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研究了水中痕量2，4-二硝基苯酚的固相微萃取（SPME）方法，得到了2，4-二硝基苯酚的SPME最佳萃取条件：水溶液调pH2，并用NaCl他和，在室温下直接萃取30min，气相色谱／质谱分析时，纤维探针在270℃下脱附3min。所建立的方法适于快速、方便地测定水中2，4-二硝基苯酚，不需浓缩和预处理。
The SPME method for the determination of trace 2,4-dinitrophenol in water was studied. The optimal extraction conditions for 2,4-dinitrophenol were obtained. The optimal extraction conditions for 2,4-dinitrophenol were as follows: the aqueous solution was adjusted to pH2, Direct extraction 30min at room temperature, gas chromatography / mass spectrometry, fiber probe at 270 ℃ desorption 3min. The established method is suitable for rapid and convenient determination of 2,4-dinitrophenol in water without concentration and pretreatment.