摘要
建立了固相微萃取（SPME）-气相色谱（GC）法分析环境水样中痕量酞酸酯类化合物（PAEs）的方法。选用65μm PDMS/CVB萃取纤维,在磁力搅拌转速为700 r/min、萃取温度为60℃条件下,对水样中的PAEs萃取富集50 min,然后直接注入GC进样口,在250℃温度下解吸1.5 min后进行分析测定,6种PAEs能得到充分提取和分离。方法的检出限为0.010 8-0.029 3μg/L。对水样进行3个质量浓度水平（0.025、0.125、0.25μg/L）的加标实验,加标回收率为41.79%-132.80%,RSD为6.53%-18.74%（n=7）,用该法测定了某制药厂的实际水样,测得DBP含量为0.018 6μg/L,DEHP、DMP、DEP、DOP、BBP均未检测到。
A simple method based on solid-phase microextraction （SPME） coupled with gaschromatography-flame ionization detection （GC-FID） was developed for the determ ination oftrace amounts of phthalate esters （PAEs） in environment water samples. In this method,The extraction was carried out at 60 ℃ for 50 minutes using 65 m PDMS/CVB fiber and withing a con stant stirring speed of 700 r/min. The fiber was introduced into the GC injector port and the extract was desorbed at 250℃ for 1.5 min. Under theoptimized conditions,6 PAEs can be extracted completely and separated well The limits ofdetection （LOD） were from 0,010 8 to 0.029 3 trg/L. The spiked （0.025,0. 125,0.25 μg/L） recover-ies were in the range of 41.79%- 132.80% and the relative standard deviations （RSD） were between 6.53% and 18.74% （n = 7）. The DBP were detected in water sample using the SPME-GC method.
出处
《中国环境监测》
CAS
CSCD
北大核心
2015年第4期91-94,共4页
Environmental Monitoring in China
基金
国家高技术研究发展计划(863计划
2013AA06A308)
关键词
固相微萃取
气相色谱
酞酸酯类化合物
solid phase microextraetion
gas chromatography
phthalic dieste
