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    • 4. 发明申请
    • Liquid chromatograph and analysis system
    • 液相色谱和分析系统
    • US20050016263A1
    • 2005-01-27
    • US10479412
    • 2001-04-08
    • Yoshio YamauchiTohru NatsumeToshiaki Isobe
    • Yoshio YamauchiTohru NatsumeToshiaki Isobe
    • G01N27/62G01N30/26G01N30/34G01N30/72G01N30/22G01N30/20
    • G01N30/34G01N30/7233G01N2030/8411
    • The present invention aims to provide a liquid chromatograph, an analysis system, and a gradient elution method, which are designed to permit a gradient change of eluent with higher precision and also permit a high sensitive detection or analysis. For attaining the object, there are provided: a liquid chromatograph having at least a liquid-feeding means 1 for flowing an eluent E at a predetermined flow rate, a sample-pouring means 9 for pouring a sample Sm into the eluent E, and a separation-column means 13 for separating a solute So contained in the sample Sm into components, comprising an eluent-selecting means 8 for forming branched flow paths 7 having predetermined volumes by dividing a flow path 3 of the eluent E fed from the liquid-feeding means 1, temporally storing eluents E1, E2, and soon in the branched flow paths 7, and pouring the sample Sm into the selected eluents E1, E2, and so on, and means for carrying out a gradient elution of a solute So; an analysis system comprising a mass spectrometer connected to the liquid chromatograph, and a gradient-elution method using the liquid chromatograph.
    • 本发明旨在提供一种液相色谱仪,分析系统和梯度洗脱方法,其被设计为允许更高精度的洗脱液梯度改变,并且还允许高灵敏度的检测或分析。 为了达到上述目的,提供了一种液相色谱仪,其至少具有用于以预定流量流动洗脱液E的液体供给装置1,用于将样品Sm倾倒入洗脱液E的样品注入装置9,以及 用于将包含在样品Sm中的溶质So分离成分量的分离柱装置13,包括用于形成具有预定体积的分支流路7的洗脱液选择装置8,其中通过将从进液 方法1,在分支流路7中临时储存洗脱液E1,E2并且快速地将样品Sm注入到选定的洗脱液E1,E2等中,以及用于进行溶质So的梯度洗脱的装置; 包括与液相色谱仪连接的质谱仪的分析系统和使用液相色谱仪的梯度洗脱方法。
    • 5. 发明授权
    • Biopolymer automatic identifying method
    • 生物聚合物自动识别方法
    • US07680609B2
    • 2010-03-16
    • US10526464
    • 2003-09-04
    • Tohru NatsumeHiroshi Nakayama
    • Tohru NatsumeHiroshi Nakayama
    • G01N27/62G01N27/70H01J49/26G01N33/483
    • H01J49/0009Y10T436/143333Y10T436/24
    • The invention aims to provide a highly accurate automatic biopolymer determination technique utilizing mass spectrometry whereby calibration prior to measurement or the addition of an internal standard to a sample can be eliminated. The biopolymer automatic identifying method of the invention comprises: retrieving a candidate molecule by matching an observed mass value X obtained by mass spectrometry with a predetermined database; selecting an arbitrary number of candidate molecules with high similarity scores; calibrating the observed mass value X using the candidate molecule as an internal standard; calculating relative error Ec between a calibrated mass value Xc and a theoretical mass value M of the candidate molecule; determining the standard deviation SEc of the relative error; determining a tolerance Tc of database search from the standard deviation SEc; and repeating a database search based on the tolerance Tc.
