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
机构地区:[1]浙江省检验检疫科学技术研究院,杭州311200
出 处:《理化检验(化学分册)》2015年第8期1093-1095,共3页Physical Testing and Chemical Analysis(Part B:Chemical Analysis)
基 金:国家质量监督检验检疫总局课题(2010IK197)
摘 要:提出了碳骨架-气相色谱法测定电子电气材料中六溴环十二烷的方法。样品经二氯甲烷-丙酮(1+2)混合液超声提取30min后用正己烷进行溶剂置换,在催化反应衬管中进行钯催化氢化反应。用HP-5MS毛细管色谱柱分离,氢火焰离子化检测器检测。六溴环十二烷的质量浓度在1.25~80.0mg·L1范围内与其峰面积呈线性关系,方法的测定下限(10S/N)为10mg·kg-1。加标回收率在78.8%~106%之间,测定值的相对标准偏差(n=8)为2.1%~5.6%之间。A method of GC for the determination of hexabromocyclododecane in electronic and electrical materials based on carbon skeleton was proposed. The sample was ultrasonically extracted with the mixture of dichloromethane-acetone (1 + 2) for 30 min, and then the solvent was displaced with n-hexane. Catalytic hydrogenation reaction with palladium was conducted on the catalytic liners. The analyte was separated on HP-5MS capillary column and detected by FID. Linear relationship between values of peak area and mass concentration of hexabromocyclododecane was obtained in the range of 1.25--80. 0 mg· L-1, with detection limit (10S/N) of 10 mg· kg-1. Values of recovery found by standard addition method were in the range of 78. 8%- 106%, and values of RSD's (n=8) in the range of 2. 1%-5. 6%.
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:216.73.216.117