TY - JOUR
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
N1 - Publisher Copyright:
© 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
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 - http://www.scopus.com/inward/record.url?scp=85060845648&partnerID=8YFLogxK
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 -