10.6084/m9.figshare.c.3698191_D3.v1 A. Naldi A. Naldi P. Fayad P. Fayad M. Prévost M. Prévost S. Sauvé S. Sauvé MOESM2 of Analysis of steroid hormones and their conjugated forms in water and urine by on-line solid-phase extraction coupled to liquid chromatography tandem mass spectrometry Springer Nature 2016 Conjugated steroid hormones Solid phase extraction (SPE) Liquid chromatography tandem mass spectrometry (LC–MS/MS) Wastewater River water Urine Estrogens 2016-05-06 05:00:00 Journal contribution https://springernature.figshare.com/articles/journal_contribution/MOESM2_of_Analysis_of_steroid_hormones_and_their_conjugated_forms_in_water_and_urine_by_on-line_solid-phase_extraction_coupled_to_liquid_chromatography_tandem_mass_spectrometry/4674271 Additional file 2: Figure S1. Method validation for precision (intra-day). C = 200 ng L−1, n = 10 for 1 mL sample volume and C = 50 ng L−1, n = 7 for 5 mL sample volume.