Methods for casein determination in milk
    41.
    发明授权
    Methods for casein determination in milk 有权
    牛奶中酪蛋白测定方法

    公开(公告)号:US07704744B2

    公开(公告)日:2010-04-27

    申请号:US10503978

    申请日:2003-02-10

    CPC classification number: G01N21/82 G01N15/042 G01N21/3577 G01N33/04

    Abstract: The content of casein in milk is determined by two measurements of infrared absorbance in a milk sample by infrared spectrometry before and after a separation of the casein. The casein content is calculated by use of absorbance data recorded during the two absorbance measurements. The new method is considerable faster than the known wet-chemical methods, such as the normal wet chemical reference method for casein determination in milk using a Kjeldahl nitrogen determination of the milk sample, then a coagulation of the milk, and finally a Kjeldahl nitrogen determination of the filtrate. Further the new method provides a more reliable accuracy than the know determination using a single infrared analysis of a milk sample.

    Abstract translation: 牛奶中酪蛋白的含量通过红外光谱法在酪蛋白分离前后通过乳样品中的红外吸光度的两次测量来确定。 通过使用在两次吸光度测量期间记录的吸光度数据来计算酪蛋白含量。 新方法比已知的湿法化学方法快得多,例如使用牛奶样品的凯氏定氮测定乳中酪蛋白测定的正常湿化学参考方法,然后凝乳,最后进行凯氏定氮 的滤液。 此外,新方法提供比使用牛奶样品的单一红外分析的知道确定更可靠的精度。

    Method and a spectrometer for quantitative determination of a constituent in a sample
    42.
    发明授权
    Method and a spectrometer for quantitative determination of a constituent in a sample 失效
    方法和用于定量测定样品中成分的光谱仪

    公开(公告)号:US07288767B2

    公开(公告)日:2007-10-30

    申请号:US10514628

    申请日:2003-05-28

    Applicant: Carsten Ridder

    Inventor: Carsten Ridder

    CPC classification number: G01N21/274

    Abstract: The present invention relates to a method of determining a constituent of a sample and more specifically, to a method of correcting an absorbance value for a spectrometer. The method is especially applicable in connection with spectrometric analysis instruments for quantitatively determining the chemical composition of fluids, e.g. the content of fat, protein lactose or urea, in food products, especially in raw milk or dairy products. The method is based upon a measurement of one or more selected ranges of a spectrum, providing an absorption spectrum of the product. The method may be applicable in connection with all spectroscopic instruments giving rise to specific ranges of a spectrum, such as UV, VIS, NIR, IR, NMR, MS, etc.). Typically, the spectrum will be a MID-IR absorption spectrum.

    Abstract translation: 本发明涉及一种测定样品成分的方法,更具体地说,涉及校正光谱仪的吸光度值的方法。 该方法特别适用于光谱分析仪器,用于定量测定流体的化学成分,例如 食品中的脂肪,蛋白质乳糖或尿素的含量,特别是生奶或乳制品中的含量。 该方法基于测量一个或多个选定的光谱范围,从而提供产物的吸收光谱。 该方法可以适用于产生光谱的特定范围的所有光谱仪,例如UV,VIS,NIR,IR,NMR,MS等)。 通常,光谱将是MID-IR吸收光谱。

    Method and means for correcting measuring instruments
    43.
    发明申请
    Method and means for correcting measuring instruments 失效
    测量仪器校正方法和方法

    公开(公告)号:US20050096853A1

    公开(公告)日:2005-05-05

    申请号:US10501010

    申请日:2002-12-11

    Applicant: Per Hansen

    Inventor: Per Hansen

    CPC classification number: G01N21/278 G01N21/274 G01N23/06 G01N33/12

    Abstract: The invention relates to measuring instruments, preferably of the kind measuring absorbances, in an object, of electromagnetic radiation in at least two spectral ranges, such as IR instruments, and DXR, meaning Dual X-ray instruments, and more specifically to the determination of properties of food or feed, such as the fat content in milk or meat. The invention relates in particular to a method of providing a correction for a slave instrument of the kind measuring properties of an object by exposing the object to electromagnetic radiation, in particular X-rays, in at least two spectral ranges and obtaining one or more object responses thereto. The responses obtained being preferably based on detecting attenuation and/or reflection and/or scatter of the electromagnetic radiation in/from the object by use of one or more detectors and are obtained in a form where they express properties of the object either directly or via a transformation.

