Solid phase colorimetric determination of iodine in food grade salt using polymethacrylate matrix

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

A novel colorimetric sensor has been proposed for sensitive and accurate detection of iodine forms using polymethacrylate matrix, which also has the outlook for use with samples without pre-treatment and is suitable to fit in a portable instrument for in situ iodine analysis. This determination method is based on interaction of polymethacrylate matrix with iodine forms followed by measurement of absorbance at 370 nm. The principle of this colorimetric sensor is not ordinary colorimetry, but a new colorimetric strategy that combines solid phase extraction and spectrophotometric determination of a target substance following completion of the color change processes. This method ensures determination of 0.05–80.0 µg·g−1 of iodine with the detection limit of 0.02 µg·g−1. The testing results show that this polymethacrylate matrix can be used for determination of iodine in solutions, food grade salt and iodinated mineral water.

Original languageEnglish
Pages (from-to)15-19
Number of pages5
JournalFood Chemistry
Volume280
DOIs
Publication statusPublished - 15 May 2019

Fingerprint

food grades
iodine
Iodine
Salts
salts
Food
sensors (equipment)
Colorimetry
Mineral Waters
colorimetry
mineral water
Solid Phase Extraction
Sensors
solid phase extraction
absorbance
Limit of Detection
detection limit
pretreatment
Color
polymethacrylic acid

Keywords

  • Colorimetric sensor
  • Food grade salt
  • Iodide
  • Iodine
  • Solid phase spectrophotometry

ASJC Scopus subject areas

  • Analytical Chemistry
  • Food Science

Cite this

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title = "Solid phase colorimetric determination of iodine in food grade salt using polymethacrylate matrix",
abstract = "A novel colorimetric sensor has been proposed for sensitive and accurate detection of iodine forms using polymethacrylate matrix, which also has the outlook for use with samples without pre-treatment and is suitable to fit in a portable instrument for in situ iodine analysis. This determination method is based on interaction of polymethacrylate matrix with iodine forms followed by measurement of absorbance at 370 nm. The principle of this colorimetric sensor is not ordinary colorimetry, but a new colorimetric strategy that combines solid phase extraction and spectrophotometric determination of a target substance following completion of the color change processes. This method ensures determination of 0.05–80.0 µg·g−1 of iodine with the detection limit of 0.02 µg·g−1. The testing results show that this polymethacrylate matrix can be used for determination of iodine in solutions, food grade salt and iodinated mineral water.",
keywords = "Colorimetric sensor, Food grade salt, Iodide, Iodine, Solid phase spectrophotometry",
author = "Gavrilenko, {Nataliya A.} and Fedan, {Dmitrii A.} and Saranchina, {Nadezhda V.} and Gavrilenko, {Mikhail A.}",
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T1 - Solid phase colorimetric determination of iodine in food grade salt using polymethacrylate matrix

AU - Gavrilenko, Nataliya A.

AU - Fedan, Dmitrii A.

AU - Saranchina, Nadezhda V.

AU - Gavrilenko, Mikhail A.

PY - 2019/5/15

Y1 - 2019/5/15

N2 - A novel colorimetric sensor has been proposed for sensitive and accurate detection of iodine forms using polymethacrylate matrix, which also has the outlook for use with samples without pre-treatment and is suitable to fit in a portable instrument for in situ iodine analysis. This determination method is based on interaction of polymethacrylate matrix with iodine forms followed by measurement of absorbance at 370 nm. The principle of this colorimetric sensor is not ordinary colorimetry, but a new colorimetric strategy that combines solid phase extraction and spectrophotometric determination of a target substance following completion of the color change processes. This method ensures determination of 0.05–80.0 µg·g−1 of iodine with the detection limit of 0.02 µg·g−1. The testing results show that this polymethacrylate matrix can be used for determination of iodine in solutions, food grade salt and iodinated mineral water.

AB - A novel colorimetric sensor has been proposed for sensitive and accurate detection of iodine forms using polymethacrylate matrix, which also has the outlook for use with samples without pre-treatment and is suitable to fit in a portable instrument for in situ iodine analysis. This determination method is based on interaction of polymethacrylate matrix with iodine forms followed by measurement of absorbance at 370 nm. The principle of this colorimetric sensor is not ordinary colorimetry, but a new colorimetric strategy that combines solid phase extraction and spectrophotometric determination of a target substance following completion of the color change processes. This method ensures determination of 0.05–80.0 µg·g−1 of iodine with the detection limit of 0.02 µg·g−1. The testing results show that this polymethacrylate matrix can be used for determination of iodine in solutions, food grade salt and iodinated mineral water.

KW - Colorimetric sensor

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KW - Iodide

KW - Iodine

KW - Solid phase spectrophotometry

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