Continuous flow membrane microextraction as a clean method for detecting codeine and papaverine in biological samples using HPLC-UV. - Noori, Nematollah; Asghari, Alireza; Haghgoo Qezelje, Hamidreza; Rajabi, Maryam; Memarian, Fatemeh; Hosseini-Bandegharaei, Ahmad (Canadian Journal of Chemistry, 2024)