測定兒童防護口罩中環氧乙烷、環氧丙烷，液化石油氣，二甲醚，甲縮醛，乙縮醛，乙醇，室內空氣，焦爐煤氣，煉廠氣，天然氣，變壓器油，多氯聯苯，植物油，增塑劑，塑化劑，過氧化物

測定兒童防護口罩中環氧乙烷、環氧丙烷
測定兒童防護口罩中環氧乙烷、環氧丙烷 詳細信息：

名稱：毛細管柱
規格：30m*0.32mm*0.25um
型號：PEG-20M
應用： 吹掃捕集-氣相色譜-串聯質譜法測定兒童防護口罩中環氧乙烷、環氧丙烷

浩瀚色譜（山東）應用技術開發有限公司采用吹掃捕集–氣相色譜–串聯質譜（P&T–GC–MS/MS）技術了測定兒童防護口罩中環氧乙烷、環氧丙烷的方法。樣品采用4%乙酸水溶液作為模擬液浸泡處理,浸泡液中目標物通過吹掃富集于捕集管中,熱脫附后進入氣相色譜,采用PEG-20M型色譜柱（30 m×0.32 mm,0.25μm）分離,氣相色譜串聯質譜多反應監控模式進行分析檢測,內標法定量。環氧乙烷、環氧丙烷在質量濃度為0.2～15 ng/mL范圍內與色譜峰面積線性關系良好,環氧乙烷、環氧丙烷的相關系數分別為0.999 8、0.997 5,方法定量限均為0.01 μg/g,滿足GB/T 38880—2020及國外相關標準的限值要求。樣品加標回收率為91.5%～115.7%,測定結果的相對標準偏差不大于4.9%（n=6）。該方法適用于兒童防護口罩中環氧乙烷、環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.