Establishment of heterodinuclear replacement complexation and its application to direct determination of iron in natural water with dibromo-o-nitrophenylfluorone

Hong Wen Gao; Teng Zeng; Lu Ting Pan; Ling Chen; Ming Li Li; Yuan Yuan

doi:10.1007/s00604-006-0677-9

Establishment of heterodinuclear replacement complexation and its application to direct determination of iron in natural water with dibromo-o-nitrophenylfluorone

Hong Wen Gao, Teng Zeng, Lu Ting Pan, Ling Chen, Ming Li Li, Yuan Yuan

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

4 Scopus citations

Abstract

The chromophore dibromo-o-nitrophenylfluorone (DBNPF) was used to complex Fe(III) and Cu(II) at pH 5.88. Fe(III) can competitively replace Cu(II) from its dinuclear complex Cu(DBNPF)Cu, and forms the Cu(DBNPF)Fe heterodinuclear complex. The Fe-DBNPF and Cu-DBNPF complexes were also characterized by the spectral correction technique. The heterodinuclear replacement complexation (HRC) is proposed and first used for the quantitative detection of iron in trace level with high sensitivity and good selectivity by the light-absorption ratio variation approach. The limit of detection of Fe is 1.0 μg L^-1. The method has been successfully applied to the direct determination of Fe(II, III) dissolved and bound to suspended substances in natural water.

Original language	English (US)
Pages (from-to)	335-344
Number of pages	10
Journal	Microchimica Acta
Volume	158
Issue number	3-4
DOIs	https://doi.org/10.1007/s00604-006-0677-9
State	Published - May 1 2007
Externally published	Yes

Keywords

Determination of Fe
Dibromo-o-nitrophenylfluorone
Heterodinuclear replacement complexation
Light-absorption ratio variation approach

ASJC Scopus subject areas

Analytical Chemistry

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Establishment of heterodinuclear replacement complexation and its application to direct determination of iron in natural water with dibromo-o-nitrophenylfluorone. / Gao, Hong Wen; Zeng, Teng; Pan, Lu Ting; Chen, Ling; Li, Ming Li; Yuan, Yuan.

In: Microchimica Acta, Vol. 158, No. 3-4, 01.05.2007, p. 335-344.

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

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title = "Establishment of heterodinuclear replacement complexation and its application to direct determination of iron in natural water with dibromo-o-nitrophenylfluorone",

abstract = "The chromophore dibromo-o-nitrophenylfluorone (DBNPF) was used to complex Fe(III) and Cu(II) at pH 5.88. Fe(III) can competitively replace Cu(II) from its dinuclear complex Cu(DBNPF)Cu, and forms the Cu(DBNPF)Fe heterodinuclear complex. The Fe-DBNPF and Cu-DBNPF complexes were also characterized by the spectral correction technique. The heterodinuclear replacement complexation (HRC) is proposed and first used for the quantitative detection of iron in trace level with high sensitivity and good selectivity by the light-absorption ratio variation approach. The limit of detection of Fe is 1.0 μg L-1. The method has been successfully applied to the direct determination of Fe(II, III) dissolved and bound to suspended substances in natural water.",

keywords = "Determination of Fe, Dibromo-o-nitrophenylfluorone, Heterodinuclear replacement complexation, Light-absorption ratio variation approach",

author = "Gao, {Hong Wen} and Teng Zeng and Pan, {Lu Ting} and Ling Chen and Li, {Ming Li} and Yuan Yuan",

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T1 - Establishment of heterodinuclear replacement complexation and its application to direct determination of iron in natural water with dibromo-o-nitrophenylfluorone

AU - Gao, Hong Wen

AU - Zeng, Teng

AU - Pan, Lu Ting

AU - Chen, Ling

AU - Li, Ming Li

AU - Yuan, Yuan

PY - 2007/5/1

Y1 - 2007/5/1

N2 - The chromophore dibromo-o-nitrophenylfluorone (DBNPF) was used to complex Fe(III) and Cu(II) at pH 5.88. Fe(III) can competitively replace Cu(II) from its dinuclear complex Cu(DBNPF)Cu, and forms the Cu(DBNPF)Fe heterodinuclear complex. The Fe-DBNPF and Cu-DBNPF complexes were also characterized by the spectral correction technique. The heterodinuclear replacement complexation (HRC) is proposed and first used for the quantitative detection of iron in trace level with high sensitivity and good selectivity by the light-absorption ratio variation approach. The limit of detection of Fe is 1.0 μg L-1. The method has been successfully applied to the direct determination of Fe(II, III) dissolved and bound to suspended substances in natural water.

AB - The chromophore dibromo-o-nitrophenylfluorone (DBNPF) was used to complex Fe(III) and Cu(II) at pH 5.88. Fe(III) can competitively replace Cu(II) from its dinuclear complex Cu(DBNPF)Cu, and forms the Cu(DBNPF)Fe heterodinuclear complex. The Fe-DBNPF and Cu-DBNPF complexes were also characterized by the spectral correction technique. The heterodinuclear replacement complexation (HRC) is proposed and first used for the quantitative detection of iron in trace level with high sensitivity and good selectivity by the light-absorption ratio variation approach. The limit of detection of Fe is 1.0 μg L-1. The method has been successfully applied to the direct determination of Fe(II, III) dissolved and bound to suspended substances in natural water.

KW - Determination of Fe

KW - Dibromo-o-nitrophenylfluorone

KW - Heterodinuclear replacement complexation

KW - Light-absorption ratio variation approach

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IS - 3-4

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Establishment of heterodinuclear replacement complexation and its application to direct determination of iron in natural water with dibromo-o-nitrophenylfluorone

Abstract

Keywords

ASJC Scopus subject areas

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