Abstract: An alpha ion emitter apparatus, including a circuit, a fluid duct including one or more apertures, and a rail electrically connected to the circuit and operatively arranged to hold an alpha ionization material that emits alpha particles, the alpha particles creating alpha ions, wherein the circuit is operatively arranged to apply an output signal to at least one of the fluid duct and the rail.

公开(公告)号：US20230017417A1

公开(公告)日：2023-01-19

申请号：US17955440

申请日：2022-09-28

Applicant: AGILENT TECHNOLOGIES, INC.

Inventor： Alan D. LOUX

IPC: B25B23/142 ,  B25G1/10 ,  H01J49/10

Abstract: In some examples, a multi-device removal and installation tool may include a device removal tool including a first side having a first receiver with a first dimension that removably receives a first device, and a second side having a second receiver with a second dimension that removably receives a second device. The first dimension may be different from the second dimension. A torque limit tool may apply, in a first rotation direction of the torque limit tool and the device removal tool, a tightening torque to the first device. Further, the torque limit tool may apply, in a second rotation direction of the torque limit tool and the device removal tool, a loosening torque to the first device. The second rotation direction may be generally opposite to the first rotation direction.

公开(公告)号：US11557469B2

公开(公告)日：2023-01-17

申请号：US17417581

申请日：2020-03-24

Applicant: ATONARP INC.

Inventor： Naoki Takahashi ,  Prakash Sreedhar Murthy

IPC: H01J37/32 ,  H01J49/10

Abstract: There is provided a gas analyzer apparatus including: a sample chamber which is equipped with a dielectric wall structure and into which only sample gas to be measured is introduced; a plasma generation mechanism that generates plasma inside the sample chamber, which has been depressurized, using an electric field and/or a magnetic field applied through the dielectric wall structure; and an analyzer unit that analyzes the sample gas via the generated plasma. By doing so, it is possible to provide a gas analyzer apparatus capable of accurately analyzing sample gases, even those including corrosive gas, over a long period of time.

公开(公告)号：US20220404298A1

公开(公告)日：2022-12-22

申请号：US17809851

申请日：2022-06-29

Applicant: Ionwerks, Inc.

Inventor： J. Albert Schultz ,  Thomas Egan ,  Ernest K. Lewis ,  Steven Ulrich ,  Kelley L. Waters

IPC: G01N23/2258 ,  H01J49/04 ,  H01J49/14 ,  H01J49/16 ,  H01J49/00 ,  G01N21/64 ,  H01J49/26 ,  H01J49/40 ,  G01N21/65 ,  H01J49/10

Abstract: Methods and devices for mass spectrometry are described, specifically the use of nanoparticulate implantation as a matrix for secondary ion and more generally secondary particles. A photon beam source or a nanoparticulate beam source can be used a desorption source or a primary ion/primary particle source.

公开(公告)号：US20220392758A1

公开(公告)日：2022-12-08

申请号：US17754614

申请日：2020-09-22

Applicant: DH TECHNOLOGIES DEVELOPMENT PTE. LTD.

Inventor： Lyle Lorrence Burton

IPC: H01J49/00 ,  H01J49/10

Abstract: First, an MS scan of a mass range of a control sample that does not include a metabolite is performed (601) producing background peak m/z and intensity values for background precursor ions (602). Background peaks are selected for an exclusion list and in the exclusion list an m/z value and an intensity value are included for each background peak (604). Next, an MS scan of the mass range of an experimental sample that does include a metabolite is performed (610) producing peak m/z and intensity values for precursor ions (612). Peaks are selected for a peak list and in the peak list an m/z value and an intensity value are included for each peak (614). Finally, each peak of the peak list that has both an m/z value and an intensity value that correspond to an m/z value and an intensity value of a background peak of the exclusion list is excluded from the peak list (616).