%0 Journal Article %T Determination of 2,4-Dinitrophenol by Solid-Phase Microextraction Coupled to GC/MS
固相微萃取/气相色谱/质谱联用测定水中的2,4-二硝基苯酚 %A Lu Xin %A Zhao Xinjie %A Ye Fen %A Xu Guowang %A
路鑫 %A 赵欣捷 %A 叶芬 %A 许国旺 %J 色谱 %D 1999 %I %X Solid-phase microextraction coupled GC/MS was investigated for the determination of 2,4-dinitrophenol in aqueous sample. Analytes were extracted by a 85 microns polyacrylate coated fiber. The fiber was then transferred into the injector of GC. Analytes were thermally desorbed and detected by GC/MS. The influences of several parameters on SPME procedure have been studied. The optimization condition was obtained: directly sampling in the water sample with the extraction period was 30 min and the desorption time 3 min at 270 degrees C. Acidification by hydrochloric acid (pH 2) and saturated salt were necessary for the best sensitivity. The precision of SPME is better than that of liquid-liquid extraction. This method is a fast, simple, and pre-concentration-free technique, which is suitable for detecting 2,4-dinitrophenol in water sample. %K solid-phase microextraction (SPME ) %K 2 %K 4-dinitrophenol %K optindzation %K GC /MS
固相做萃取(SPME) %K 气相色谱/质谱 %K 最佳化 %K 2,4-二硝基本酚 %U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=6579068328FE643F&jid=4D81E042D77AFEC6881D14759692069C&aid=D7F5F79B7B81B862A4A82CB02BD50025&yid=B914830F5B1D1078&vid=BCA2697F357F2001&iid=0B39A22176CE99FB&sid=6DE26652A1045643&eid=76B5E24D6EC46B4B&journal_id=1000-8713&journal_name=色谱&referenced_num=16&reference_num=0