会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 3. 发明授权
    • Chromatogram peak purity determination apparatus
    • 色谱峰纯度测定装置
    • US09453825B2
    • 2016-09-27
    • US13603174
    • 2012-09-04
    • Yasuhiro Mito
    • Yasuhiro Mito
    • G01N30/86
    • G01N30/8634G01N30/8693
    • An apparatus and a method for chromatogram peak purity determination are provided, where the chromatogram's dimensions consist of retention time, wavelength and absorbance. The apparatus or method accumulates, at each retention time, absorbance in the wavelength direction for all or a part of a wavelength range in a predetermined retention time range; extracts a plurality of groups where, for each group, the absorbance accumulation value is the same for one point on a rising slope and one point on a falling slope regarding a peak that exists on a chromatogram that is prepared based on a 2-dimensional data whose dimensions are absorbance accumulation value and retention time; calculates similarities between absorption spectrum pattern at one point on the rising slope and at one point on the falling slope for each group; and determines from the plurality of groups, whether the peak consists of a single component based on similarity.
    • 提供了一种用于色谱峰纯度测定的仪器和方法,其中色谱图的尺寸由保留时间,波长和吸光度组成。 该装置或方法在每个保留时间内在预定的保持时间范围内累积波长范围的全部或部分波长方向的吸光度; 提取多个组,其中对于每个组,对于在基于二维数据准备的色谱上存在的峰,吸光度积累值对于上升斜坡上的一个点和下降斜率上的一个点是相同的 其尺寸为吸光度积累值和保留时间; 计算上升斜坡上一个点的吸收光谱图与每组下降斜率上的一个点的相似度; 并且从多个组确定该峰是否由基于相似性的单个分量组成。
    • 4. 发明授权
    • Fraction purity measuring apparatus for chromatogram peak
    • 用于色谱峰的馏分纯度测定装置
    • US6002986A
    • 1999-12-14
    • US792404
    • 1991-11-15
    • Yasuhiro Mito
    • Yasuhiro Mito
    • G01J3/28G01N30/74G01N30/82G01N30/86G01N35/08B01D15/08G01N21/00
    • G01N30/82G01N30/8624G01J2003/2873G01N2201/12753G01N30/74G01N30/8689G01N35/085
    • A detection signal from a multi-wavelength detector provided in a liquid chromatograph is stored in a data storage part, and a chromatogram is formed from the stored data with respect to a specific wavelength, to detect a peak from the chromatogram. The spectrum at a top of the peak to be identified or a known spectrum of a component to be identified is used as a reference spectrum, to calculate the degree of coincidence between the spectrum at each position of the chromatogram peak and the reference spectrum as fraction purity at each position of the chromatogram peak. The calculated fraction purity values are classified in colors, for example, and displayed on a display part. Thus, it is possible to readily decide whether the measured peak consists of a single component or at least two components, and which time range consists of a single component.
    • 将从液相色谱仪中提供的多波长检测器的检测信号存储在数据存储部分中,并根据存储的数据相对于特定波长形成色谱图,以检测色谱图中的峰。 将要鉴定的峰的顶部的光谱或待鉴定的组分的已知光谱用作参考光谱,以计算色谱峰的每个位置的光谱与参考光谱之间的一致度作为分数 纯度在色谱峰的每个位置。 计算的馏分纯度值例如分类为颜色,并显示在显示部分上。 因此,可以容易地确定测量的峰值是由单个分量还是至少两个分量组成,哪个时间范围由单个分量组成。
    • 5. 发明授权
    • Apparatus for and method of determining purity of a peak of a peak of a
chromatogram
    • 用于确定色谱峰的峰的纯度的装置和方法
    • US5596135A
    • 1997-01-21
    • US373573
    • 1995-01-13
    • Yasuhiro MitoHideki Minegishi
    • Yasuhiro MitoHideki Minegishi
    • G01N30/74G01N30/82G01N30/86G06F17/00G01N30/02
    • G01N30/8624G01N30/8689G01N30/82G01N30/8634
    • It is judged whether a part of a peak section of a chromatogram corresponding to a component of a sample is pure by comparing a similarity value of the absorbance spectrum of the part to a threshold value. The similarity value r and the threshold value t are calculated as follows. a) A series of absorbance spectra of a sample effluent from a column of the chromatograph are obtained repeatedly at a plurality of time points of short intervals. An absorbance spectrum is composed of a set of absorbance data with respect to wavelengths of light passing through the sample. b) A chromatogram of the sample is constructed using the series of absorbance spectra. c) A peak section including an object component of the sample is detected in the chromatogram. d) A similarity value is then calculated as a cosine of the angle between an absorbance spectrum vector and a standard spectrum vector. e) The threshold value is calculated by a cosine of the angle between two outermost tangential lines of an n-dimensional sphere centering an end of the absorbance spectrum vector and another n-dimensional sphere centering an end of the standard spectrum vector.
    • 通过将该部分的吸收光谱的相似值与阈值进行比较来判断与样品成分相对应的色谱图的峰部分的一部分是否为纯。 相似度值r和阈值t如下计算。 a)在短时间间隔的多个时间点重复获得来自色谱柱的样品流出物的一系列吸收光谱。 吸收光谱由相对于通过样品的光的波长的一组吸光度数据组成。 b)使用一系列吸光度光谱构建样品的色谱图。 c)在色谱图中检测包括样品的对象成分的峰部分。 d)然后将相似值计算为吸收光谱矢量与标准光谱矢量之间的角度的余弦值。 e)通过以吸收光谱向量的一端为中心的另一个n维球体与以标准光谱矢量的端点为中心的n维球体的两个最外切向线之间的角度的余弦来计算阈值。