| 摘要 |
The object of the invention is formulations and methods without chaotropic components for the isolation of nucleic acids with binding to a solid phase, in particular of DNA, from arbitrary complex starting materials containing a lysis/binding buffer system manifesting at least one anti-chaotropic salt component, the concentration of the anti-chaotropic salt components being between 0.001 mM and 0.1 M, preferably 0.1 mM, and further a solid phase and washing and elution buffers which are known per se. The lysis/binding buffer system can exist as an aqueous solution or as a solid formulation in ready-to-use reaction vessels. As a solid phase, all carrier materials applied for isolation by means of chaotropic reagents can function, preferably glass fibre fleeces, glass membranes, silicone carriers, ceramics, zeoliths or materials possessing negatively functionalised surfaces or manifesting chemically modified surfaces which can be converted to a negative charging potential. The object of the invention is further a method for the isolation of nucleic acids, in particular of DNA, from arbitrary complex starting materials making use of the formulations according to the invention, characterised by lysis of the starting material, binding of the nucleic acids to a carrier material, washing of the nucleic acids bound to the carrier and elution of the nucleic acids. |
