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公开(公告)号：US12055506B2
公开(公告)日：2024-08-06
申请号：US17632043
申请日：2020-05-28
申请人： Foss Analytical A/S
IPC分类号： G01N27/06 , G01N21/3577 , G01N33/04
CPC分类号： G01N27/06 , G01N21/3577 , G01N33/04
摘要： A method of standardizing an output of an electrical property sensor includes calculating a reference magnitude (Condr) of an electrical property of an electrically conductive liquid, based on obtaining, by a spectrometer, spectral data resulting from an interaction of light with the electrically conductive liquid, and applying, in a data processor, a mathematical model to the spectral data to calculate the reference magnitude (Condr) of the electrical property, wherein the mathematical model links the spectral data to magnitudes of the electrical property; comparing, in the data processor, a measured magnitude (Condm) of the electrical property of the electrically conductive liquid with a reference magnitude (Condr) of the electrical property, wherein the measured magnitude (Condm) of the electrical property is obtained with the electrical property sensor; determining, in the data processor, a standardization factor (F) dependent on a ratio of the reference magnitude (Condr) and the measured magnitude (Condm).
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公开(公告)号：US11965823B2
公开(公告)日：2024-04-23
申请号：US17629532
申请日：2020-05-29
申请人： Foss Analytical A/S
IPC分类号： G01N21/27 , G01N21/3577 , G01N21/35 , G01N33/04
CPC分类号： G01N21/274 , G01N21/3577 , G01N2021/3595 , G01N33/04 , G01N2201/1214 , G01N2201/129
摘要： A method of correcting for an amplitude change in a spectrometric instrument output includes: exposing a sample in a sample holder to electromagnetic radiation at a plurality of wavenumbers; detecting electromagnetic absorption intensities in the sample at the plurality of wavenumbers; providing to a computer device the detected electromagnetic absorption intensities indexed against wavenumber as spectral data; applying in the computer device a mathematical transform (Icorr) to the spectral data to correct for an amplitude change in the spectrometric instrument's output and calculated by determining a difference (Δ(SBZ)/) between first derivatives of a logarithmic transformation of spectral data (SBZ) from the zero material sample at two different wavenumber ranges (log10(SBZ(x1))/ and log10(SBZ(x2))/); and calculating the mathematical transform (Icorr) as a function inversely dependent on the determined difference (Δ(SBZ)/).
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公开(公告)号：US20230381780A1
公开(公告)日：2023-11-30
申请号：US18249808
申请日：2021-10-13
申请人： Foss Analytical A/S
CPC分类号： B01L3/502761 , B01F31/31 , B01F31/265 , B03C1/288 , B03C1/30 , B03C2201/18 , B01F2101/23
摘要： A mixer includes a mixing chamber and a motor mechanically connected to the mixing chamber. The mixing chamber comprises a suspended elongate rigid tube section having a top end and an open bottom end, and a flexible tube section extending downwards from the open bottom end. The motor comprises a vibration motor mechanically coupled to the suspended elongate rigid tube section at the top end of the suspended elongate rigid tube section.
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公开(公告)号：US20230011975A1
公开(公告)日：2023-01-12
申请号：US17784870
申请日：2020-10-15
申请人： Foss Analytical A/S
摘要： A method for determining an optical pathlength through a cuvette of a spectrophotometric apparatus includes obtaining a first single beam spectrum of a liquid zero-material at least in a first energy region in which the liquid zero-material absorbs at least a portion of incident optical radiation; obtaining a second single beam spectrum of a second liquid at least in the first energy region, the second liquid having a composition excluding the liquid zero-material and having no absorption of incident optical radiation in the first energy region; determining a dual beam spectrum of the liquid zero-material relative to the second liquid at least in the first energy region from the first and second single beam spectra; and calculating an optical pathlength through the cuvette based on processing spectral information obtained from the first energy region of the determined dual beam spectrum.
