Determination of trace amount of Cu2+ with a multi-responsive colorimetric and reversible chemosensor

Yong Sheng Mi, Zhong Cao, Ya Ting Chen, Qiu Fen Xie, Ying Ying Xu, Yong Feng Luo, Jianjian Shi, Jian Nan Xiang

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

A multi-responsive sensor 1 was constructed by combining a ferrocene unit and a rhodamine block via a carbohydrazone bond. The sensor showed high selectivity toward Cu2+ over other common metal ions in a wide pH range with excellent reversibility and rapid response. The obvious color change from colorless to pink upon the addition of Cu2+ could make it a suitable 'naked-eye' indicator for Cu2+. The detection limit (LOD) obtained was down to 2.0 nM and the association constant (Ka) was evaluated as 4.65 × 107 M-1. The accuracy for detecting Cu2+ in environmental river water was compared favorably with the traditional atomic absorption spectroscopy method (AAS). Finally, we proposed a reversible ring-opening mechanism (Off-On) of the rhodamine spirolactam induced by Cu2+ binding and a 2:1 stoichiometric structure between 1 and Cu2+.

Original languageEnglish
Pages (from-to)5274-5280
Number of pages7
JournalAnalyst
Volume138
Issue number18
DOIs
StatePublished - Sep 21 2013

Fingerprint

Rhodamines
sensor
Atomic spectroscopy
Sensors
atomic absorption spectroscopy
Absorption spectroscopy
Rivers
Metal ions
river water
Limit of Detection
Spectrum Analysis
Color
Metals
Ions
ion
Water
metal
ferrocene
detection
indicator

ASJC Scopus subject areas

  • Analytical Chemistry
  • Spectroscopy
  • Electrochemistry
  • Biochemistry
  • Environmental Chemistry

Cite this

Mi, Y. S., Cao, Z., Chen, Y. T., Xie, Q. F., Xu, Y. Y., Luo, Y. F., ... Xiang, J. N. (2013). Determination of trace amount of Cu2+ with a multi-responsive colorimetric and reversible chemosensor. Analyst, 138(18), 5274-5280. https://doi.org/10.1039/c3an00741c

Determination of trace amount of Cu2+ with a multi-responsive colorimetric and reversible chemosensor. / Mi, Yong Sheng; Cao, Zhong; Chen, Ya Ting; Xie, Qiu Fen; Xu, Ying Ying; Luo, Yong Feng; Shi, Jianjian; Xiang, Jian Nan.

In: Analyst, Vol. 138, No. 18, 21.09.2013, p. 5274-5280.

Research output: Contribution to journalArticle

Mi, YS, Cao, Z, Chen, YT, Xie, QF, Xu, YY, Luo, YF, Shi, J & Xiang, JN 2013, 'Determination of trace amount of Cu2+ with a multi-responsive colorimetric and reversible chemosensor', Analyst, vol. 138, no. 18, pp. 5274-5280. https://doi.org/10.1039/c3an00741c
Mi, Yong Sheng ; Cao, Zhong ; Chen, Ya Ting ; Xie, Qiu Fen ; Xu, Ying Ying ; Luo, Yong Feng ; Shi, Jianjian ; Xiang, Jian Nan. / Determination of trace amount of Cu2+ with a multi-responsive colorimetric and reversible chemosensor. In: Analyst. 2013 ; Vol. 138, No. 18. pp. 5274-5280.
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