公开(公告)号：EP2606952A1

公开(公告)日：2013-06-26

申请号：EP13153770.6

申请日：2008-08-29

Applicant: SpectraSensors, Inc.

Inventor： Baum, Marc, M. ,  Moss, John ,  Feitisch, Alfred ,  Zhou, Xin ,  Liu, Xiang ,  Kwan, Alex

IPC: B01D53/52 ,  B01D53/58 ,  B01D53/68 ,  G01N30/02

CPC classification number: B01D53/685 ,  B01D53/42 ,  B01D53/52 ,  B01D53/58 ,  B01D2251/512 ,  B01D2251/602 ,  B01D2251/606 ,  B01D2259/40

Abstract: A method is disclosed which comprises maintaining a scrubber medium at a temperature in a range of -20°C to 85°C, the scrubber medium comprising reactive nanoparticles having first aerodynamic diameters of less than 250 nm that are adhered to carrier particles having second aerodynamic diameters in a range of 10 to 250 microns, the carrier particles being inert relative to one or more background compounds, the reactive nanoparticles comprising a solid-phase acid, the reactive nanoparticles being adhered to the carrier particles by one or more of van der Waals and electrostatic forces. In a further step, a gas mixture is contacted with the scrubber medium while the scrubber medium is maintained at the temperature, the gas mixture comprising a reactive compound and the one or more background compounds, the reactive compound comprising a gas-phase Lewis base, the contacting causing the reactive compound to react with the reactive nanoparticles to convert the reactive compound to one or more non-volatile salts or other non-volatile chemical compounds. An apparatus, a composition and a refreshing method are also disclosed.

Abstract translation: 公开了一种方法，其包括将洗涤器介质维持在-20℃至85℃范围内的温度，所述洗涤器介质包含具有小于250nm的第一空气动力学直径的反应性纳米颗粒，所述反应性纳米颗粒粘附于具有第二空气动力学 直径为10至250微米，所述载体颗粒相对于一种或多种背景化合物为惰性的，所述反应性纳米颗粒包含固相酸，所述反应性纳米颗粒通过一种或多种范德华力粘附至所述载体颗粒 和静电力。 在进一步的步骤中，使气体混合物与洗涤器介质接触，同时将洗涤器介质保持在该温度，该气体混合物包含反应性化合物和一种或多种背景化合物，反应性化合物包含气相路易斯碱， 该接触引起反应性化合物与反应性纳米颗粒反应以将反应性化合物转化为一种或多种非挥发性盐或其他非挥发性化合物。 还公开了一种装置，组合物和更新方法。

公开(公告)号：EP3892985A1

公开(公告)日：2021-10-13

申请号：EP21163478.7

申请日：2021-03-18

Applicant: SpectraSensors, Inc.

Inventor： Ludlum, Kevin ,  Winter, Marc ,  Scherrer, Benjamin ,  Liu, Xiang

IPC: G01N21/27 ,  G01N21/39

Abstract: The present disclosure relates to a computer-implemented method for forecasting calibration spectra including a step of providing a machine learning model trained using historical calibration data corresponding to different gas species at different pressures. The computer-implemented method also includes steps of performing a calibration scan of one gas species at one pressure using an analyzer and generating calibration curves for the analyzer corresponding to one or multiple gas species at multiple pressures using the machine learning model and the calibration scan. Thereafter, a spectrum is obtained using the analyzer, and a concentration measurement is generated using the spectrum and at least one of the calibration curves.

公开(公告)号：EP3767278A1

公开(公告)日：2021-01-20

申请号：EP20180817.7

申请日：2020-06-18

Applicant: SpectraSensors, Inc.

