%0 Journal Article
%T Determination of 2,4-Dinitrophenol by Solid-Phase Microextraction Coupled to GC/MS<br>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 <br>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<br>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