公开(公告)号：US20240387160A1

公开(公告)日：2024-11-21

申请号：US18293245

申请日：2023-01-27

Applicant: KIMIA ANALYTICS INC. ,  QUADROCORE CORP.

Inventor： Gholamreza JAVAHERY ,  Sina ALAVI ,  Javad MOSTAGHIMI ,  Kaveh KAHEN

IPC: H01J49/00 ,  H01J49/06

Abstract: A collision cell is disclosed that comprises of a support and a target material. The parent ions entering the cell are accelerated and collide with the target material resulting in their fragmentation. The target material can be made from any suitable materials such as graphene, carbon, silicon, a combination of these materials, or alloys which have an atomic or molecular structure. The target material and the support are so selected to optimize the fragmentation process for a particular range of molecules and ions. The fragmented ions produced within the collision or fragmentation zone are focused and collected by a set of lenses positioned on the downstream side of the cell.

公开(公告)号：US20240203722A1

公开(公告)日：2024-06-20

申请号：US18286897

申请日：2022-04-11

Applicant: Kimia Analytics Inc

Inventor： Gholamreza JAVAHERY ,  Sina ALAVI ,  Javad MOSTAGHIMI ,  Kaveh KAHEN

IPC: H01J49/10 ,  H01J49/04 ,  H01J49/06

CPC classification number: H01J49/105 ,  H01J49/0422 ,  H01J49/062

Abstract: A new ICP-MS ion transfer method is disclosed capable of generating and transporting high yields of positive and negative ions, with the ability of quenching undesirable meta-stable ions and neutrals while using the existing ICP torch. A dopant is added in various pressure regions of the mass spectrometer interface, where reaction time is suitable for gas-phase ion/molecular reaction to occur. Introducing dopants or analyte in the provided RF confinement fields generates a high yield of negative ions in various pressure regions of mass spectrometer. A mechanism utilizing free electrons and meta-stable neutrals (Ar* for example) is used to form high yields of negatively charged elements which are originally atomized within the plasma and are stable in negative ionic form.

公开(公告)号：US20220159819A1

公开(公告)日：2022-05-19

申请号：US17528846

申请日：2021-11-17

Applicant: Kimia Analytics Inc.

Inventor： Sina ALAVI ,  Gholamreza JAVAHERY ,  Javad MOSTAGHIMI ,  Kaveh KAHEN

IPC: H05H1/28 ,  H01J49/10

Abstract: An air cooled inductively coupled plasma mass spectrometer (ICP-MS) is disclosed. The interface structure has a configuration that it can rapidly transfer heat away from the front surface of the interface that is exposed to a high temperature plasma, while maintaining heat in the ion beam to avoid recombination and clustering. The air cooled interface of the present system comprises of a set of fins for rapid heat transfer, which may be placed along the sides of the ICP-MS systems in a variety of orientations. Open-cell metal foam is also used to increase heat transfer efficiency. The system may be cooled by natural convention or forced convection using one or more air fans.