8Giger W, Brunner P H and Schaffner C. 4-nonylphenol in sewage sludge: accumulation of toxic metabolites from nonionic surfactants[J].Science, 1984, 225:623 ~ 625.
9Ahel M, McEvoy J and Giger W. Bioaocumulation of the lipophilic metablites of nonionic surfactants in freshwater organisms [J]. Environ Pollut, 1993, 79:243 ~ 248.
10Günther K, Dürbeck H W, Kleist E, et al. Endocrine-disrupting nonylphenols-ultra-trace analysis and time-dependent trend in mussels from the German Bight [J]. Fresenius J Anal Chem, 2001, 371:782~ 786.