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凯发sports登录

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紫外手持杀菌灯的介绍

作者:发表时间:2020-05-12
      一般常用的手持杀菌灯是低压汞气灯,在c波段的253.7nm处有一条强线谱。用石英制成灯管,两端各有一对钨丝自燃氧化电极。电极上镀有钡和锶的碳酸盐,管内有少量的汞和氩气。紫外灯开燃时,电极放出电子,冲击汞气分子,从而放出大量波长253.7nm的紫外线。

      影响紫外灯辐射强度和灭菌效果的因素紫外灯辐射强度和灭菌效果受多种因素的影响。常见的影响因素主要有电压、温度、湿度、距离、角度、空气含尘率紫外灯的质量、照射时间和微生物数量等。


      本凯发sports登录是一款便携式手持杀菌灯,机身轻巧、操作方便。使用LED发出适当波长的紫外线,能够破坏微生物机体细胞中的DNA或者RNA的分子结构,造成生长性细胞死亡和(或)再生性细胞死亡,达到杀菌消毒效果。

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