Chromosorb 101 HP60～80目填充柱 测定医用口罩中痕量环氧乙烷GB 15979-2002

仪器：GC-气相色谱仪，氢焰检测器(FID)。

柱：Chromosorb 101 HP60～80目；玻璃柱长2m，φ 3 mm。柱温：120℃。

检测器：150℃。

气化器：150℃。

载气量：氮气：35 mL/min。

氢气：35 mL/min。

空气：350 mL/min。

柱前压约为108 kPa。
应用：GB 15979-2002 一次性使用卫生用品卫生标准

浩瀚色谱（山东）应用技术开发有限公司建立了吹扫捕集-气相色谱/质谱法测定医用口罩中痕量环氧乙烷的方法。采用吹扫捕集法对医用口罩中环氧乙烷进行富集,热脱附后导入气相色谱/质谱仪,并选用选择离子模式（SIM）进行检测,内标法定量。结果表明:环氧乙烷在5.0～200μg/L质量浓度范围内线性关系良好,相关系数为0.9992,方法检出限为0.03μg/g,定量限为0.10μg/g。三个不同浓度加标水平（5.0μg/L、20μg/L、80μg/L）的回收率为97.59%～115.95%,相对标准偏差（RSD,n=6）为3.07%～7.48%。该方法操作简单、富集效率高、快速准确,适用于大批量医用口罩样品测定。 

测定医用口罩中痕量环氧乙烷GB 15979-2002   测试谱图：



Determination of trace amounts of ethylene oxide in medical masks GB 15979-2002
Determination of trace amounts of ethylene oxide in medical masks GB 15979-2002 Details:

Apparatus: GC- gas chromatograph, hydrogen flame detector (FID).

Column: Chromosorb 101 HP60-80 mesh; glass column length 2m, φ 3 mm. Column temperature: 120°C.

Detector: 150°C.

Vaporizer: 150°C.

Carrier gas volume: nitrogen: 35 mL/min.

Hydrogen: 35 mL/min.

Air: 350 mL/min.

The pre-column pressure is about 108 kPa.
Application: GB 15979-2002 Hygiene Standard for Disposable Hygiene Products

Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. has established a method for the determination of trace amounts of ethylene oxide in medical masks by purge and trap-gas chromatography/mass spectrometry. The ethylene oxide in the medical masks was enriched by the purge and trap method, and then introduced into a gas chromatography/mass spectrometer after thermal desorption. The results showed that the linear relationship of ethylene oxide was good in the mass concentration range of 5.0～200μg/L, the correlation coefficient was 0.9992, the detection limit was 0.03μg/g, and the quantification limit was 0.10μg/g. The recoveries of the three spiked levels (5.0μg/L, 20μg/L, 80μg/L) were 97.59%-115.95%, and the relative standard deviations (RSD, n=6) were 3.07%-7.48%. The method is simple to operate, has high enrichment efficiency, is fast and accurate, and is suitable for the determination of large quantities of medical mask samples.

Determination of trace ethylene oxide in medical masks GB 15979-2002 test spectrum: