Determination of Fe 2+  and Co 2+  by a Multiple‐Target Colorimetric Chemosensor with Low Detection Limit in Aqueous Solution | Zendy

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

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Determination of Fe 2+ and Co 2+ by a Multiple‐Target Colorimetric Chemosensor with Low Detection Limit in Aqueous Solution

Author(s) -

Kim Hyunjun,

Seo Yujin,

Youn Yeojin,

Lee Hakyung,

Yang Minuk,

Kim Cheal

Publication year - 2019

Publication title -

chemistryselect

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.437

H-Index - 34

ISSN - 2365-6549

DOI - 10.1002/slct.201803415

Subject(s) - detection limit , chemistry , aqueous solution , methylene blue , metal ions in aqueous solution , ion , methylene , nuclear chemistry , metal , analytical chemistry (journal) , chromatography , medicinal chemistry , organic chemistry , photocatalysis , catalysis

A highly effective colorimetric chemosensor DPKP, N′‐(di(pyridin‐2‐yl)methylene)‐6‐hydroxypicolinohydrazide, was synthesized. DPKP sensed Fe 2+ and Co 2+ with the changes of color from colorless to blue and yellow, respectively, without severe inhibition from other metal ions. Binding interactions of DPKP with Fe 2+ and Co 2+ 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 Fe 2+ (0.60 μM) and for Co 2+ (0.22 μM). In addition, DPKP could be used for quantification of Fe 2+ and Co 2+ in environmental samples.

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