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A headspace solid phase microextrac- tion coupled with gas chromatography mass spec- trometry (HS-SPME/GC-MS) method was estab- lished for analyzing nitrobenzene, benzene and ani- line in environmental water samples simultaneously. Factors affecting extraction efficiency (SPME fiber selection, acidity, temperature, salt addition, extrac- tion time, headspace, etc) were verified. Under opti- mal extraction conditions, the detection limits are 0.50, 0.11 and 1.00 μg/L for nitrobenzene, benzene and aniline, respectively. The results indicate that this method is capable of making sensitive and accuracy analyses on nitrobenzene, benzene and aniline in environmental water samples.
A headspace solid phase microextraction coupled with gas chromatography mass spectrometry (HS-SPME / GC-MS) method was estabished for analyzing nitrobenzene, benzene and ani- line in environmental water samples simultaneously. Factors affecting extraction efficiency (SPME Under opti- mal extraction conditions, the detection limits are 0.50, 0.11 and 1.00 μg / L for nitrobenzene, benzene and aniline, respectively. The results indicating that capable of making sensitive and accuracy analyzes on nitrobenzene, benzene and aniline in environmental water samples.