Gh. Afshar Z, Parham H. Determination of Trace Amounts of Benzalkonium Chloride by Liquid-Liquid Extraction-Spectrophotometry Method. ajc [Internet]. 2011 Aug. 2 [cited 2024 Nov. 23];23(10):4464-6. Available from: https://asianpubs.org/index.php/ajchem/article/view/10880