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400mg／L二氧化氯溶液杀灭布片上大肠杆菌O157：H7的D值为1．53min，浓度系数为1．36，温度系数为1．63。溶液呈酸性时，杀菌效果较好，pH值＞7者明显下降。当菌悬液含20％小牛血清时，杀菌作用明显减弱。
The D value of E. coli O157: H7 which was killed by 400mg / L chlorine dioxide solution was 1.53min, the concentration coefficient was 1.36 and the temperature coefficient was 1.63. When the solution is acidic, bactericidal effect is better, pH> 7 were significantly decreased. When the bacterial suspension containing 20% calf serum, bactericidal effect was significantly reduced.