Fully automated online solid phase extraction coupled directly to liquid chromatography-tandem mass spectrometry. Quantification of sulfonamide antibiotics, neutral and acidic pesticides at low concentrations in surface waters

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Stoob, K., Singer, H. P., Goetz, C. W., Ruff, M., & Mueller, S. R. (2005). Fully automated online solid phase extraction coupled directly to liquid chromatography-tandem mass spectrometry. Quantification of sulfonamide antibiotics, neutral and acidic pesticides at low concentrations in surface waters. Journal of Chromatography A, 1097, 138-147. https://doi.org/10.1016/j.chroma.2005.08.030