PREPARING A PELLET FOR LASER INDUCED BREAKDOWN SPECTROSCOPY

    公开(公告)号:WO2022064287A1

    公开(公告)日:2022-03-31

    申请号:PCT/IB2021/056495

    申请日:2021-07-19

    Abstract: A press (2) for preparing a pellet of granulated material for laser induced breakdown spectroscopy comprises a tubular die (8) and a piston (4) arrangement, the tubular die (8) being formed with an inner surface (14) along which the piston (4) can slidably move and which is delimited by an open first end (10) of the tubular die (8;30;48a-d) and an opposing open second end (12) of the tubular die (8). The press (2) further comprises a removable end cap (18) having at least one flat face (24) for sealing the second end (12) of the tubular die (8).

    A METHOD OF PREPARING AN ORGANIC MATERIAL SAMPLE FOR LIBS ANALYSIS AND A SEARING DEVICE FOR USE IN THE SAME

    公开(公告)号:WO2022013621A1

    公开(公告)日:2022-01-20

    申请号:PCT/IB2021/053995

    申请日:2021-05-11

    Inventor: FADIL, Ahmed

    Abstract: A Method of Preparing an Organic Material Sample for LIBS Analysis and a Searing Device for Use in the Same An organic material sample is prepared for LIBS analysis by loading a sample pellet (508) comprising a compressed granular organic matrix into a holder (506) of a searing device (500) with an exposed surface (510) of the sample pellet (508) accessible to optical and to thermal radiation; searing the sample pellet (508) by directing thermal radiation from a heating unit (504) to the exposed surface (510); directing optical radiation from a reflectance unit (514) to the exposed surface (510) and measuring searing induced changes in the reflectance of the exposed surface (510); and controlling the heating unit (504) to direct thermal radiation to the exposed surface (510) for a time calculated by a data processor (516) in dependence of the measured searing induced changes in the reflectance.

    STANDARDIZING THE OUTPUT OF AN ELECTRICAL PROPERTY SENSOR USING A REFERENCE MAGNITUDE OBTAINED BY AN OPTICAL SPECTROMETER

    公开(公告)号:WO2021038315A1

    公开(公告)日:2021-03-04

    申请号:PCT/IB2020/055064

    申请日:2020-05-28

    Abstract: A method of standardizing an output of an electrical property sensor (300) comprising the steps of: comparing in a data processor a measured magnitude (Condm) of the electrical property of an electrically conductive liquid obtained with the electrical property sensor with a reference magnitude (Condr) of the electrical property (320); and determining in the data processor a standardization factor (F) dependent on a ratio of the reference magnitude (Condr) and the measured magnitude (Condm) (340); wherein there is provided a step of calculating the reference magnitude (Condr) (330) comprising obtaining by a spectrometer spectral data resulting from an interaction of electromagnetic radiation with the electrically conductive liquid (310); and applying in the data processor a mathematical model to the spectral data to calculate the reference magnitude (Condr), which mathematical model links spectral data to magnitude of the electrical property.

    LATERAL FLOW ASSAY DEVICE AND ANALYSER
    45.
    发明申请

    公开(公告)号:WO2020058782A1

    公开(公告)日:2020-03-26

    申请号:PCT/IB2019/056709

    申请日:2019-08-07

    Abstract: A device for performing a lateral flow assay (2) comprises: - a receptacle (4) having a bottom wall portion (14) closing a first end of the receptacle (4) to delimit an inner material receiving space (16) and having a receptacle opening (18) at a second end opposite the first end; - a compartment (8) for holding a lateral flow assay test strip (56), the compartment (8) having a lower portion (38) located closer to the first end of the receptacle (4) than to the second end; - a liquid passageway (10) in fluid communication with the inner material receiving space (16) and the lower portion (38); and - a lid (6) adapted to overlay the receptacle opening (18) and comprising a body portion (20) having an outer periphery (22);wherein - a sample receiving portion (24) is located in said body portion (20) and is arranged in liquid communication with the inner material receiving space (16); and wherein - the liquid passageway (10) is delimited by a first opening (40) into the lower portion (38) of the compartment (8) and a second opening (26) in the lid (6).

