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    • 4. 发明申请
    • ISOLATING NUCLEIC ACID
    • 分离核酸
    • WO2003091452A1
    • 2003-11-06
    • PCT/IB2003/001553
    • 2003-04-22
    • QIAGEN ASDEGGERDAL, ArneSKAGESTAD, Vidar
    • DEGGERDAL, ArneSKAGESTAD, Vidar
    • C12Q1/68
    • C12N15/1013C12Q1/6806C12Q2563/143C12Q2527/125
    • A process for isolating nucleic acid from a nucleic acid- containing biological sample, which comprises: (a) providing magnetic particles capable of binding nucleic acid; (b) contacting the sample with the magnetic particles so as to bind the nucleic acid thereto; (c) forming an aggregate of the magnetic particles by the application of a magnetic field, which aggregate comprises magnetic particles with the nucleic acid bound thereto and contaminants from the biological sample; (d) contacting the aggregate with a washing solution to disperse the aggregate and release the contaminants therefrom; and (e) separating therefrom the magnetic particles with the nucleic acid bound thereto; wherein the aggregate is formed in the presence of an amount of a water-miscible lower alcohol sufficient to facilitate dispersion of the aggregate and release of the contaminants therefrom when washed in step (d), with the proviso that, when the magnetic particles are silica-based magnetic glass particles provided with the water-miscible lower alcohol, the water-miscible lower alcohol is part of an aqueous mixture which further comprises a salt.
    • 一种用于从含核酸的生物样品中分离核酸的方法,其包括:(a)提供能够结合核酸的磁性颗粒; (b)使样品与磁性颗粒接触以使核酸与其结合; (c)通过施加磁场形成磁性颗粒的聚集体,该聚集体包含与其结合的核酸的磁性颗粒和来自生物样品的污染物; (d)使聚集体与洗涤溶液接触以分散聚集体并从其中释放污染物; 和(e)与其结合的核酸与其分离; 其中所述聚集体在一定量的水混溶性低级醇存在下形成,所述量可以在步骤(d)中洗涤时足以促进聚集体的分散和其中的污染物的释放,条件是当磁性颗粒是二氧化硅 提供有水混溶性低级醇的基于水的磁性玻璃颗粒,水混溶性低级醇是进一步包含盐的含水混合物的一部分。
    • 6. 发明申请
    • RNA ISOLATION METHOD
    • RNA分离方法
    • WO2009040444A1
    • 2009-04-02
    • PCT/EP2008/063039
    • 2008-09-29
    • MOLE GENETICS ASDEGGERDAL, ArneCAMPBELL, AndrewBOGER, Veronica
    • DEGGERDAL, ArneCAMPBELL, AndrewBOGER, Veronica
    • C12N15/10C12Q1/68
    • C12N15/1006C12N15/1013
    • A method for isolating RNA from a biological sample, which comprises: (i) treating the sample with a lysis solution comprising a detergent at a pH of greater than 6 to form a lysate comprising an RNA-containing liquid phase; (ii) contacting the lysate with a first solid phase bearing a positive charge in the presence of a salt so as to precipitate DNA and protein from the RNA- containing liquid phase onto the first solid phase; (iii) separating the RNA-containing liquid phase from the solid phase; (iv) contacting the RNA-containing liquid phase with a non-ionic solid phase in the presence of a lower alcohol comprising ethanol or propanol to precipitate RNA onto the non-ionic solid phase to form an RNA-containing solid phase; (v) separating the RNA-containing solid phase from the liquid phase; and (vi) isolating RNA therefrom.
    • 一种用于从生物样品中分离RNA的方法,其包括:(i)用pH大于6的包含洗涤剂的裂解溶液处理样品以形成包含含RNA液相的裂解物; (ii)在盐的存在下使裂解物与带有正电荷的第一固相接触,以将DNA和蛋白质从含RNA液相沉淀到第一固相上; (iii)将含RNA的液相与固相分离; (iv)在含有乙醇或丙醇的低级醇存在下将含RNA的液相与非离子固相接触以将RNA沉淀到非离子固相上以形成含RNA的固相; (v)从液相中分离含RNA固相; 和(vi)从其中分离RNA。