PEG-20M毛細(xì)管柱 測定兒童防護(hù)口罩中環(huán)氧乙烷、環(huán)氧丙烷

。該方法適用于兒童防護(hù)口罩中環(huán)氧乙烷、環(huán)氧丙烷消毒有效成分的批量測定。 


Determination of ethylene oxide and propylene oxide in children's protective masks
Determination of ethylene oxide and propylene oxide in children's protective masks Details:

Name: capillary column
Specifications: 30m*0.32mm*0.25um
Model: PEG-20M
Application: Determination of ethylene oxide and propylene oxide in children's protective masks by purge and trap-gas chromatography-tandem mass spectrometry

Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. used purge and trap-gas chromatography-tandem mass spectrometry (P&T-GC-MS/MS) technology to determine the method of ethylene oxide and propylene oxide in children's protective masks. The sample was soaked with 4% acetic acid aqueous solution as the simulated solution, the target compounds in the soaking solution were enriched in the trapping tube by purging, and then entered into the gas chromatography after thermal desorption. 0.25μm) separation, gas chromatography tandem mass spectrometry multiple reaction monitoring mode for analysis and detection, internal standard method for quantification. The linear relationship between ethylene oxide and propylene oxide and the chromatographic peak area was good in the mass concentration range of 0.2～15 ng/mL, and the correlation coefficients of ethylene oxide and propylene oxide were 0.999 8 and 0.997 5, respectively. Both are 0.01 μg/g, which meets the limit requirements of GB/T 38880-2020 and relevant foreign standards. The recoveries of samples spiked were 91.5%-115.7%, and the relative standard deviation of the determination results was not more than 4.9% (n=6). This method is suitable for batch determination of ethylene oxide and propylene oxide disinfection active ingredients in children's protective masks.