BUI, Van Hoi; VU, Cam Tu; PHUNG, Ngoc Phuong Linh; NGUYEN, Thi Thu; DUONG, Thi Quynh Mai; CHU, Dinh Binh. Validation of protein precipitation and solid phase extraction clean-up procedure for simultaneous determination of trimethoprim and sulfamethoxazole in human plasma by HPLC-DAD. JST: Engineering And Technology For Sustainable Development, [S. l.], v. 35, n. 2, p. 18–25, 2025. DOI: 10.51316/jst.181.etsd.2025.35.2.3. Disponível em: https://jst.vn/index.php/etsd/article/view/411. Acesso em: 18 jun. 2025.