1.
Zou D, Zou Y, Yang Y. Determination of Morphine in Urine by HPLC Using Ion-Pair Extraction. ajc [Internet]. 2012 Dec. 10 [cited 2024 Jul. 22];25(5):2469-73. Available from: https://asianpubs.org/index.php/ajchem/article/view/25_5_26