公开(公告)号：US20160111270A1

公开(公告)日：2016-04-21

申请号：US14895119

申请日：2014-06-17

Applicant: HORIBA JOBIN YVON SAS

Inventor： Patrick CHAPON ,  Sebastien LEGENDRE

IPC: H01J49/12 ,  H01J49/00 ,  H01J49/40

CPC classification number: H01J49/12 ,  H01J37/32018 ,  H01J37/32862 ,  H01J49/0031 ,  H01J49/40

Abstract: A glow discharge mass spectrometry device and method, the device including a glow discharge lamp (1), gas flow-injection elements, the glow discharge lamp being suitable for forming an ablation plasma in the presence of a plasma gas, and a mass spectrometer. The device further includes heating elements (30, 31) suitable for heating a gas flow (38) upstream of a cell (2), the gas flow-injection elements being suitable for injecting into the glow discharge cell a gas flow (38) heated to a temperature T for a duration D, and pumping elements (7, 27) being designed to pump a flow of gaseous species (17, 37) out of the cell for the duration D, so as to decontaminate the surface of the sample (4) and/or the inner walls of the glow discharge cell (2) before an ablation plasma (5) is ignited.

Abstract translation: 一种辉光放电质谱装置和方法，所述装置包括辉光放电灯（1），气体流注入元件，所述辉光放电灯适合于在等离子体气体存在下形成消融等离子体，以及质谱仪。 该装置还包括适于加热电池（2）上游的气流（38）的加热元件（30,31），气流注入元件适用于向辉光放电室注入加热的气流（38） 温度T持续持续时间D，并且泵送元件（7,27）被设计成将气态物质（17,37）的流从泵送出持续时间D，以便去除样品表面（ 4）和/或辉光放电单元（2）的内壁在消融等离子体（5）被点燃之前。

公开(公告)号：US20170018417A1

公开(公告)日：2017-01-19

申请号：US15301218

申请日：2015-03-27

Applicant: HORIBA JOBIN YVON SAS

Inventor： Patrick CHAPON ,  Agnes TEMPEZ ,  Sebastien LEGENDRE

IPC: H01J49/10 ,  H01J49/00 ,  H01J49/40 ,  H01J49/24

CPC classification number: H01J49/105 ,  H01J49/0031 ,  H01J49/24 ,  H01J49/40

Abstract: A system and a process for measuring, by glow discharge spectrometry, the elemental and/or molecular chemical composition of an organic solid sample (10). The sample (10) is positioned so as to seal a glow discharge plasma reactor (2), a gaseous mixture including at least one inert gas and gaseous oxygen is injected into the reactor (2), the concentration of gaseous oxygen being between 0.1% and 15% by weight of the gaseous mixture, an electric discharge of radiofrequency type is applied to the electrodes of the plasma reactor (2) in order to generate a glow discharge plasma, and the solid sample (10) is exposed to the plasma so as to etch an erosion crater in the solid sample (10); at least one signal representative of an ionized species of negative charge is selected and measured using a mass spectrometer (4).

Abstract translation: 通过辉光放电光谱测定有机固体样品（10）的元素和/或分子化学组成的系统和方法。 定位样品（10）以密封辉光放电等离子体反应器（2），将包含至少一种惰性气体和气态氧的气体混合物注入反应器（2）中，气态氧浓度在0.1％ 和15重量％的气体混合物，为了产生辉光放电等离子体，将等离子体反应器（2）的电极施加射频型放电，并将固体样品（10）暴露于等离子体 蚀刻固体样品（10）中的侵蚀坑; 使用质谱仪（4）选择和测量代表负电荷的离子化物质的至少一个信号。