Comparative study on 2-amino-1,4-naphthoquinone derived ligands as indium (III) selective PVC-based sensors

Vinod K. Gupta; A. J. Hamdan; Manoj K. Pal

doi:10.1016/j.talanta.2010.03.055

Comparative study on 2-amino-1,4-naphthoquinone derived ligands as indium (III) selective PVC-based sensors

Vinod K. Gupta, A. J. Hamdan, Manoj K. Pal

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

17 Scopus citations

Abstract

The three different ligands (Q₂ to Q₄) based on 2-amino-1,4-naphthoquinone (Q₁), have been synthesized and explored as neutral ionophores for preparing polyvinyl chloride-based membrane sensors selective to indium (III). The addition of potassium tetrakis(4-chlorophenyl) borate and various plasticizers, viz., o-NPOE, DBP, DBBP, DOP and CN has been found to substantially improve the performance of the sensors. The best performance was obtained with the sensor no. 16 having membrane of ligand (Q₂) with composition (%, w/w) ionophore Q₂ (3.0%):PVC (30.0%):o-NPOE (63.0%):KTpClPB (4.0%). This sensor exhibits Nernstian response with slope 19.8 mV/decade of activity in the concentration range 2.5 × 10^-7 to 1.0 × 10^-2 M indium (III), performs satisfactorily over wide pH range of (2.5-7.5) with a fast response time (10 s). The sensor was also found to work satisfactorily in partially non-aqueous media up to 20% (v/v) content of acetonitrile, ethanol and methanol. The proposed sensor can be used over a period of 3.5 months without significant drift in potentials. The quantitative application of sensor was also evaluated by comparative analysis of artificially made sea water with AAS.

Original language	English
Pages (from-to)	44-50
Number of pages	7
Journal	Talanta
Volume	82
Issue number	1
DOIs	https://doi.org/10.1016/j.talanta.2010.03.055
State	Published - 30 Jun 2010
Externally published	Yes

Bibliographical note

Funding Information:
The authors acknowledge King Fahd University of Petroleum and Minerals (KFUPM) for supporting this work. One of the authors Manoj Kumar Pal is thankful to ministry of Human Resource Development (MHRD) , New Delhi, India, for financial support.

Keywords

2-Amino-1,4-naphthoquinone
Indium (III)
Ion-selective electrode
PVC

ASJC Scopus subject areas

Analytical Chemistry

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10.1016/j.talanta.2010.03.055

Cite this

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title = "Comparative study on 2-amino-1,4-naphthoquinone derived ligands as indium (III) selective PVC-based sensors",

abstract = "The three different ligands (Q2 to Q4) based on 2-amino-1,4-naphthoquinone (Q1), have been synthesized and explored as neutral ionophores for preparing polyvinyl chloride-based membrane sensors selective to indium (III). The addition of potassium tetrakis(4-chlorophenyl) borate and various plasticizers, viz., o-NPOE, DBP, DBBP, DOP and CN has been found to substantially improve the performance of the sensors. The best performance was obtained with the sensor no. 16 having membrane of ligand (Q2) with composition (\%, w/w) ionophore Q2 (3.0\%):PVC (30.0\%):o-NPOE (63.0\%):KTpClPB (4.0\%). This sensor exhibits Nernstian response with slope 19.8 mV/decade of activity in the concentration range 2.5 × 10-7 to 1.0 × 10-2 M indium (III), performs satisfactorily over wide pH range of (2.5-7.5) with a fast response time (10 s). The sensor was also found to work satisfactorily in partially non-aqueous media up to 20\% (v/v) content of acetonitrile, ethanol and methanol. The proposed sensor can be used over a period of 3.5 months without significant drift in potentials. The quantitative application of sensor was also evaluated by comparative analysis of artificially made sea water with AAS.",

keywords = "2-Amino-1,4-naphthoquinone, Indium (III), Ion-selective electrode, PVC",

author = "Gupta, \{Vinod K.\} and Hamdan, \{A. J.\} and Pal, \{Manoj K.\}",

note = "Funding Information: The authors acknowledge King Fahd University of Petroleum and Minerals (KFUPM) for supporting this work. One of the authors Manoj Kumar Pal is thankful to ministry of Human Resource Development (MHRD) , New Delhi, India, for financial support.",

year = "2010",

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AU - Gupta, Vinod K.

AU - Hamdan, A. J.

AU - Pal, Manoj K.

N1 - Funding Information: The authors acknowledge King Fahd University of Petroleum and Minerals (KFUPM) for supporting this work. One of the authors Manoj Kumar Pal is thankful to ministry of Human Resource Development (MHRD) , New Delhi, India, for financial support.

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N2 - The three different ligands (Q2 to Q4) based on 2-amino-1,4-naphthoquinone (Q1), have been synthesized and explored as neutral ionophores for preparing polyvinyl chloride-based membrane sensors selective to indium (III). The addition of potassium tetrakis(4-chlorophenyl) borate and various plasticizers, viz., o-NPOE, DBP, DBBP, DOP and CN has been found to substantially improve the performance of the sensors. The best performance was obtained with the sensor no. 16 having membrane of ligand (Q2) with composition (%, w/w) ionophore Q2 (3.0%):PVC (30.0%):o-NPOE (63.0%):KTpClPB (4.0%). This sensor exhibits Nernstian response with slope 19.8 mV/decade of activity in the concentration range 2.5 × 10-7 to 1.0 × 10-2 M indium (III), performs satisfactorily over wide pH range of (2.5-7.5) with a fast response time (10 s). The sensor was also found to work satisfactorily in partially non-aqueous media up to 20% (v/v) content of acetonitrile, ethanol and methanol. The proposed sensor can be used over a period of 3.5 months without significant drift in potentials. The quantitative application of sensor was also evaluated by comparative analysis of artificially made sea water with AAS.

AB - The three different ligands (Q2 to Q4) based on 2-amino-1,4-naphthoquinone (Q1), have been synthesized and explored as neutral ionophores for preparing polyvinyl chloride-based membrane sensors selective to indium (III). The addition of potassium tetrakis(4-chlorophenyl) borate and various plasticizers, viz., o-NPOE, DBP, DBBP, DOP and CN has been found to substantially improve the performance of the sensors. The best performance was obtained with the sensor no. 16 having membrane of ligand (Q2) with composition (%, w/w) ionophore Q2 (3.0%):PVC (30.0%):o-NPOE (63.0%):KTpClPB (4.0%). This sensor exhibits Nernstian response with slope 19.8 mV/decade of activity in the concentration range 2.5 × 10-7 to 1.0 × 10-2 M indium (III), performs satisfactorily over wide pH range of (2.5-7.5) with a fast response time (10 s). The sensor was also found to work satisfactorily in partially non-aqueous media up to 20% (v/v) content of acetonitrile, ethanol and methanol. The proposed sensor can be used over a period of 3.5 months without significant drift in potentials. The quantitative application of sensor was also evaluated by comparative analysis of artificially made sea water with AAS.

KW - 2-Amino-1,4-naphthoquinone

KW - Indium (III)

KW - Ion-selective electrode

KW - PVC

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M3 - Article

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IS - 1

ER -

Comparative study on 2-amino-1,4-naphthoquinone derived ligands as indium (III) selective PVC-based sensors

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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