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公开(公告)号：US20220252505A1
公开(公告)日：2022-08-11
申请号：US17629532
申请日：2020-05-29
申请人： Foss Analytical A/S
IPC分类号： G01N21/27 , G01N21/3577
摘要： A method of correcting for an amplitude change in a spectrometric instrument output includes: exposing a sample in a sample holder to electromagnetic radiation at a plurality of wavenumbers; detecting electromagnetic absorption intensities in the sample at the plurality of wavenumbers; providing to a computer device the detected electromagnetic absorption intensities indexed against wavenumber as spectral data; applying in the computer device a mathematical transform (Icorr) to the spectral data to correct for an amplitude change in the spectrometric instrument's output and calculated by determining a difference (Δ(SBZ)/) between first derivatives of a logarithmic transformation of spectral data (SBZ) from the zero material sample at two different wavenumber ranges (log10(SBZ(x1))/ and log10(SBZ(x2))/); and calculating the mathematical transform (Icorr) as a function inversely dependent on the determined difference (Δ(SBZ)/).
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公开(公告)号：US11243147B2
公开(公告)日：2022-02-08
申请号：US17038531
申请日：2020-09-30
申请人： Foss Analytical A/S
发明人： Thomas Nikolajsen , Daniel Aden
IPC分类号： G01N1/28 , G01N1/44 , G01N33/483 , G01N21/71
摘要： A method for preparing a sample of organic material for laser induced breakdown spectroscopy (LIBS) may include obtaining granular organic material, forming a portion of the granular organic material into a sample pellet, and searing the organic material. The searing may include searing only an exposed end surface of the sample pellet on which LIBS analysis is to be performed. The method may include pressing the seared sample pellet to consolidate the material comprising the seared end surface.
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公开(公告)号：US20210255182A1
公开(公告)日：2021-08-19
申请号：US17270981
申请日：2019-08-07
申请人： Foss Analytical A/S
IPC分类号： G01N33/558 , B01L3/00
摘要： A device comprises: a receptacle having a bottom wall portion closing a first end of the receptacle to delimit an inner space and having a receptacle opening at an opposite second end; a compartment for holding a lateral flow assay test strip, the compartment having a lower portion located closer to the first end than to the second end; a passageway in fluid communication with the lower portion of the compartment; and a lid configured to overlay the receptacle opening and comprising a body portion. A sample receiving portion is located in said body portion and is arranged in fluid communication with the inner space. The passageway is delimited by a first opening into the lower portion of the compartment and a second opening in the lid.
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公开(公告)号：US20210213443A1
公开(公告)日：2021-07-15
申请号：US17270990
申请日：2019-08-07
申请人： Foss Analytical A/S
摘要： A sampling device comprises a receptacle having an inner material receiving space defined by a side wall portion and a bottom wall portion and having a receptacle opening; and a sample container being adapted to close the receptacle opening when collocated with the receptacle. The sample container includes: a sample receiving portion which, when collocated with the receptacle is located in liquid communication with the inner material receiving space; a sample well positioned radially outside of the sample receiving portion in a direction perpendicular to a longitudinal axis, the sample well having a well opening; a liquid passageway for directing liquid from the sample receiving portion towards the well opening; a container having a container opening; and a liquid impermeable barrier for preventing liquid entering the container opening from the sample receiving portion.
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公开(公告)号：US10830674B2
公开(公告)日：2020-11-10
申请号：US16323572
申请日：2016-09-08
申请人： Foss Analytical A/S
发明人： Thomas Nikolajsen , Daniel Aden
IPC分类号： G01N1/28 , G01N1/44 , G01N33/483 , G01N21/71
摘要： A method for preparing a sample of organic material for laser induced breakdown spectroscopy (LIBS) may include obtaining granular organic material, forming a portion of the granular organic material into a sample pellet, and searing the organic material. The searing may include searing only an exposed end surface of the sample pellet on which LIBS analysis is to be performed. The method may include pressing the seared sample pellet to consolidate the material comprising the seared end surface.
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公开(公告)号：US10520445B2
公开(公告)日：2019-12-31
申请号：US16075775
申请日：2016-03-31
申请人： Foss Analytical A/S
摘要： A Laser Induced Breakdown Spectrocopy (LIBS) system for the analysis of a sample pellet of a consolidated granular material retained in a tubular container may include a laser source configured to emit a pulsed laser beam towards an exposed surface of the sample pellet; and a sample station configured to hold the cylindrical tubular container in one or more orientations to present an exposed surface of the sample pellet towards the pulsed laser beam. The sample station may induce linear movement of the sample pellet along an axis and to expose a portion of the outer side surface of the sample pellet previously constrained through contact with an inner surface of the cylindrical tubular container. The sample station may induce rotational motion of the outer side surface of the sample pellet around the movement axis to present the portion of the outer side surface as the exposed surface.
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