STÜCHELI, P. E.; NIGGEMANN, J.; SCHUBERT, C. J. Comparison of different solid phase extraction sorbents for the qualitative assessment of dissolved organic nitrogen in freshwater samples using FT-ICR-MS: SPE sorbent comparison for DON extraction. Journal of Limnology, [S. l.], v. 77, n. 3, 2018. DOI: 10.4081/jlimnol.2018.1791. Disponível em: https://www.jlimnol.it/jlimnol/article/view/jlimnol.2018.1791. Acesso em: 28 mar. 2024.