Process for detecting and characterizing formation hydrocarbons
    332.
    发明授权
    Process for detecting and characterizing formation hydrocarbons 有权
    检测和表征地层烃的方法

    公开(公告)号:US06271518B1

    公开(公告)日:2001-08-07

    申请号:US09222720

    申请日:1998-12-29

    CPC classification number: G01N21/64 G01N33/241 G01N2201/129

    Abstract: The present invention relates to the exploration for and exploitation of formation hydrocarbons. According to the invention, a sample of material, representative of the impregnation with hydrocarbons of the rocks passed through, is taken during a drilling operation, with which sample a value of an emission flux, representative of the concentration of the fluorescent elements in the sample, and a value of a fluorescence quotient, which reflects the nature of the hydrocarbons present in the sample, are determined by spectrofluorimetry. The invention finds its application in analytical laboratories and on the drilling sites of petroleum production fields.

    Abstract translation: 本发明涉及地层烃的勘探和开采。 根据本发明,在钻井操作期间取代代表通过的岩石中碳氢化合物浸渍的材料样品,其中样品的排放通量值代表样品中荧光元素的浓度 ,并且通过分光荧光法测定反映样品中存在的烃的性质的荧光商值。 本发明适用于分析实验室和石油生产领域的钻井现场。

    Method and an apparatus for determining the content of a constituent of
blood of an individual
    334.
    发明授权
    Method and an apparatus for determining the content of a constituent of blood of an individual 失效
    用于确定个体血液成分含量的方法和装置

    公开(公告)号:US5817007A

    公开(公告)日:1998-10-06

    申请号:US591663

    申请日:1996-04-26

    Abstract: A method and an apparatus for determining the content of a constituent of blood of an individual are disclosed. In the method a whole blood stream is extracted from a blood vessel of said individual, the stream being directed through a path defining a substantially non-varying flow-through area wherein is provided a flow-through measuring cuvette including opposite first and second optical transparent surface parts defining an optical transmission path of the order of 0.5-2.0 mm. The whole blood stream flowing through the measuring cuvette is irradiated by irradiating the first optical transparent surface part of the measuring cuvette with multi-wavelength near infrared light. The near infrared absorption spectrum is detected and the content of the constituent is quantified on the basis of the detected near infrared absorption data. The method is particularly suited for measuring constituents of whole blood in an extracorporeal loop, for example in hemodialysis.

    Abstract translation: PCT No.PCT / DK94 / 00297 Sec。 371日期:1996年4月26日 102(e)日期1996年4月26日PCT 1994年8月1日PCT PCT。 出版物WO95 / 04266 日期:1995年2月9日公开了一种用于确定个体血液成分含量的方法和装置。 在该方法中,从所述个体的血管中提取全血流,所述流被引导通过限定基本上不变的流通区域的路径,其中设置有流通测量比色皿,其包括相对的第一和第二光学透明 表面部件限定0.5-2.0mm的光传输路径。 通过用多波长近红外光照射测量反应杯的第一光学透明表面部分来照射流过测量杯的全部血液。 检测近红外吸收光谱,并根据检测到的近红外吸收数据量化成分的含量。 该方法特别适用于测量体外循环中全血的成分,例如在血液透析中。

    Method and apparatus for determining the constituents of dairy products
    335.
    发明授权
    Method and apparatus for determining the constituents of dairy products 失效
    用于确定乳制品成分的方法和装置

    公开(公告)号:US5258620A

    公开(公告)日:1993-11-02

    申请号:US773921

    申请日:1991-10-30

    Abstract: A sample having a specific optical path length of 1 to 15 mm is irradiated with near infrared of two or more wavelengths selected from 700 to 1200 nm to determine constituents of dairy products. Preferably, a pair of specific wavelengths comprise a first wavelength having a high correlation with a target constituent and a second wavelength having a low correlation with the target constituent or comprise wavelengths both having high correlations with the target constitutent. Quantities of near infrared of these two specific wavelengths transmitted by the sample are measured to determine absorbencies and a multiple linear regression equation is used to calculate the constituent on the basis of the absorbencies.

    Abstract translation: 照射具有1〜15mm的特定光程长度的样品,从700〜1200nm的两个以上的波长的近红外线照射,测定乳制品的成分。 优选地,一对特定波长包括与目标成分具有高相关性的第一波长和与目标成分具有低相关性的第二波长或包括与目标成分具有高相关性的波长。 测量由样品传输的这两种特定波长的近红外光量以确定吸光度,并且使用多元线性回归方程式根据吸光度计算成分。

    Method of determining energy transfer efficiency of a donor-acceptor
pair of fluorescent dyes
    336.
    发明授权
    Method of determining energy transfer efficiency of a donor-acceptor pair of fluorescent dyes 失效
    确定荧光染料供体 - 受体对能量转移效率的方法

    公开(公告)号:US5237515A

    公开(公告)日:1993-08-17

    申请号:US683146

    申请日:1991-04-10

    CPC classification number: G01N21/6428 G01N2021/6421 G01N2201/129

    Abstract: The energy transfer efficiency of a donor-acceptor pair of fluorescent dyes can be determined by first measuring the fluorescence and absorption spectra of donor-protein, acceptor-protein, mixture of donor-protein and acceptor-protein, and donor-acceptor-protein conjugates, then separating the respective spectra into their respective donor-protein complex and acceptor-protein complex components using multiple linear regression, and then determining the transfer efficiency on the basis of the quenching of the donor fluorescence based on the spectral data thus obtained.

