检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:孙勇[1] 张皙[1] 许迅[1] 舒敬值[2] 张肇其[2]
机构地区:[1]上海市第一人民医院眼科,上海市眼科研究所200080 [2]中科院上海有机化学研究所,上海市200032
出 处:《眼科新进展》2006年第11期839-840,共2页Recent Advances in Ophthalmology
基 金:上海市卫生局青年课题基金资助(编号:964Y11)
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。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 concentratton of home-made C2F6 and C3F8 in steel flask were measured. Homemade 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 usecl to replace steel flask for storing gas in clinical and investigational field in ophthalmology.
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.32