Determination of Fe2+ and Co2+ by a Multiple-Target Colorimetric Chemosensor with Low Detection Limit in Aqueous Solution

Hyunjun Kim; Yujin Seo; Yeojin Youn; Hakyung Lee; Minuk Yang; Cheal Kim

doi:10.1002/slct.201803415

Determination of Fe²⁺ and Co²⁺ by a Multiple-Target Colorimetric Chemosensor with Low Detection Limit in Aqueous Solution

Hyunjun Kim
, Yujin Seo
, Yeojin Youn
, Hakyung Lee
, Minuk Yang
, Cheal Kim

Dept. of Fine Chemistry

Seoul National University of Science and Technology (SNUST)

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

A highly effective colorimetric chemosensor DPKP, N′-(di(pyridin-2-yl)methylene)-6-hydroxypicolinohydrazide, was synthesized. DPKP sensed Fe²⁺ and Co²⁺ with the changes of color from colorless to blue and yellow, respectively, without severe inhibition from other metal ions. Binding interactions of DPKP with Fe²⁺ and Co²⁺ were analyzed to be 1:1 and 2:1 with Job plot and ESI-MS analyses, respectively. In particular, DPKP has low detection limits for Fe²⁺ (0.60 μM) and for Co²⁺ (0.22 μM). In addition, DPKP could be used for quantification of Fe²⁺ and Co²⁺ in environmental samples.

Original language	English
Pages (from-to)	1199-1204
Number of pages	6
Journal	ChemistrySelect
Volume	4
Issue number	4
DOIs	https://doi.org/10.1002/slct.201803415
State	Published - 31 Jan 2019

Keywords

cobalt, colorimetric chemosensor, iron, multiple analytes

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10.1002/slct.201803415

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title = "Determination of Fe2+ and Co2+ by a Multiple-Target Colorimetric Chemosensor with Low Detection Limit in Aqueous Solution",

abstract = "A highly effective colorimetric chemosensor DPKP, N′-(di(pyridin-2-yl)methylene)-6-hydroxypicolinohydrazide, was synthesized. DPKP sensed Fe2+ and Co2+ with the changes of color from colorless to blue and yellow, respectively, without severe inhibition from other metal ions. Binding interactions of DPKP with Fe2+ and Co2+ were analyzed to be 1:1 and 2:1 with Job plot and ESI-MS analyses, respectively. In particular, DPKP has low detection limits for Fe2+ (0.60 μM) and for Co2+ (0.22 μM). In addition, DPKP could be used for quantification of Fe2+ and Co2+ in environmental samples.",

keywords = "cobalt, colorimetric chemosensor, iron, multiple analytes",

author = "Hyunjun Kim and Yujin Seo and Yeojin Youn and Hakyung Lee and Minuk Yang and Cheal Kim",

note = "Publisher Copyright: {\textcopyright} 2019 Wiley-VCH Verlag GmbH \& Co. KGaA, Weinheim",

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doi = "10.1002/slct.201803415",

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T1 - Determination of Fe2+ and Co2+ by a Multiple-Target Colorimetric Chemosensor with Low Detection Limit in Aqueous Solution

AU - Kim, Hyunjun

AU - Seo, Yujin

AU - Youn, Yeojin

AU - Lee, Hakyung

AU - Yang, Minuk

AU - Kim, Cheal

PY - 2019/1/31

Y1 - 2019/1/31

N2 - A highly effective colorimetric chemosensor DPKP, N′-(di(pyridin-2-yl)methylene)-6-hydroxypicolinohydrazide, was synthesized. DPKP sensed Fe2+ and Co2+ with the changes of color from colorless to blue and yellow, respectively, without severe inhibition from other metal ions. Binding interactions of DPKP with Fe2+ and Co2+ were analyzed to be 1:1 and 2:1 with Job plot and ESI-MS analyses, respectively. In particular, DPKP has low detection limits for Fe2+ (0.60 μM) and for Co2+ (0.22 μM). In addition, DPKP could be used for quantification of Fe2+ and Co2+ in environmental samples.

AB - A highly effective colorimetric chemosensor DPKP, N′-(di(pyridin-2-yl)methylene)-6-hydroxypicolinohydrazide, was synthesized. DPKP sensed Fe2+ and Co2+ with the changes of color from colorless to blue and yellow, respectively, without severe inhibition from other metal ions. Binding interactions of DPKP with Fe2+ and Co2+ were analyzed to be 1:1 and 2:1 with Job plot and ESI-MS analyses, respectively. In particular, DPKP has low detection limits for Fe2+ (0.60 μM) and for Co2+ (0.22 μM). In addition, DPKP could be used for quantification of Fe2+ and Co2+ in environmental samples.

KW - cobalt, colorimetric chemosensor, iron, multiple analytes

UR - https://www.scopus.com/pages/publications/85060845648

U2 - 10.1002/slct.201803415

DO - 10.1002/slct.201803415

M3 - Article

AN - SCOPUS:85060845648

SN - 2365-6549

VL - 4

SP - 1199

EP - 1204

JO - ChemistrySelect

JF - ChemistrySelect

IS - 4

ER -

Determination of Fe²⁺ and Co²⁺ by a Multiple-Target Colorimetric Chemosensor with Low Detection Limit in Aqueous Solution

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