TY - JOUR T1 - Determination of 4-Nonylphenol in Surface Waters of the Guandu River Basin by High Performance Liquid Chromatography with Ultraviolet Detection JO - Journal of the Brazilian Chemical Society A1 - Araujo, Frederico G. de A1 - Bauerfeldt, Glauco F. A1 - Cid, Yara P. SN - 0103-5053 UL - 10.21577/0103-5053.20180079 VL - 29 Y1 - 2018 PB - Brasil ER -