Gold and silver nanoparticles and indicator dyes as active agents in colorimetric spot and strip tests for mercury(II) ions: a review

• Published in: Mikrochimica acta (1966) Vol. 184; no. 1; pp. 45 - 58
• Main Authors: Zarlaida, Fitri, Adlim, Muhammad
• Format: Journal Article
• Language: English
• Published: Vienna Springer Vienna 01.01.2017; Springer; Springer Nature B.V
• Subjects: Analytical Chemistry; Characterization and Evaluation of Materials; Chemical properties; Chemistry; Chemistry and Materials Science; Colorimetry; Dyes; Gold; Mercury (metal); Mercury compounds; Microengineering; Nanochemistry; Nanoparticles; Nanotechnology; Povidone; Review Article; Silver; Triazoles; Protecting agent; Polymer stabilizer; Gold nanoparticles; Detection limit; DNA; Immobilization; Visual test; Solid support; Spectrophotometry; Silver nanoparticles
• ISSN: 0026-3672; 1436-5073
• DOI: 10.1007/s00604-016-1967-4

This review with 111 references covers recent progress made in the field of strip tests and spot tests for quantitative determination of mercury(II) ions. Following an introduction into the subject and the fundamentals of colorimetric determination, we first cover methods for synthesis and characterization of gold and silver nanoparticles (NPs) and give representative examples. The next sections cover (a) methods for dye-based detection of Hg(II) ions (categorized into azo, acridine, anthraquinone, di−/triarylmethane, nitro/nitroso, cyanine, triazole, oxazine, thiazine, dioxazine and xanthene dyes), and (b) techniques for immobilization of active agents (NPs and indicators) on the solid support. A conclusion section discusses current challenges and trends in future research. Graphical abstract This review summarizes recent progress made in the field of strip tests and spot tests for quantitative determination of mercury(II) ions by using gold and silver nanoparticles (NPs).