chemistry

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Hi
I am zahra rashedi. I am student on my maser projects in sharif universityy of technology.In my project, I must be obtained optimal condition for sterilization of baby powder with Ethylene oxide. There are two problems. When baby powder was sterilizated with EtO, some of residue such as Ethylene oxide, Ethylene glycol, Ethylene chloro hydrin remained on my product. One of the most important of problems is measurement of these residues. Other problem is that I can not measure set pressure and gas concentration. Do you think, I must be changed my method for sterilization, or not. Please help me as soon as possible. I will wait for your answer.
Best Regards.

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