Sha, Ou, Wei-Xing Ma, Ye-Hua Gu, and Mei Sun. “Spectrophotometric Determination of Dissolved Oxygen in Water Sample With the System of I3&Ndash;-Malachite Green-Polyvinyl Alcohol”. Asian Journal of Chemistry 23, no. 8 (May 6, 2011): 3595–3598. Accessed July 23, 2024. https://asianpubs.org/index.php/ajchem/article/view/10703.