Nonylphenolic compounds in drinking and surface waters downstream of treated textile and pulp and paper effluents: a survey and preliminary assessment of their potential effects on public health and aquatic life.

Eleven drinking water treatment plants, located downstream of textile plants or pulp and paper mills, have been sampled monthly during a year for the analysis of 17 nonylphenol ethoxylates (NP1-17EO) and two nonylphenoxycarboxylic acids (NP1-2EC). At all but one plant, results in the drinking water, for the sum of these 19 substances, range between below detection levels and 6.7 microg/l.

Liquid chromatographic-tandem mass spectrometric determination of nonylphenol polyethoxylates and nonylphenol carboxylic acids in surface water.

This paper presents a new LC-MS-MS method for the determination of the concentration of nonylphenol ethoxylates (NPEOs) and nonylphenol carboxylic acids (NPECs) in surface and drinking water using a reversed-phase column, which is fast and specific by nature. This method allows the simultaneous analysis of the two families of compounds in the same extract. Liquid-solid extraction of 100 ml of sample is performed on graphitized carbon black (GCB) cartridges.