摘要
建立了空气清新剂中苯，甲苯，乙苯，对二甲苯，间二甲苯，邻二甲苯，1,4-二氯苯7种苯类化合物的气相色谱-质谱测定方法。样晶用N,N-二甲基甲酰胺稀释，用硫酸纳脱水。试液用滤膜过滤后用气相色谱。质谱仪测试。方法的检出限（S／N=3）均为2．5mg／kg。仪器线性范围在100-2000μg/L之间，相关系数r^2在0．9994到1．0000之间。在三个浓度的加标回收率在90．4%-119．4％之间。相对标准偏差在1．9％-6．6％之间。方法的特异性好，快速，灵敏度高，有较好的准确性和精密度，可作为空气清新剂中七种苯类化合物的检测方法。对空气清新剂质量安全监测有重要意义。
A method has been established for determination of seven benzenes in air freshener. Sample was diluted by N,N-dimethylformamide and dehydrated by anhydrous sodium sulfate. The solution wasethyl derivative products were extracted by n-hexane then tested by gas chromatography-mass spectroscopy. The detection limits （S/N=3） of the compounds were 2.5 mg/kg, the linear ranges were between 100 μg/L and 2000 lag/L, with the correlation coefficients r2 from 0.9994 to 1.0000. The recoveries at three concentration levels were from 90.4 % to 119.41% with the relative standard deviations from 1.9 % to 6.6 %. It＇s a specific, fast, sensitive and accuracy method for determination of the seven benzenes in air freshener, tt will make great sense in safety quality inspection for air freshener.
作者
杨云
刘德云
张沛林
陈意光
谭建华
贾芳
Yang Yun Liy Deyun Zhang Peilin Chen Yiguang Tan Jiardaua Jia Fang(Guangzhou Quality Supervision and Testing Institute, Guangzhou 511447, China)
出处
《广东化工》
CAS
2016年第21期164-166,共3页
Guangdong Chemical Industry
作者简介
杨云（1986-）．女，广东人，本科，主要研究方向为日用化工产品。