    Abstract translation: 供体 - 受体对荧光染料的能量转移效率可以通过首先测量供体 - 蛋白质,受体 - 蛋白质,供体 - 蛋白质和受体 - 蛋白质的混合物和供体 - 受体 - 蛋白质缀合物的荧光和吸收光谱来确定 ,然后使用多元线性回归将相应的光谱分离成它们各自的供体 - 蛋白质复合物和受体 - 蛋白质复合物组分,然后基于由此获得的光谱数据基于供体荧光的猝灭确定转移效率。

    Spectrometric method free from variations of error factors
    337.
    发明授权
    Spectrometric method free from variations of error factors 失效
    不符合错误因素变化的光谱方法

    公开(公告)号:US5227986A

    公开(公告)日:1993-07-13

    申请号:US639436

    申请日:1991-01-10

    CPC classification number: G01N21/31 G01J3/28 G01N2201/129

    Abstract: A spectrometric method for determining a physical or a chemical target quantity by performing the photometric measurement at plural wavelengths predetermined which includes the steps of measuring variation vectors by varying error variation factors by predetermined units which are defined in a space having a dimension equal to the number of the plural wavelengths, seeking for a subspace of the space which is orthogonal to all variation vectors, performing the photometric measurement for samples having known values of the target quantity, projecting vectors obtained from the photometric measurement for samples on the subspace and calculating a calibration curve using data obtained by the projection on the subspace.

    Method for the determinate evaluation of a chemistry analyzer's combined
diluting and analyzing systems
    338.
    发明授权
    Method for the determinate evaluation of a chemistry analyzer's combined diluting and analyzing systems 失效
    化学分析仪组合稀释和分析系统的确定性评估方法

    公开(公告)号:US5146413A

    公开(公告)日:1992-09-08

    申请号:US42864

    申请日:1987-04-24

    Applicant: Gary W. Shires

    Inventor: Gary W. Shires

    Abstract: A method for chemistry systems analysis to identify the performance of the functional components of the system, specifically, those of volumes dispensed and optical linearity. Employing a linear regression comparison between predetermined absorbance values, calculated from Beer's Law, and absorbance values obtained from the optical system under test, a value correction constant derived from the regression comparison may be applied to all subsequent absorbance values. Absorbance values, obtained from the optical system as a result of analyzing dilutions are by the pipetting system of material having a greater concentration but the same molar absorbtivity constant as the material used for the linearity evaluation, can be corrected to a value that does not reflect any optical system bias, and may be considered as the divident for the function of converting absorbance values into volumes dispensed. The divisor of the convertion function will be derived from the predetermined absorbance of the concentrate, using Beer's Law, and dividing that by the total volume requested by the volumes evaluation, leaving an absorbance value that equals a lul delivery. The volume dispensed by the pipetting system may then be calculated by dividing the corrected absorbance value by the lul absorbance value, yielding a quotient identifying the actual volume delivered.

    Abstract translation: 一种用于化学系统分析的方法,用于识别系统的功能组件的性能,特别是分配的体积和光学线性的性能。 采用从啤酒定律计算的预定吸光度值与从测试光学系统获得的吸光度值之间的线性回归比较,可以将所有随后的吸光度值应用于从回归比较得到的值校正常数。 作为分析稀释度的结果,从光学系统获得的吸光度值是通过具有较高浓度但与用于线性评估的材料相同的摩尔吸光度常数的材料的吸移系统可以校正为不反映的值 任何光学系统偏差,并且可以被认为是将吸光度值转换成分配的体积的函数的分数。 转换函数的除数将使用Beer定律从浓缩物的预定吸光度导出,并将其除以体积评估所要求的总体积,留下等于输送的吸光度值。 然后可以通过将校正的吸光度值除以lul吸光度值来计算由移液系统分配的体积,从而产生识别递送的实际体积的商。

    Apparatus and method for determining plant fluorescence
    339.
    发明授权
    Apparatus and method for determining plant fluorescence 失效
    用于确定植物荧光的装置和方法

    公开(公告)号:US5014225A

    公开(公告)日:1991-05-07

    申请号:US390905

    申请日:1989-08-08

    Abstract: An apparatus and method for determining the photosynthetic activity of a plant by determining the chlorophyll fluorescence of the plant is provided. The apparatus includes a light impermeable housing, a light to illuminate the housing, a light intensity in the housing and to adjust the light intensity controller. The light intensity may be between zero and 700 micromoles of photons per square meter per second. The monitor may be a photodiode protected by light filters which permit only light of wavelengths corresponding to plant fluorescence emission to pass to the photodiode. A computer analysis of the data obtained, corrects for Dark and Straylight signals in the housing and normalizes the data by correcting for the Fo fluorescence. A method of estimating Fo is provided which includes illuminating a light impermeable chamber housing a plant with light of a pre-determined intensity, measuring the fluorescence emission, determining the slope of a first regression line prior to full opening of the shutter; determining the slope of a second regression line of measurements after the shutter is fully opened and determining the intersecting point between these two lines. A method of determining the corrected and normalized fluorescence emissions from a plant is provided.

    Abstract translation: 提供了通过确定植物的叶绿素荧光来确定植物的光合活性的装置和方法。 该装置包括不透光的外壳,照亮外壳的光,外壳中的光强度并调节光强度控制器。 光强度可以在每平方米每秒零到700微摩尔的光子之间。 监视器可以是由仅允许对应于植物荧光发射的波长的光通过光电二极管的光过滤器保护的光电二极管。 对获得的数据进行计算机分析,校正外壳中的Dark和Straylight信号,并通过校正Fo荧光来对数据进行归一化。 提供一种估计Fo的方法,其包括用预定强度的光照射容纳植物的不透光室,测量荧光发射,确定在快门完全打开之前的第一回归线的斜率; 在快门完全打开之后确定第二回归测量线的斜率,并确定这两条线之间的相交点。 提供了确定来自植物的校正和归一化的荧光发射的方法。

Patent Agency Ranking