公开(公告)号：US09916972B2

公开(公告)日：2018-03-13

申请号：US14897690

申请日：2014-06-11

Applicant: University of Helsinki

Inventor： Mikko Sipilä ,  Heikki Junninen ,  Douglas Worsnop

IPC: H01J49/10 ,  H01J49/14 ,  H01J49/12 ,  H01J49/26 ,  H01J49/00 ,  G01N27/62

CPC classification number: H01J49/145 ,  G01N27/622 ,  H01J49/0077 ,  H01J49/12 ,  H01J49/26

Abstract: A device for ionizing sample particles of a sample gas flow comprises a first flow tube for providing the sample gas flow, and an introducing means for providing H2SO4 molecules to an interaction region. In addition the device comprises a generator for producing reagent primary ions from particles of candidate reagent gas flow essentially in a primary ion production region. The device is configured to introduce said reagent primary ions with H2SO4 molecules in said interaction region in order to arrange interaction between the reagent primary ions and the H2SO4 molecules, thereby producing HSO4− ions and again to produce HSO4− ion clusters comprising HSO4− ions and at least two H2SO4 molecules via interactions of HSO4− with other H2SO4 molecules in said interaction region. Furthermore the device is configured to introduce said HSO4− ion clusters with the sample particles of the sample gas flow in order to provide reactions between said HSO4− ion clusters and the sample particles, and thereby provide a sample cluster comprising the HSO4− ion clusters and said base sample to be determined.

公开(公告)号：US20160126079A1

公开(公告)日：2016-05-05

申请号：US14897690

申请日：2014-06-11

Applicant: UNIVERSITY OF HELSINKI

Inventor： Mikko Sipilä ,  Heikki Junninen ,  Douglas Worsnop

IPC: H01J49/14 ,  H01J49/26 ,  H01J49/12

CPC classification number: H01J49/145 ,  G01N27/622 ,  H01J49/0077 ,  H01J49/12 ,  H01J49/26

Abstract: A device for ionizing sample particles of a sample gas flow comprises a first flow tube for providing the sample gas flow, and an introducing means for providing H2SO4 molecules to an interaction region. In addition the device comprises a generator for producing reagent primary ions from particles of candidate reagent gas flow essentially in a primary ion production region. The device is configured to introduce said reagent primary ions with H2SO4 molecules in said interaction region in order to arrange interaction between the reagent primary ions and the H2SO4 molecules, thereby producing HSO4− ions and again to produce HSO4− ion clusters comprising HSO4− ions and at least two H2SO4 molecules via interactions of HSO4− with other H2SO4 molecules in said interaction region. Furthermore the device is configured to introduce said HSO4− ion clusters with the sample particles of the sample gas flow in order to provide reactions between said HSO4− ion clusters and the sample particles, and thereby provide a sample cluster comprising the HSO4− ion clusters and said base sample to be determined.

Abstract translation: 用于离子化样品气流的样品颗粒的装置包括用于提供样品气体流的第一流管和用于向相互作用区域提供H 2 SO 4分子的引入装置。 此外，该装置包括用于从基本上在一次离子产生区域中的候选反应物气体流的颗粒产生试剂初级离子的发生器。 该装置被配置为在所述相互作用区域中引入所述试剂初级离子与H 2 SO 4分子，以便布置试剂初级离子和H 2 SO 4分子之间的相互作用，由此产生HSO 4 - 离子，并再次产生包含HSO 4 - 离子的HSO 4 - 离子簇， 通过HSO4-与所述相互作用区域中的其它H 2 SO 4分子的相互作用，至少两个H 2 SO 4分子。 此外，该装置被配置为将所述HSO 4离子簇与样品气体流的样品颗粒引入，以便提供所述HSO 4离子簇和样品颗粒之间的反应，从而提供包含HSO 4离子簇的样品簇和 表示要测定的基础样品。