8Pskari K, Brock JW, Caroline M, et al. Detect the blood concentration of benzene by headspace gas chromatography. J Chromatogr, 1989,491:309.
9Gill R,Homnaa S,David L,et al. Detect the blood concentration of methylbenzene by headspace gas chromatography. J Anal Toxicol, 1988,12: 141.
10Waidyanatha S, Rothman N, FustinoniS, et al. Urinary benzene as a biomarker of exposeure among occupationally exposed and unexposed subjects. Carcinogenesis ,2001,22:279 - 286.
