Journal of Chromatography A volume 1218, issue 52, P9314-9320 2011 DOI: 10.1016/j.chroma.2011.10.076 View full text
Xi-Tian Peng, Xing Zhao, Yu-Qi Feng

Abstract: In this paper, two phenothiazine bonded silica (PTZ-Si) sorbents were prepared and used as sorbents of solid-phase extraction (SPE) for the determination of nitrobenzene compounds in environmental water samples by gas chromatography-mass spectrometry (GC-MS). Different synthesis routes were proposed to obtain high bonded amount of PTZ on the surface of silica gel. PTZ molecule was derived to its amino or acyl chloride derivatives for reacting with isocyanate or amino silane coupling agent, which was further re…

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