富勒烯硅油的制备及用做固相微萃取涂层

Preparation of silyl fullerene and its use as SPME coating

合成了富勒烯硅油 ,并首先将其用做固相微萃取 (SPME)涂层 ,利用顶空固相微萃取与气相色谱联用技术 (HS-SPME-GC)分析了水相中 5种邻苯二甲酸酯 ,对实验条件诸如离子强度、吸附时间和热解吸时间进行了研究 ;与商用PDMS萃取头比较 ,结果显示该萃取头对高沸点半挥发性的邻苯二甲酸酯的萃取选择性优于 PDMS。该方法的线性范围在 0 .0 0 1～ 1 0 0 0μg/L ,检出限在 8.4× 1 0 -4 ～ 2 3 .8μg/L,相对标准偏差均在 1 5

In this paper,silyl fullerene was prepared and used as a new fiber for solid phase microextraction(SPME) coating.The fiber coated with silyl fullerene was used to extract 5 phthalic diesters by HS-SPME-GC.The operating conditions of SPME such as ionic strength of solution,adsorption time and desorption time have been studied.It was compared with commercial polymer coating PDMS fiber through headspace SPME combined with gas chromatography.The results indicated that PSO-C 60 is better than PDMS in extracting high boiling point and semi-volatile phthalic diesters.The linear concentration range is from 0.001μg/L to 1000μg/L,the detection limits are in the range of 8.4×10 -4 ~23.8μg/L,and relative standard deviations are below 15% for these phthalic diesters.