Full Terms & Conditions of access and use can be found at https://www.tandfonline.com/action/journalInformation?journalCode=gcec20 Chemical Engineering Communications ISSN: (Print) (Online) Journal homepage: https://www.tandfonline.com/loi/gcec20 Synthesis and characterization of cationic quaternary ammonium geminis (16–s–16) and their role in ninhydrin–[Cu(II)–His] + reaction Dileep Kumar & Malik Abdul Rub To cite this article: Dileep Kumar & Malik Abdul Rub (2020): Synthesis and characterization of cationic quaternary ammonium geminis (16–s–16) and their role in ninhydrin–[Cu(II)–His] + reaction, Chemical Engineering Communications, DOI: 10.1080/00986445.2020.1805437 To link to this article: https://doi.org/10.1080/00986445.2020.1805437 View supplementary material Published online: 14 Aug 2020. Submit your article to this journal Article views: 14 View related articles View Crossmark data