A Complementary Metal‐Displacement Solid‐Phase Extraction Strategy for the Sensitive and Selective Colorimetric Detection of Hg2+. Issue 17 (19th June 2017)

• Record Type: Journal Article
• Authors: Pathak, Uma; Mathur, Sweta; Pandey, Lokesh Kumar
• Is Part Of: ChemistrySelect. Volume 2:Issue 17(2017)
• Page Start: 4951
• Page End: 4955
• Publication Date: 2017-06-19
• Subjects: Analytical methods -- Colorimetric metal displacement -- Hg2+ detection -- Ni2+-3-hydroxythioflavone complex -- Trace analysis; Chemistry -- Periodicals; 540.5
• DOI: 10.1002/slct.201700790
• Languages: English
• ISSNs: 2365-6549

Abstract

Abstract: A metal displacement strategy complemented with solid phase extraction has been utilised for selective and sensitive detection of Hg 2+ in pure aqueous medium. Rationally designed Ni 2+ ‐3‐hydroxythioflavone complex as Hg 2+ chromogenic sensing probe was synthesized and immobilized on silica. Visual detection of Hg 2+ at 2 ppb was achieved very conveniently by simple treatment of the Ni 2+ ‐3‐hydroxythioflavone decorated silica with contaminated water without any work up. Visual detection, simple procedure, ease of preparation, stability, selectivity and sensitivity renders this method applicable for detection of Hg 2+ in field condition. Abstract : A complementary metal displacement‐solid phase extraction strategy was developed for sensitive and selective colorimetric detection of Hg 2+ in pure aqueous medium. Rationally designed Ni 2+ ‐3‐hydroxythioflavone complex as a chromogenic sensing probe was immobilised on silica to achieve a very convenient and simple optical detection of Hg 2+ .