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用电子自旋共振仪检测维生素Ｃ和硫酸铜混合液的自由基波谱，及其灭活ｆ＿２噬菌体作用。结果表明，维生素Ｃ自由基有较强的灭活噬菌体作用。硫酸铜可提高维生素Ｃ自由基强度，并加速其灭活噬菌体的作用。
The free radical spectra of vitamin C and copper sulfate mixtures were detected by electron spin resonance and their inactivation of f_2 phage was studied. The results showed that vitamin C free radical has a strong role in inactivation of phage. Copper sulfate increases vitamin C radical strength and accelerates its inactivation of phage.