公开(公告)号：US20220252505A1

公开(公告)日：2022-08-11

申请号：US17629532

申请日：2020-05-29

Applicant: Foss Analytical A/S

Inventor： Per Waaben HANSEN ,  Jeppe Sandvik CLAUSEN

IPC: G01N21/27 ,  G01N21/3577

Abstract: 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)/).

公开(公告)号：US20160123870A1

公开(公告)日：2016-05-05

申请号：US14895946

申请日：2013-06-04

Applicant: FOSS ANALYTICAL A/S

Inventor： Per Waaben HANSEN

IPC: G01N21/35 ,  G01N21/27

CPC classification number: G01N21/35 ,  G01J3/0291 ,  G01J3/42 ,  G01J3/45 ,  G01N21/274 ,  G01N2021/3595 ,  G01N2201/061 ,  G01N2201/12746

Abstract: A method of determining a pathlength deviation of a sample (610), the method comprising: exposing the sample (610) to electromagnetic radiation at a plurality of wavenumbers, determining electromagnetic absorption in the sample (610) at the plurality of wavenumbers, determining a first wavenumber associated with a first absorption level of an absorption band and a second wavenumber associated with a second absorption level of the absorption band, wherein the second wavenumber is different from the first wavenumber, determining a difference between the first wavenumber and the second wavenumber, and determining the pathlength deviation based on the difference.

Abstract translation: 一种确定样品（610）的路径长度偏差的方法，所述方法包括：将样品（610）暴露于多个波数处的电磁辐射，确定多个波数处的样品（610）中的电磁吸收，确定 第一波数与吸收带的第一吸收水平和与吸收带的第二吸收水平相关联的第二波数相关联，其中第二波数不同于第一波数，确定第一波数和第二波数之间的差， 以及基于所述差异确定所述路径长度偏差。

公开(公告)号：US20220276189A1

公开(公告)日：2022-09-01

申请号：US17632043

申请日：2020-05-28

Applicant: Foss Analytical A/S

Inventor： Per Waaben HANSEN ,  Mads Lykke ANDERSEN

IPC: G01N27/06 ,  G01N33/04 ,  G01N21/3577

Abstract: 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).

公开(公告)号：US20190250099A1

公开(公告)日：2019-08-15

申请号：US16397159

申请日：2019-04-29

Applicant: Foss Analytical A/S

Inventor： Per Waaben HANSEN ,  Henrik Vilstrup JUHL ,  Lars NOERGAARD ,  Andreas BAUM ,  Joern Dalgaard MIKKELSEN

IPC: G01N21/3577 ,  G16C10/00 ,  G01N21/17 ,  G16C20/70 ,  G16C20/10 ,  C12Q1/37 ,  G01N33/14 ,  G01N21/75 ,  G01N33/04

CPC classification number: G01N21/3577 ,  C12Q1/37 ,  G01N21/1717 ,  G01N21/75 ,  G01N33/04 ,  G01N33/143 ,  G01N33/146 ,  G01N2201/127 ,  G01N2201/129 ,  G01N2333/9648 ,  G16C10/00 ,  G16C20/10 ,  G16C20/70

Abstract: A method of determining a constituent related sample property of a multi-constituent sample comprising: subjecting the sample to a perturbation selected to induce a time dependent change in measurement data associated with a constituent related to the sample property to be determined; recording a time-series of measurement data following subjecting the sample to the perturbation; and determining the sample property from the application to the recorded time-series of measurement data of a calibration correlating the sample property with time-series of measurement data, said calibration being empirically derived from chemometric time-series modelling of time-series measurement data recorded for each of a plurality of reference samples following subjecting each reference sample to the perturbation, each reference sample having a different known values of the sample property.