作业帮What is the function of a Durham tube?
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What is the function of a Durham tube?
What is the function of a Durham tube?
What is the function of a Durham tube?
Durham tubes are used in microbiology to detect production of gas by microorganisms.They are simply smaller test tubes inserted upside down in another test tube.This small tube is initially filled with the solution in which the microorganism is to be grown.If gas is produced after inoculation and incubation,a visible gas bubble will be trapped inside the small tube.The initial air gap produced when the tube is inserted upside down is lost during sterilization,usually performed at 121°C for 15 or so minutes
出处是英文的wiki
也就是大的试管里有一个小的气体收集管,通过小管子的气泡有无来判断在大试管里培养的微生物是不是产生了气体
图的话看下面地址的第一张图
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What is the function of a Durham tube?
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