【摘要】 目的测定钢瓶内和小包装内国产全氟乙烷(C2F6)和全氟丙烷(C3F8)的浓度。方法采用气像色谱法和质谱分析法对钢瓶内C2F6和C3F8测定,将钢瓶内C2F6和C3F8气体分别分装入15个专利小包装中,把15个C2F6和C3F8气体小包装分别平均分成3组,每组5个,常温下保存,用气像色谱法于分装后2周、3个月和1a后各测定其浓度。结果钢瓶内C3F8和C2F6的浓度均大于99.90%,无毒性成分,专利小包装中C2F6和C3F8气体在分装后2周浓度为93.05%和96.75%,3个月后为92.91%和97.29%,1a后为94.46%和95.32%.结论国产C2F6和C3F8气体纯度高,无毒性,专利小包装储存C2F6和C3F8,气体浓度稳定,可代替钢瓶储存气体应用于临床和科研。更多还原

【Abstract】 Objective To measure the concentration of home-made perfluoroethane （C₂F₆） and perfluoropropane （C₃F₈） in steel flask and in small packages.Methods Under gas chromatography and mass spectrography,the concentration of home-made C₂F₆ and C₃F₈ in steel flask were measured.Home-made C₂F₆ and C₃F₈ from steel flasks were each sealed into 15 patented small packages.The each 15 packages were evenly divided into 3 groups（5 packages/group） and kept in room temperature.Two weeks,3 months and 1 year after sealing,the concentration of the gas in packages were measured under gas chromatography.Results The concentrations of home-made C₂F₆ and C₃F₈ in steel flask were higher than 99.90,no toxic component could be found.Two weeks,3 months and 1 year after sealing,the concentrations of C₂F₆ and C₃F₈ were 93.05 and 96.75,92.91 and 97.29,94.46 and 95.32 respectively.Conclusion The home-made C₂F₆ and C₃F₈ have high concentration and no toxic component.The concentration of C₂F₆ and C₃F₈ remain constant in small packages.This packaging method is convient,reliable and the small package can be used to replace steel flask for storing gas in clinical and investigational field in ophthalmology.更多还原