    METHOD FOR PREPARING A SAMPLE FOR LASER INDUCED BREAKDOWN SPECTROSCOPY
    46.
    发明申请
    METHOD FOR PREPARING A SAMPLE FOR LASER INDUCED BREAKDOWN SPECTROSCOPY 审中-公开
    制备激光诱导击穿光谱样品的方法

    公开(公告)号:WO2018046981A1

    公开(公告)日:2018-03-15

    申请号:PCT/IB2016/055342

    申请日:2016-09-08

    Abstract: A method (2) for preparing a sample of organic material for laser induced breakdown spectroscopy (LIBS) comprising the steps of obtaining granular organic material (4); forming at least a portion of the granular organic material into a sample pellet (6); and of searing the organic material (8, 8'), preferably only at a surface on which LIBS analysis is to be performed (8). Optionally the method (2) includes a step (10) of pressing the seared sample pellet to consolidate the material comprising the seared upper surface.

    Abstract translation: (2),其用于制备用于激光诱导击穿光谱(LIBS)的有机材料样品,其包括获得颗粒状有机材料(4)的步骤; 将至少一部分粒状有机材料形成为样品小球(6); 并且优选仅在要进行LIBS分析的表面(8)上灼烧有机材料(8,8')。 任选地,方法(2)包括压制烤制的样品小丸以巩固包含烧制的上表面的材料的步骤(10)。

    DETERMINATION OF ANALYTES IN A SAMPLE MATRIX BY SOLVENT EXTRACTION
    47.
    发明申请
    DETERMINATION OF ANALYTES IN A SAMPLE MATRIX BY SOLVENT EXTRACTION 审中-公开
    通过溶剂萃取法确定样品基质中的分析物

    公开(公告)号:WO2016063104A1

    公开(公告)日:2016-04-28

    申请号:PCT/IB2014/065461

    申请日:2014-10-20

    Abstract: Determination of Analytes in a Sample Matrix by Solvent Extraction A method for the assay of one or more analytes in a sample matrix comprising the steps of: performing analyte extraction on the sample matrix, said analyte extraction comprising combining the sample matrix with a solvent for an extraction period which is less than that required for reaching equilibrium; and separating the analyte containing solvent from the sample matrix; next measuring a level of analyte present in the separated solvent; and then applying in a computer a calibration by which is established a mathematical relationship between levels of analyte extracted from each of a plurality of reference samples by means of the process employed above in the extraction for the sample matrix and a reference value of the levels of analyte for each reference sample to thereby derive a measure of the level of analyte in the sample matrix. Specifically a method to determine the amount of mycotoxins in cereal grain, especially OTA (ochratoxin A) and DON (deoxynivalenol) by mixing with a solvent comprising water alcohol mixture, with 20-40% ethanol by volume.

    Abstract translation: 通过溶剂萃取测定样品基质中的分析物一种用于测定样品基质中一种或多种分析物的方法,包括以下步骤:在样品基质上进行分析物提取,所述分析物提取包括将样品基质与溶剂组合,用于 提取时间小于达到平衡所需的时间; 并从样品基质中分离含有分析物的溶剂; 接下来测量分离的溶剂中存在的分析物的水平; 然后在计算机中应用校准,通过该校准建立了从多个参考样本中的每一个提取的分析物的水平之间的数学关系,借助于上述在样本矩阵的提取中使用的过程以及水平的参考值 分析物,从而得到样品基质中分析物水平的量度。 具体地说,一种通过与包含水醇混合物的溶剂与体积为20-40%乙醇的混合来测定谷粒中尤其是OTA(赭曲霉毒素A)和DON(脱氧雪腐镰刀菌烯醇)的霉菌毒素的量的方法。

    METHOD FOR COMPENSATING AMPLITUDE DRIFT IN A SPECTROMETER AND SPECTROMETER PERFORMING SAID METHOD
    48.
    发明申请
    METHOD FOR COMPENSATING AMPLITUDE DRIFT IN A SPECTROMETER AND SPECTROMETER PERFORMING SAID METHOD 审中-公开
    用于补偿光谱仪中的放大率的方法和执行该方法的光谱仪

    公开(公告)号:WO2013026466A1

    公开(公告)日:2013-02-28

    申请号:PCT/EP2011/064302

    申请日:2011-08-19

    CPC classification number: G01N21/255 G01J3/28 G01J3/45

    Abstract: A method of compensating for amplitude drift in a spectrometer comprising: making successive performances of a standardisation process to generate, at each performance, a mathematical transform to compensate for amplitude drift for application by an arithmetic unit to a spectrum obtained by the spectrometer in an interval between the performances; modifying the mathematical transform with a function dependent on spectral data from a zero material measured in association with the standardisation process and the single beam zero spectrum measured in an interval between performances; and applying the modified mathematical transform to a spectrum from an unknown sample.

    Abstract translation: 一种补偿光谱仪中的幅度漂移的方法,包括:进行标准化处理的连续性能,以在每次执行时产生数学变换,以补偿由运算单元施加到由光谱仪在间隔中获得的光谱的幅度漂移 表演之间; 使用与标准化过程相关联测量的零物质的光谱数据和在性能间隔内测量的单光束零光谱来修改数学变换; 并将修改的数学变换应用于来自未知样本的光谱。

    SAMPLE CONTAINER FOR USE IN FAT DETERMINATION
    49.
    发明申请
    SAMPLE CONTAINER FOR USE IN FAT DETERMINATION 审中-公开
    用于脂肪测定的样品容器

    公开(公告)号:WO2010003457A1

    公开(公告)日:2010-01-14

    申请号:PCT/EP2008/058942

    申请日:2008-07-09

    CPC classification number: B01D11/0288 B01L3/502 G01N1/4055 G01N2001/4061

    Abstract: The invention covers a method of determining fat in a sample, a Soxhlet sample container and a means of filtration (120, 220, 320, 420) for use in a Soxhlet sample container characterised in that said means of filtration is configured to, support hydrolysis by allowing an unaided flow of acid, base and water while retaining fat and to support extraction of fat by allowing an unaided flow of solvent and fat solubilised in solvent.

    Abstract translation: 本发明涵盖了用于在索格利特样品容器中使用的样品中的脂肪,索格利特样品容器和过滤装置(120,220,320,420)的方法,其特征在于,所述过滤装置构造成支持水解 通过允许酸,碱和水的无载流动同时保留脂肪并通过允许溶剂溶解的溶剂和脂肪的无偿流动来支持脂肪的提取。

    INFRARED MONITORING OF BIOALCOHOL PRODUCTION
    50.
    发明申请
    INFRARED MONITORING OF BIOALCOHOL PRODUCTION 审中-公开
    生物醇生产的红外监测

    公开(公告)号:WO2009121416A1

    公开(公告)日:2009-10-08

    申请号:PCT/EP2008/054096

    申请日:2008-04-04

    CPC classification number: C12P7/04 G01N21/3577 G01N33/146 G01N2201/129

    Abstract: A device for determining one or more parameters of interest for raw materials, intermediates and products of bioalcohol production, comprising a sample presentation unit, a source of radiation and a means of detection characterised in that the source of radiation and the means of detection are configured for recorded one or more spectral characteristics in the spectral region from 1000 cm-1 to 5000 cm-1.

    Abstract translation: 一种用于确定生物醇生产的原料,中间体和产物的一个或多个感兴趣参数的装置,包括样品呈现单元,辐射源和检测手段,其特征在于,配置辐射源和检测装置 用于在1000cm -1至5000cm -1的光谱区域中记录一个或多个光谱特征。

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