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:张承明[1] 徐若飞 孔维松[1] 陈章玉[1] 杨光宇[1]
机构地区:[1]云南烟草科学研究院烟草化学研究室,昆明650106 [2]曲靖卷烟厂,曲靖市655001
出 处:《理化检验(化学分册)》2007年第5期397-399,共3页Physical Testing and Chemical Analysis(Part B:Chemical Analysis)
摘 要:采用顶空气相色谱法对卷烟包装材料中溶剂残留(乙酸乙酯、乙酸丁酯、甲苯、乙苯等)进行分析,并讨论了各种条件对测定的影响。分析结果表明,该方法对上述4种溶剂残留的检出限范围分别为乙酸乙酯0.4-120mg·L^-1,甲苯0.4-120mg·L^-1,乙酸丁酯1.2-600mg·L^-1,乙苯0.5~150mg·L^-1,测定结果的相对标准偏差为2.5%~3.1%,样品的回收率为90%~95%;方法用于卷烟包装材料实样中溶剂残留的分析。Head-space gas chromatography was applied to the determination of 4 residual organic solvents, i. e. ethyl acetate, butyl acetate, toluene and ethyl benzene, in cigarette packing materials and the effects of various analytical conditions were studied and optimized. Linear relationship were obtained in the ranges of 0. 4- 120 mg · L^-1 (for ethyl acetate and toluene), 1.2 - 600 mg·L^-1 (for butyl acetate) and 0. 5 - 150 mg · L^-1 (for ethyl benzene). Precision and recovery were tested and values found were in the ranges of 2.5%-3. 1% and 90%-95% respectively. The proposed method has been applied to the analysis of carton and aluminum foil samples for the residual organic solvents.
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:3.144.230.177