Inventor： Liu, Xiang ,  Feitisch, Alfred ,  Yeh, Gary ,  Chang, Chih-Husan

IPC: G01N21/3504 ,  G01N21/39 ,  G01J3/433

Abstract: A method for implementation by a laser spectrometer (200, 300) is provided. The method includes first scanning (110), by a control unit (255) using a first set of laser spectrometer operating parameters, a first wavelength range by adjusting a wavelength of light of a beam emitted by a laser light source (205) and passing through a sample gas. The first wavelength range encompasses a first spectral feature corresponding to a first constituent. The method also includes at least one second scanning (120), by the control unit (255) using a second set of laser spectrometer operating parameters, a second wavelength range by adjusting the wavelength of light emitted from the laser light source (205) and passing through the sample gas. The second wavelength range has a second spectral feature corresponding to at least one second constituent. The control unit (255) also determines (130) a first concentration of the first constituent and a second concentration of the at least one second constituent.

公开(公告)号：EP2570176B1

公开(公告)日：2016-05-04

申请号：EP12193089.5

申请日：2008-08-29

Applicant: SpectraSensors, Inc.

Inventor： Baum, Marc, M. ,  Moss, John ,  Feitisch, Alfred ,  Zhou, Xin ,  Liu, Xiang ,  Kwan, Alex

IPC: B01D53/52 ,  B01D53/58 ,  B01D53/68 ,  G01N30/02

CPC classification number: B01D53/685 ,  B01D53/42 ,  B01D53/52 ,  B01D53/58 ,  B01D2251/512 ,  B01D2251/602 ,  B01D2251/606 ,  B01D2259/40

公开(公告)号：EP2570176A1

公开(公告)日：2013-03-20

申请号：EP12193089.5

申请日：2008-08-29

Applicant: SpectraSensors, Inc.

Inventor： Baum, Marc, M. ,  Moss, John ,  Feitisch, Alfred ,  Zhou, Xin ,  Liu, Xiang ,  Kwan, Alex

IPC: B01D53/52 ,  B01D53/58 ,  B01D53/68 ,  G01N30/02

CPC classification number: B01D53/685 ,  B01D53/42 ,  B01D53/52 ,  B01D53/58 ,  B01D2251/512 ,  B01D2251/602 ,  B01D2251/606 ,  B01D2259/40

Abstract: A method is disclosed which comprises maintaining a scrubber medium at a temperature in a range of -20°C to 85°C, the scrubber medium comprising nanoparticles of a reactive metal oxide material having first aerodynamic diameters of less than 250 nm that are adhered to carrier particles having second aerodynamic diameters in a range of 10 to 250 microns and that are inert relative to one or more background compounds, wherein a mass ratio of the reactive metal oxide to the carrier particles is in a range of 20% to 30%, and wherein the nanoparticles of the reactive metal oxide are adhered to the carrier particles by one or more of van der Waals and electrostatic forces. In a further step a gas mixture is contacted with the scrubber medium while the scrubber medium is maintained at the temperature, the gas mixture comprising a reactive compound and the one or more background compounds, the reactive compound comprising a gas-phase acid, the contacting causing the reactive compound to react with the reactive metal oxide material to convert the reactive compound and at least one metal oxide site on the nanoparticles to one or more metal-anion surface compounds. An apparatus, a composition and a refreshing method are also disclosed.

Abstract translation: 公开了一种方法，其包括将洗涤器介质保持在-20℃至85℃的温度范围内，所述洗涤器介质包含具有小于250nm的第一空气动力学直径小于250nm的反应性金属氧化物材料的纳米颗粒， 载体颗粒具有10至250微米范围内的第二空气动力学直径，并且相对于一种或多种背景化合物是惰性的，其中反应性金属氧化物与载体颗粒的质量比在20％至30％的范围内， 并且其中所述反应性金属氧化物的纳米颗粒通过一种或多种范德华力和静电力粘附到载体颗粒上。 在另一步骤中，气体混合物与洗涤器介质接触，同时洗涤器介质保持在该温度，气体混合物包含反应性化合物和一种或多种背景化合物，反应性化合物包含气相酸，接触 使反应性化合物与反应性金属氧化物材料反应，以将反应性化合物和纳米颗粒上的至少一个金属氧化物位置转化成一种或多种金属 - 阴离子表面化合物。 还公开了一种装置，组合物和刷新方法。