比较四个不同的过氧化氢生物污染验证过程

有不同的方法可以验证蒸发的过氧化氢生物污染过程正在有效地工作，每种过程都有自己的利弊。让我们看一下方法及其比较。

1。Chemical indicators (CIs)have been in use for a long time. While inexpensive and easy to use, they only give a positive or negative result, with the color of the indicator changing if vaporized hydrogen peroxide has been present in the process.

2。生物指标（BIS）在市场上已经有好几年了，必须将其包括在验​​证运行中才能遵守法规。尽管它们给出定量结果，但它们不是最快的验证方法，因为必须将样品管孵育7天。结果表明，不育保证水平（SAL）是否已达到目标水平10^-6。This means that the number of microbes is less than one in the specific location where the biological indicator was placed during the bio-decontamination process.

3。enzyme indicators (EIs)立即取得结果，但有一些缺点，包括大量的手动工作。像bis一样，它们也给出定量结果，但不能实时实时测量。也像bis一样，与EIS一样，您知道SAL是否已达到目标水平10^-6。

4。PEROXCAP technologyis a new option launched by Vaisala in 2017. TheVaisalaPEROXCAP® HPP272是专门针对使用蒸发H₂o₂。The probe gives continuous and quantitative measurements of vaporized hydrogen peroxide ppm concentration, temperature, and humidity – both relative humidity (%RH) and relative saturation (%RS). As the technology doesn’t indicate whether the microorganisms are dead, it is best used in conjunction with biological indicators to add the benefits of real-time, accurate measurement data.

阅读更多有关Vaisala Peroxcap技术或参观HPP272 product page。