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    • 3. 发明申请
    • AROMATIC PHOSPHONIUM SALTS AND THEIR USE AS LABELING REAGENTS MASS SPECTROMETRY ANALYSIS
    • 芳香族磷酸盐钠盐及其作为标签试剂的大分子量分析
    • WO2004092707A2
    • 2004-10-28
    • PCT/US2004/011426
    • 2004-04-14
    • WATERS INVESTMENTS LIMITEDGEBLER, John, C.LEE, Peter, J,. J.CHEN, Weibin
    • GEBLER, John, C.LEE, Peter, J,. J.CHEN, Weibin
    • G01N
    • G01N33/6848C07F9/5407C07F9/5442G01N33/6842G01N2458/15H01J49/164Y10T436/24
    • This invention relates to methods and reagents for the assay, detection, quantification, location, or analysis of each of a plurality of substances of interest ("analytes") in a sample in which each substance is labeled with a cationic triarylphosphonium group. The present invention also provides MALDI mass spectrometry techniques in which the analysis of samples containing low molecule weight analytes is not obscured by matrix components. The invention also provides labeling reagents for use in labeling analytes prior to MS analysis in which the labeled analytes have a molecular weight above the useful detection threshold of MALDI techniques. In some aspects, the invention provides methods of quantitative MS analysis of components of a sample. Methods of the present invention include sensitive techniques for desorption/ionization of molecules at the picomole, femtomole, and attomole amounts. Another benefit of the present invention is that measurement of m/Z values is not complicated by the low-mass interference that a matrix normally offers, and therefore the invention provides methods of MALDI MS analysis of low molecular weight samples as well as mixtures of high and low molecular weight samples.
    • 本发明涉及用于将每种物质用阳离子三芳基鏻基团标记的样品中的多种感兴趣物质(“分析物”)中的每一种的测定,检测,定量,定位或分析的方法和试剂。 本发明还提供MALDI质谱技术,其中含有低分子量分析物的样品的分析不被基质组分遮蔽。 本发明还提供用于在MS分析之前标记分析物的标记试剂,其中标记的分析物的分子量高于MALDI技术的有用检测阈值。 在一些方面,本发明提供了样品组分的定量MS分析方法。 本发明的方法包括在吡索莫斯,飞甲和阿托莫尔量下解吸/电离分子的敏感技术。 本发明的另一个好处是,通过基质通常提供的低质量干扰,m / Z值的测量并不复杂,因此本发明提供了低分子量样品的MALDI MS分析方法以及高分子量混合物 和低分子量样品。
    • 4. 发明申请
    • AROMATIC PHOSPHONIUM SALTS AND THEIR USE AS LABELING REAGENTS MASS SPECTROMETRY ANALYSIS
    • 芳香族磷酸盐钠盐及其作为标签试剂的大分子量分析
    • WO2004092707A3
    • 2006-01-05
    • PCT/US2004011426
    • 2004-04-14
    • WATERS INVESTMENTS LTDGEBLER JOHN CLEE PETER J JCHEN WEIBIN
    • GEBLER JOHN CLEE PETER J JCHEN WEIBIN
    • C07F9/54G01N20060101G01N33/68G01N24/00G01N33/00
    • G01N33/6848C07F9/5407C07F9/5442G01N33/6842G01N2458/15H01J49/164Y10T436/24
    • This invention relates to methods and reagents for the assay, detection, quantification, location, or analysis of each of a plurality of substances of interest ("analytes") in a sample in which each substance is labeled with a cationic triarylphosphonium group. The present invention also provides MALDI mass spectrometry techniques in which the analysis of samples containing low molecule weight analytes is not obscured by matrix components. The invention also provides labeling reagents for use in labeling analytes prior to MS analysis in which the labeled analytes have a molecular weight above the useful detection threshold of MALDI techniques. In some aspects, the invention provides methods of quantitative MS analysis of components of a sample. Methods of the present invention include sensitive techniques for desorption/ionization of molecules at the picomole, femtomole, and attomole amounts. Another benefit of the present invention is that measurement of m/Z values is not complicated by the low-mass interference that a matrix normally offers, and therefore the invention provides methods of MALDI MS analysis of low molecular weight samples as well as mixtures of high and low molecular weight samples.
    • 本发明涉及用于将每种物质用阳离子三芳基鏻基团标记的样品中的多种感兴趣物质(“分析物”)中的每一种的测定,检测,定量,定位或分析的方法和试剂。 本发明还提供MALDI质谱技术,其中含有低分子量分析物的样品的分析不被基质组分遮蔽。 本发明还提供用于在MS分析之前标记分析物的标记试剂,其中标记的分析物的分子量高于MALDI技术的有用检测阈值。 在一些方面,本发明提供了样品组分的定量MS分析方法。 本发明的方法包括在吡索莫斯,飞甲和阿托莫尔量下解吸/电离分子的敏感技术。 本发明的另一个好处是,通过基质通常提供的低质量干扰,m / Z值的测量并不复杂,因此本发明提供了低分子量样品的MALDI MS分析方法以及高分子量混合物 和低分子量样品。