NING, Jinyan; ZHAO, Jiao; MENG, Lifen; BI, Li. Vortex-Assisted Surfactant-Enhanced Emulsification Microextraction Combined with High Performance Liquid Chromatography-Fluorescence Detector for Determination of Nitrite in Urine. Asian Journal of Chemistry, [S. l.], v. 26, n. 21, p. 7129–7132, 2014. DOI: 10.14233/ajchem.2014.16523. Disponível em: https://asianpubs.org/index.php/ajchem/article/view/26_23_9. Acesso em: 17 jul. 2024.