    Abstract translation: 本发明涉及在至少两个光谱范围内的电磁辐射(例如IR仪器)和DXR(即双X射线仪器)中的测量仪器,优选类似于测量吸光度的测量仪器,更具体地涉及测定 食物或饲料的性质,如牛奶或肉类中的脂肪含量。 本发明特别涉及通过在至少两个光谱范围内将物体暴露于电磁辐射特别是X射线来提供物体的种类测量属性的从属仪器的校正的方法,并获得一个或多个物体 回应。 获得的响应优选地基于通过使用一个或多个检测器来检测物体中的/从物体的电磁辐射的衰减和/或反射和/或散射,并且以其直接或经由 转型。

    METHOD OF AND AN APPARATUS FOR DETERMINING DIETARY FIBER AND A SAMPLE CONTAINER SYSTEM FOR USE THEREIN

    公开(公告)号:US20240192188A1

    公开(公告)日:2024-06-13

    申请号:US18554881

    申请日:2022-04-05

    Inventor: Thomas PALM

    Abstract: A sample container system for use in a method for determining dietary fiber comprises a sample container and a magnetic mixer. The sample container has a floor and a rigid side-wall upstanding therefrom to together delimit a sample containing space, wherein the floor includes a porous filter portion. The magnetic mixer has at least one concentrically arranged rotor-stator, each of the at least one concentrically arranged rotor-stator including a rotor and a stator, the rotor and the stator defining therebetween an annular shear gap, the rotor configured to rotate relative to the stator, the stator including a stator body having a first plurality of openings therethrough, the rotor including a magnetic coupling and a rotor body having a second plurality of openings therethrough, the magnetic coupling configured to couple with and follow an externally generated rotating magnetic field to cause the rotor to rotate in relation to the stator.

    Sampling device, a system comprising the sampling device and a method

    公开(公告)号:US11918997B2

    公开(公告)日:2024-03-05

    申请号:US17270990

    申请日:2019-08-07

    Abstract: 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).

    METHOD OF AND ANALYSER FOR THE OPTICAL ANALYSIS OF A LIQUID CONTAINING A DISSOLVED GAS

    公开(公告)号:US20230393112A1

    公开(公告)日:2023-12-07

    申请号:US18249652

    申请日:2021-09-30

    CPC classification number: G01N33/146 G01N21/31 G01N21/85 G01N2021/8571

    Abstract: A method of performing an optical analysis of a liquid containing dissolved gas includes transferring an amount of the liquid containing the dissolved gas from a reservoir into a holder of a flow system of the optical analyser, holding the amount of the liquid in the holder at around ambient pressure for a period such that a portion of the dissolved gas is expelled from the amount of liquid held in the holder while the holder is open to a waste reservoir, transferring at least a portion of the amount of the liquid containing the dissolved gas held in the holder under a pressure above ambient into a measurement cell of the optical analyser as a liquid sample, and performing the optical analysis of the liquid sample from a detection of optical radiation by an optical detector after its interaction with the liquid sample in the measurement cell.

    SAMPLE TEST CASSETTE AND ANALYTE TEST SYSTEM UTILIZING THE SAME

    公开(公告)号:US20230036668A1

    公开(公告)日:2023-02-02

    申请号:US17789689

    申请日:2020-11-25

    Abstract: A sample test cassette includes an inlet configured to introduce a sample liquid into the sample test cassette; an elongate channel configured to receive an elongate lateral flow test strip and configured with a first end that is configured to be in liquid communication with the inlet; and a mechanical transport system that is an integral part of the sample test cassette and is configured to generate a flow of the sample liquid from outside of the inlet and towards the first end of the elongate channel.

    HYDRODYNAMIC FOCUSING DEVICE
    50.
    发明申请

    公开(公告)号:US20230003630A1

    公开(公告)日:2023-01-05

    申请号:US17779344

    申请日:2020-12-01

    Abstract: A hydrodynamic focusing device comprises first and second flow channels; a wall at least partially defining an envelopment region connected in-line between the first and second flow channels which collectively define a flow direction extending therethrough; and a chimney comprising a body and a sample fluid inlet, extending from the wall and into the envelopment region. The sample fluid inlet faces at least partially perpendicular to the flow direction in the envelopment region, such that the sample fluid inlet is configured to supply a sample fluid into the envelopment region in a direction that is at least partially perpendicular to the flow direction. The body and the sample fluid inlet each have an elongate profile which has a rounded leading edge facing the first flow channel and opposing long edges connecting the leading and trailing edges and tapered towards the trailing edge.

Patent Agency Ranking