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Based on the enhancement of Rayleigh light scattering of rhodamine B by nucleic acids under acidic condition at 378nm, a new method for determination of nucleic acids in aqueous solutions has been developed. This assay has a wide linear range for calf thymus DNA (0.10–16.0μgml −1 ). Besides its high sensitivity, it has some other advantages: rapidity of reaction (<2min), simplicity of operation...
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