公开(公告)号：US20200240894A1

公开(公告)日：2020-07-30

申请号：US16775033

申请日：2020-01-28

Applicant: Aerosol Dynamics Inc.

Inventor： Gabriel Isaacman-VanWertz ,  Nathan M. Kreisberg ,  Susanne V. Hering

IPC: G01N15/14 ,  G01N15/10

Abstract: A method and apparatus for evaluating the chemical composition of airborne particles by sequentially collecting and analyzing airborne particles in-situ. The method includes: collecting particles; enlarging the particles through water condensation; accelerating the enlarged particles onto a surface to collect enlarged particles; and analyzing the enlarged particles by: isolating the surface; passing a carrier gas over the surface; heating the surface to thermally desorb collected particles into the carrier gas; transporting this evolved vapor into detectors; and assaying the evolved vapor as a function of a desorption temperature. The apparatus includes: a sample flow inlet; a condensational growth tube; a collection and thermal desorption (CTD) cell; a carrier gas source; a heater coupled to the CTD; one or more gas detectors; and a controller configured to operate valves, the heater, the growth tube, and the CTD cell in at least an in-situ sequential collection mode and analysis mode.

公开(公告)号：US09658139B2

公开(公告)日：2017-05-23

申请号：US14012818

申请日：2013-08-28

Applicant: TSI Incorporated

Inventor： Susanne V. Hering ,  Gregory S. Lewis ,  Arantzazu Eiguren Fernandez ,  Frederick Quant ,  Kenneth R. Farmer, II

IPC: G01N15/00 ,  G01N1/22 ,  G01N15/06

CPC classification number: G01N1/2202 ,  G01N1/2208 ,  G01N1/2211 ,  G01N15/065 ,  G01N2001/2217

Abstract: A system and a method is described herein for the collection of small particles in a concentrated manner, whereby particles are deposited onto a solid surface or collected into a volume of liquid. The collected samples readily interface to any of a number of different elemental, chemical, or biological or other analysis techniques.

公开(公告)号：US09610531B2

公开(公告)日：2017-04-04

申请号：US14043455

申请日：2013-10-01

Applicant: Aerosol Dynamics Inc.

Inventor： Susanne Vera Hering ,  Steven Russel Spielman ,  Gregory Stephen Lewis ,  Nathan Michael Kreisberg

IPC: B01D53/00 ,  B01D47/00 ,  B01D53/14 ,  B01D53/18 ,  B01D5/00 ,  G01M15/10 ,  F25J3/08 ,  G01N15/06 ,  G01N15/14 ,  G01N15/00

CPC classification number: B01D47/00 ,  B01D5/0009 ,  B01D53/1475 ,  B01D53/18 ,  F25J3/08 ,  F25J2200/70 ,  G01M15/102 ,  G01N15/06 ,  G01N15/065 ,  G01N2015/0038 ,  G01N2015/1481

Abstract: A system and method for particle enlargement with continuously wetted wicks includes a container into which a flow of particle-laden air is introduced in a laminar manner through an inlet and to an outlet. The container has a first section, a second section and a third section though which the particle-laden air flows between the inlet and the outlet. The temperature of the second section is warmer than that of the first section at the inlet and the third section at the outlet. In one embodiment, a continuous wick spanning an interior wall of the first second, second section and third section, said wick being capable of internally transporting liquid water along its length is provided.

公开(公告)号：US09579662B2

公开(公告)日：2017-02-28

申请号：US14043662

申请日：2013-10-01

Applicant: Aerosol Dynamics Inc.

Inventor： Susanne Vera Hering ,  Steven Russel Spielman ,  Gregory Stephen Lewis

IPC: B01D53/00 ,  B03C3/38 ,  B01D53/14 ,  B01D5/00 ,  G01N15/06 ,  G01N15/14 ,  G01N15/00

CPC classification number: B03C3/38 ,  B01D5/0009 ,  B01D53/002 ,  B01D53/1475 ,  B01D2257/504 ,  G01N15/065 ,  G01N2015/0038 ,  G01N2015/1481

Abstract: A particle charging method and apparatus are provided. An ion source is applied to a particle laden flow. The flow is introduced into a container in a laminar manner. The container has at least a first section, a second section and a third section. The first section includes wetted walls at a first temperature. A second section adjacent to the first section has wetted walls at a second temperature T2 greater than the first temperature T1. A third section adjacent to the second section has dry walls provided at a temperature T3 equal to or greater than T2. Additional water removal and temperature conditioning sections may be provided.

Abstract translation: 提供了一种粒子充电方法和装置。 将离子源施加到载满颗粒的流。 将流体以层流方式引入容器中。 容器至少具有第一部分，第二部分和第三部分。 第一部分包括第一温度下的湿壁。 与第一部分相邻的第二部分具有大于第一温度T1的第二温度T2的湿壁。 与第二部分相邻的第三部分具有设置在等于或大于T2的温度T3的干壁。 可以提供额外的除水和温度调节部分。

公开(公告)号：US20050244980A1

公开(公告)日：2005-11-03

申请号：US11008851

申请日：2004-12-10

Applicant: Susanne Hering ,  Allen Goldstein

Inventor： Susanne Hering ,  Allen Goldstein

IPC: G01N1/22 ,  G01N15/06 ,  G01N30/02 ,  G01N30/12 ,  G01N30/68 ,  G01N30/72 ,  G01N30/78

CPC classification number: G01N30/12 ,  G01N1/2214 ,  G01N15/065 ,  G01N30/68 ,  G01N30/7206 ,  G01N30/78 ,  G01N2030/128

Abstract: A method and apparatus for the in-situ, chemical analysis of an aerosol. The method may include the steps of: collecting an aerosol; thermally desorbing the aerosol into a carrier gas to provide desorbed aerosol material; transporting the desorbed aerosol material onto the head of a gas chromatography column; analyzing the aerosol material using a gas chromatograph, and quantizing the aerosol material as it evolves from the gas chromatography column. The apparatus includes a collection and thermal desorption cell, a gas chromatograph including a gas chromatography column, heated transport lines coupling the cell and the column; and a quantization detector for aerosol material evolving from the gas chromatography column.

Abstract translation: 一种用于气溶胶原位，化学分析的方法和装置。 该方法可以包括以下步骤：收集气溶胶; 将气溶胶热解吸到载气中以提供解吸的气溶胶材料; 将解吸的气溶胶材料运送到气相色谱柱的头上; 使用气相色谱仪分析气溶胶物质，并在气相色谱柱演化时量化气溶胶物质。 该装置包括收集和热解吸池，气相色谱仪，包括气相色谱柱，耦合电池和色谱柱的加热输送管线; 以及用于从气相色谱柱析出的气溶胶材料的量化检测器。