Fan1, Binglin, Yingling Wang2, Jie Yang2, Tianjun Ni2, and Quanmin Li1. “Spectrophotometric Determination of Tiopronin in Pharmaceutical Samples by Phosphorus Molybdenum Blue”. Asian Journal of Chemistry 26, no. 2 (January 16, 2014): 331–334. Accessed November 24, 2024. https://asianpubs.org/index.php/ajchem/article/view/26_3_5.