A simple method for colorimetric and naked-eye detection of mercury in fish products

Abstract

A new colorimetric optode has been developed for preconcentration and visual determination of mercury ions in fish products. This optode is based on the color reaction of copper diethyldithiocarbamate with Hg²⁺ in the body of polymethylmethacrylate matrix. The optode exhibited sensitivity through the change of color from brown to colorless, which could be easily detected by naked-eye or spectrophotometric method. The influence of acidity, contact time and interference of foreign metal ions has been studied. The optode revealed good linearity in the range of 20-360 μg·L^-1, with a limit of detection of 8 μg·L^-1 Hg²⁺ at pH 5.2 and response time of 10 min.

Original language	English
Pages (from-to)	219-226
Number of pages	8
Journal	Materials Science Forum
Volume	970
DOIs	https://doi.org/10.4028/www.scientific.net/MSF.970.219
Publication status	Published - 2019

Keywords

Mercury
Minced sea fish
Polymethacrylate matrix
Sea fish
Solid phase spectrophotometry

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.4028/www.scientific.net/MSF.970.219

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title = "A simple method for colorimetric and naked-eye detection of mercury in fish products",

abstract = "A new colorimetric optode has been developed for preconcentration and visual determination of mercury ions in fish products. This optode is based on the color reaction of copper diethyldithiocarbamate with Hg2+ in the body of polymethylmethacrylate matrix. The optode exhibited sensitivity through the change of color from brown to colorless, which could be easily detected by naked-eye or spectrophotometric method. The influence of acidity, contact time and interference of foreign metal ions has been studied. The optode revealed good linearity in the range of 20-360 μg·L-1, with a limit of detection of 8 μg·L-1 Hg2+ at pH 5.2 and response time of 10 min.",

keywords = "Mercury, Minced sea fish, Polymethacrylate matrix, Sea fish, Solid phase spectrophotometry",

author = "Saranchina, {Nadezhda V.} and Dudkina, {Anna A.} and Gavrilenko, {Maria M.} and Gavrilenko, {Nataliya A.}",

year = "2019",

doi = "10.4028/www.scientific.net/MSF.970.219",

language = "English",

volume = "970",

pages = "219--226",

journal = "Materials Science Forum",

issn = "0255-5476",

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T1 - A simple method for colorimetric and naked-eye detection of mercury in fish products

AU - Saranchina, Nadezhda V.

AU - Dudkina, Anna A.

AU - Gavrilenko, Maria M.

AU - Gavrilenko, Nataliya A.

PY - 2019

Y1 - 2019

N2 - A new colorimetric optode has been developed for preconcentration and visual determination of mercury ions in fish products. This optode is based on the color reaction of copper diethyldithiocarbamate with Hg2+ in the body of polymethylmethacrylate matrix. The optode exhibited sensitivity through the change of color from brown to colorless, which could be easily detected by naked-eye or spectrophotometric method. The influence of acidity, contact time and interference of foreign metal ions has been studied. The optode revealed good linearity in the range of 20-360 μg·L-1, with a limit of detection of 8 μg·L-1 Hg2+ at pH 5.2 and response time of 10 min.

AB - A new colorimetric optode has been developed for preconcentration and visual determination of mercury ions in fish products. This optode is based on the color reaction of copper diethyldithiocarbamate with Hg2+ in the body of polymethylmethacrylate matrix. The optode exhibited sensitivity through the change of color from brown to colorless, which could be easily detected by naked-eye or spectrophotometric method. The influence of acidity, contact time and interference of foreign metal ions has been studied. The optode revealed good linearity in the range of 20-360 μg·L-1, with a limit of detection of 8 μg·L-1 Hg2+ at pH 5.2 and response time of 10 min.

KW - Mercury

KW - Minced sea fish

KW - Polymethacrylate matrix

KW - Sea fish

KW - Solid phase spectrophotometry

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