    • 本发明旨在提供使用质谱法的高精度自动生物聚合物测定技术,由此可以消除在测量之前进行校准或向样品中添加内标物。 本发明的生物聚合物自动识别方法包括:通过将通过质谱法获得的观察质量值X与预定数据库相匹配来检索候选分子; 选择具有高相似性分数的任意数量的候选分子; 使用候选分子作为内标校准观察到的质量值X; 计算校准质量值Xc与候选分子的理论质量值M之间的相对误差Ec; 确定相对误差的标准偏差SEc; 从标准偏差SEc确定数据库搜索的容差Tc; 并基于公差Tc重复数据库搜索。
    • 7. 发明授权
    • Liquid chromatograph and analysis system
    • 液相色谱和分析系统
    • US07066011B2
    • 2006-06-27
    • US10479412
    • 2001-04-08
    • Yoshi YamauchiTohru NatsumeToshiaki Isobe
    • Yoshi YamauchiTohru NatsumeToshiaki Isobe
    • G01N1/00G01N30/00B01D15/08
    • G01N30/34G01N30/7233G01N2030/8411
    • The present invention aims to provide a liquid chromatograph, an analysis system, and a gradient elution method, which are designed to permit a gradient change of eluent with higher precision and also permit a high sensitive detection or analysis. For attaining the object, there are provided: a liquid chromatograph having at least a liquid-feeding means for flowing an eluent E at a predetermined flow rate, a sample-pouring means for pouring a sample Sm into the eluent E, and a separation-column means for separating a solute So contained in the sample Sm into components, comprising an eluent-selecting means for forming branched flow paths having predetermined volumes by dividing a flow path of the eluent E fed from the liquid-feeding means, temporally storing eluents E1, E2, and soon in the branched flow paths, and pouring the sample Sm into the selected eluents E1, E2, and so on, and means for carrying out a gradient elution of a solute So; an analysis system comprising a mass spectrometer connected to the liquid chromatograph, and a gradient-elution method using the liquid chromatograph.
    • 本发明旨在提供一种液相色谱仪,分析系统和梯度洗脱方法,其被设计为允许更高精度的洗脱液梯度改变,并且还允许高灵敏度的检测或分析。 为了实现该目的,提供了一种液相色谱仪,其至少具有用于以预定流速流动洗脱液E的液体供给装置,用于将样品Sm倾倒到洗脱液E中的样品注入装置, 用于将包含在样品Sm中的溶质So分离成组分的柱装置,包括洗脱液选择装置,用于通过划分从进液装置供给的洗脱液E的流动路径形成具有预定体积的分支流路,暂时保存洗脱液E 在分支流动路径中,并将样品Sm倾倒入所选择的洗脱液E 1,E 2, 2等,以及用于进行溶质So的梯度洗脱的装置; 包括与液相色谱仪连接的质谱仪的分析系统和使用液相色谱仪的梯度洗脱方法。
    • 10. 发明申请
    • Biopolymer automatic identifying method
    • 生物聚合物自动识别方法
    • US20060100792A1
    • 2006-05-11
    • US10526464
    • 2003-09-04
    • Tohru NatsumeHiroshi Nakayama
    • Tohru NatsumeHiroshi Nakayama
    • G06F19/00
    • H01J49/0009Y10T436/143333Y10T436/24
    • The invention aims to provide a highly accurate automatic biopolymer determination technique utilizing mass spectrometry whereby calibration prior to measurement or the addition of an internal standard to a sample can be eliminated. The biopolymer automatic identifying method of the invention comprises: retrieving a candidate molecule by matching an observed mass value X obtained by mass spectrometry with a predetermined database; selecting an arbitrary number of candidate molecules with high similarity scores; calibrating the observed mass value X using the candidate molecule as an internal standard; calculating relative error Ec between a calibrated mass value Xc and a theoretical mass value M of the candidate molecule; determining the standard deviation SEc of the relative error; determining a tolerance Tc of database search from the standard deviation SEc; and repeating a database search based on the tolerance Tc.
    • 本发明旨在提供使用质谱法的高精度自动生物聚合物测定技术,由此可以消除在测量之前进行校准或向样品中添加内标物。 本发明的生物聚合物自动识别方法包括:通过将通过质谱法获得的观察质量值X与预定数据库相匹配来检索候选分子; 选择具有高相似性分数的任意数量的候选分子; 使用候选分子作为内标校准观察到的质量值X; 计算校准质量值Xc与候选分子的理论质量值M之间的相对误差Ec; 确定相对误差的标准偏差S E S ; 从标准偏差S 确定数据库搜索的容差Tc; 并基于公差Tc重复数据库搜索。