摘要
建立了气相色谱测定修正液中11种苯系物的方法。通过对样品前处理方法的考察及色谱条件的优化,确定采用乙酸乙酯作为溶剂对样品进行提取,提取液经离心、过滤后由气相色谱法测定,外标法定量。11种苯系物在1.0～200.0 mg/L质量浓度范围内呈良好线性,相关系数(r2)为0.999 2～0.999 9,检出限(LOD)均为1.0 mg/kg,加标回收率为90%～105%,相对标准偏差(RSD,n=6)均小于6%。该方法简便,快速,结果准确可靠。
A gas chromatographic （GC） method was developed for the determination of 11 benzene and its analogies in correction fluid. The conditions for sample pretreatment and GC were investigated and optimized. The correction fluids were extracted with ethyl acetate. The extracts were centrifugalized and filtrated, and then determined by GC and quantified by the external standard method. The results showed that good linear relationships were found at an wide concentrations range of 1.0 -200. 0 mg/L for all analytes, with correlation coefficients （ r2 ） of 0. 999 2 - 0. 999 9. The limits of detection （LOD） were all 1.0 mg/kg. The spiked recoveries ranged from 90% to 105% , with relative standard deviations（ RSD, n = 6） less than 6%. The results demonstrated that the method was simple, rapid and accurate.
出处
《分析测试学报》
CAS
CSCD
北大核心
2012年第10期1330-1333,共4页
Journal of Instrumental Analysis
关键词
气相色谱法
修正液
苯系物
乙酸乙酯
gas chromatography（GC）
correction fluids
benzene homologues
ethyl acetate
