色谱Issue(4)：441-445,5.DOI:10.3724/SP.J.1123.2014.12023
顶空固相微萃取-气相色谱法测定生活饮用水中痕量1，4-二氧六环
Analysis of 1,4-dioxane in drinking water by headspace solid-phase microextraction-gas chromatography
摘要
Abstract
A method for the detection of trace 1,4⁃dioxane in drinking water using headspace solid⁃phase microextraction ( HS/SPME ) with gas chromatography/flame ionization detector ( FID) was presented. Both the extraction conditions ( SPME fiber, extraction temperature, extraction time, pH and sample volume, et al) and the gas chromatographic conditions were optimized. The results showed that the best response was obtained with 85μm Carboxen⁃PDMS above 3 mL water in a 20⁃mL screw capped vial containing 3 mL sodium hydroxide solution ( 600 g/L) . The best chromatographic separation was obtained on a PTA⁃5 capillary column ( 30 m × 0�53 mm × 3�0 μm ) which was modified with alkali⁃bonding and of large pores and thick film. The linear range for 1,4⁃dioxane was 0�50-50�0μg/L with the correlation coefficient ( r) of 0�999 5. The limit of detection ( S/N>3) was 0�14μg/L. The recoveries for the actual water samples at low, medium and high spiked levels were 95�5%-107%, with the relative standard deviations of 1�1%-5�3% ( n=6) . The developed method is simple, accurate, reproducible and highly sensitive. It is suitable for the routine monitoring of trace amount of 1,4⁃dioxane in the drinking water.关键词
顶空固相微萃取/气相色谱/1,4-二氧六环/生活饮用水Key words
headspace solid-phase microextraction (HS/SPME)/gas chromatography (GC)/1,4-dioxane/drinking water分类
化学化工引用本文复制引用
王玉飞,施家威,王立,金米聪..顶空固相微萃取-气相色谱法测定生活饮用水中痕量1，4-二氧六环[J].色谱,2015,(4):441-445,5.基金项目
浙江省微量有毒化学物健康风险评估技术研究重点实验室建设项目（2013E10017）． （）
