Comparative study of colorimetric sensors based on newly synthesized Schiff bases

Vinod Kumar Gupta; A. K. Singh; M. R. Ganjali; P. Norouzi; F. Faridbod; Naveen Mergu

doi:10.1016/j.snb.2013.03.062

Comparative study of colorimetric sensors based on newly synthesized Schiff bases

Vinod Kumar Gupta^*
, A. K. Singh
, M. R. Ganjali
, P. Norouzi
, F. Faridbod
, Naveen Mergu

^*Corresponding author for this work

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

127 Scopus citations

Abstract

New sensitive cation receptors 2a and 2b containing oligoether linked Schiff bases were prepared and their ability to calorimetrically sense transition metal ions was investigated. Addition of metal ions to a methanol solution of 2a, 2b can result in an obvious colour change (from colourless to yellowish-brown for Cu²⁺ and colourless to yellow for Co ²⁺, Ni²⁺, Cd²⁺, Zn²⁺) and UV-vis absorption spectral change in a short time. The colour change and binding ability of receptors with Cu²⁺ ion are more compare to other ions, the detection limit is allowable to 1.0 × 10^-5 and 1.0 × 10^-6 M level of Cu²⁺, 1.0 × 10^-4 and 1.0 × 10^-5 M level of Co²⁺, Ni²⁺, Cd ²⁺, Zn²⁺ according to visual colour change and UV-vis spectral change, respectively. This indicated that these two receptors are highly selective for those metal ions over other ions like Ca²⁺, Mg²⁺, Mn²⁺, Hg²⁺, Cr³⁺, Fe ²⁺, Pb²⁺.

Original language	English
Pages (from-to)	642-651
Number of pages	10
Journal	Sensors and Actuators, B: Chemical
Volume	182
DOIs	https://doi.org/10.1016/j.snb.2013.03.062
State	Published - 2013
Externally published	Yes

Bibliographical note

Funding Information:
This work was supported by the Ministry of Human Resource Development (MHRD) , New Delhi, India. Authors are thankful to Department of Science and Technology (DST), Govt. of India, for providing Mass Spectrometer under FIST programme.

Keywords

Cation recognition
Colorimetric sensor
Schiff base receptor
Transition metal

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Instrumentation
Condensed Matter Physics
Surfaces, Coatings and Films
Metals and Alloys
Electrical and Electronic Engineering
Materials Chemistry

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10.1016/j.snb.2013.03.062

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title = "Comparative study of colorimetric sensors based on newly synthesized Schiff bases",

abstract = "New sensitive cation receptors 2a and 2b containing oligoether linked Schiff bases were prepared and their ability to calorimetrically sense transition metal ions was investigated. Addition of metal ions to a methanol solution of 2a, 2b can result in an obvious colour change (from colourless to yellowish-brown for Cu2+ and colourless to yellow for Co 2+, Ni2+, Cd2+, Zn2+) and UV-vis absorption spectral change in a short time. The colour change and binding ability of receptors with Cu2+ ion are more compare to other ions, the detection limit is allowable to 1.0 × 10-5 and 1.0 × 10-6 M level of Cu2+, 1.0 × 10-4 and 1.0 × 10-5 M level of Co2+, Ni2+, Cd 2+, Zn2+ according to visual colour change and UV-vis spectral change, respectively. This indicated that these two receptors are highly selective for those metal ions over other ions like Ca2+, Mg2+, Mn2+, Hg2+, Cr3+, Fe 2+, Pb2+.",

keywords = "Cation recognition, Colorimetric sensor, Schiff base receptor, Transition metal",

author = "Gupta, \{Vinod Kumar\} and Singh, \{A. K.\} and Ganjali, \{M. R.\} and P. Norouzi and F. Faridbod and Naveen Mergu",

note = "Funding Information: This work was supported by the Ministry of Human Resource Development (MHRD) , New Delhi, India. Authors are thankful to Department of Science and Technology (DST), Govt. of India, for providing Mass Spectrometer under FIST programme. ",

year = "2013",

doi = "10.1016/j.snb.2013.03.062",

language = "English",

volume = "182",

pages = "642--651",

journal = "Sensors and Actuators, B: Chemical",

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T1 - Comparative study of colorimetric sensors based on newly synthesized Schiff bases

AU - Gupta, Vinod Kumar

AU - Singh, A. K.

AU - Ganjali, M. R.

AU - Norouzi, P.

AU - Faridbod, F.

AU - Mergu, Naveen

N1 - Funding Information: This work was supported by the Ministry of Human Resource Development (MHRD) , New Delhi, India. Authors are thankful to Department of Science and Technology (DST), Govt. of India, for providing Mass Spectrometer under FIST programme.

PY - 2013

Y1 - 2013

N2 - New sensitive cation receptors 2a and 2b containing oligoether linked Schiff bases were prepared and their ability to calorimetrically sense transition metal ions was investigated. Addition of metal ions to a methanol solution of 2a, 2b can result in an obvious colour change (from colourless to yellowish-brown for Cu2+ and colourless to yellow for Co 2+, Ni2+, Cd2+, Zn2+) and UV-vis absorption spectral change in a short time. The colour change and binding ability of receptors with Cu2+ ion are more compare to other ions, the detection limit is allowable to 1.0 × 10-5 and 1.0 × 10-6 M level of Cu2+, 1.0 × 10-4 and 1.0 × 10-5 M level of Co2+, Ni2+, Cd 2+, Zn2+ according to visual colour change and UV-vis spectral change, respectively. This indicated that these two receptors are highly selective for those metal ions over other ions like Ca2+, Mg2+, Mn2+, Hg2+, Cr3+, Fe 2+, Pb2+.

AB - New sensitive cation receptors 2a and 2b containing oligoether linked Schiff bases were prepared and their ability to calorimetrically sense transition metal ions was investigated. Addition of metal ions to a methanol solution of 2a, 2b can result in an obvious colour change (from colourless to yellowish-brown for Cu2+ and colourless to yellow for Co 2+, Ni2+, Cd2+, Zn2+) and UV-vis absorption spectral change in a short time. The colour change and binding ability of receptors with Cu2+ ion are more compare to other ions, the detection limit is allowable to 1.0 × 10-5 and 1.0 × 10-6 M level of Cu2+, 1.0 × 10-4 and 1.0 × 10-5 M level of Co2+, Ni2+, Cd 2+, Zn2+ according to visual colour change and UV-vis spectral change, respectively. This indicated that these two receptors are highly selective for those metal ions over other ions like Ca2+, Mg2+, Mn2+, Hg2+, Cr3+, Fe 2+, Pb2+.

KW - Cation recognition

KW - Colorimetric sensor

KW - Schiff base receptor

KW - Transition metal

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DO - 10.1016/j.snb.2013.03.062

M3 - Article

AN - SCOPUS:84876235619

SN - 0925-4005

VL - 182

SP - 642

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JO - Sensors and Actuators, B: Chemical

JF - Sensors and Actuators, B: Chemical

ER -

Comparative study of colorimetric sensors based on newly synthesized Schiff bases

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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