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    • 2. 发明申请
    • LIQUID DELIVERY DEVIDE AND LIQUID CHROMATOGRAPHY DEVICE
    • 液体输送和液相色谱装置
    • US20120055581A1
    • 2012-03-08
    • US13319111
    • 2010-05-24
    • Daisuke AkiedaKisaburo DeguchiHironori Kaji
    • Daisuke AkiedaKisaburo DeguchiHironori Kaji
    • B65B1/04B01D15/08
    • G01N30/32G01N2030/326
    • In a liquid delivery device, when an inlet-side check valve and an outlet-side check valve of a first cylinder are both closed, and compression of an eluent inside the first cylinder is started by means of a first plunger inside the first cylinder, a control unit doubles the rotational speed of a step motor, and measures the amount of change in the pressure inside the first cylinder which changes for a prescribed time by means of a first cylinder internal pressure detector. The time elapsed until the pressure inside the first cylinder is the same as the pressure inside a discharge-side flow passage is predicted using the rate of change over time of the pressure of the eluent. When the predicted elapsed time has elapsed, the rotational speed of the step motor is returned to the original speed, and the compression of the eluent inside the first cylinder is completed.
    • 在液体输送装置中,当第一气缸的入口侧止回阀和出口侧止回阀都被关闭时,借助于第一气缸内的第一柱塞开始第一气缸内的洗脱液的压缩, 控制单元使步进电机的转速加倍,并且通过第一气缸内压检测器来测量第一气缸内的压力变化达规定时间的变化量。 使用洗脱液的压力随时间的变化率预测在第一气缸内的压力与放电侧流路内的压力相同的时间。 当预测经过时间过去时,步进电机的转速恢复到原来的速度,并且完成了第一气缸内的洗脱液的压缩。
    • 9. 发明申请
    • Method and apparatus for analyzing multi-channel chromatogram
    • 用于分析多通道色谱图的方法和装置
    • US20060271310A1
    • 2006-11-30
    • US11501750
    • 2006-08-10
    • Masahito ItoKisaburo Deguchi
    • Masahito ItoKisaburo Deguchi
    • G01N31/00
    • G01N30/8624G01N30/8631G01N30/8679G01N2201/1293
    • A method for analyzing a multi-channel chromatogram is realized for accurately resolving overlapping peaks on a multi-channel chromatogram to permit analysis of the composition of a sample. First, components of overlapping peaks are specified. A data matrix Dij is determined, and compressed in the wavelength direction to obtain a data matrix vector Di. Next, the two-dimensional data is deconvoluted, final standard deviation s0 is registered, and the deconvoluted two-dimensional data is reconvoluted to a retention intensity matrix. A quantitative spectral intensity matrix is computed, components are identified, and the identified components are quantified. Subsequently, an eigenvalue problem is solved, and the number n of components is estimated. The deconvolution and computation of the eigenvalue problem are iteratively executed until the peaks are isolated. Then, elution profiles are calculated, the components are identified, and the identified components are quantified.
    • 实现了分析多通道色谱图的方法,用于准确地分辨多通道色谱图上的重叠峰,以便分析样品的组成。 首先,指定重叠峰的分量。 确定数据矩阵Dij,并在波长方向上压缩以获得数据矩阵向量Di。 接下来,对二维数据进行解卷积,记录最终标准偏差s0,并将解卷积的二维数据重新卷积到保留强度矩阵。 计算定量光谱强度矩阵,识别组件,并对所识别的组分进行量化。 随后,解决了特征值问题,并且估计了分量的数量n。 迭代执行反褶积和特征值问题的计算,直到峰被隔离。 然后,计算洗脱曲线,识别组分,并对所鉴定的组分进行定量。