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实验室试验表明,抗坏血酸与铜离子在水中对大肠杆菌有协同杀灭作用。此作用在酸性条件(pH 6)下较弱,在碱性条件(pH 8)下较强。
Laboratory tests show that ascorbic acid and copper ions have a synergistic killing effect on Escherichia coli in water. This effect is weaker under acidic conditions (pH 6) and stronger under alkaline conditions (pH 8).