Continuous Flow Analysis Combined with a Light-Absorption Ratio Variation Approach for Determination of Copper at ng/ml Level in Natural Water

Gao, Hongwen; Wang, Chunlei; Jia, Jiang-Yan; Zhang, Yalei

doi:10.2116/analsci.23.655

Cited by 8 publications

(8 citation statements)

References 27 publications

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“…8B indicates, K of ACDB binds to Cu 2+ increased with the increasing of Cu 2+ concentration. When the Cu 2+ concentration reached to 0.0200 mM, almost all ACDB binds to Cu 2+ ion and there was little free ACDB in the solutions [25]. From Fig.…”

Section: Interaction Of Acdb and Cu 2+mentioning

confidence: 85%

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The effects of copper ions on the catalytic degradation of azo dye acid chrome dark blue

Fan

Liu

Huang

et al. 2010

JICS

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The effect of Cu 2+ on the catalytic degradation of Acid chrome dark blue (ACDB) in UV-TiO 2 process and Fenton process was studied. In these two processes, Cu 2+ markedly inhibited the degradation of ACDB. These inhibition effects had an obvious relationship with the concentration of Cu 2+ . The experimental results indicated that in pH 5.0 buffer solution, ACDB reacted with Cu 2+ with the formation of new complex Cu(ACDB) 2 . This interaction was favorable to protect some groups in ACDB from the oxidation of reactive oxygen species generated in UV-TiO 2 process and Fenton process, and consequently had suppressing effects on degradation of ACDB.

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Section: Interaction Of Acdb and Cu 2+mentioning

confidence: 85%

“…The spectra correction technique was a new spectral method to study the interaction of ligands and some metal ions or proteins [18,25]. In this work, it was used to study the interaction of ACDB and Cu 2+ .…”

Section: Interaction Of Acdb and Cu 2+mentioning

confidence: 99%

The effects of copper ions on the catalytic degradation of azo dye acid chrome dark blue

Fan

Liu

Huang

et al. 2010

JICS

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“…9B indicates, η of ACBK increased with the addition of more Cu 2+ , indicating that more and more ACBK was bound to Cu 2+ . When the Cu 2+ 's concentration reached to 0.0250 mmol L -1 , almost all ACBK was bound to Cu 2+ with little free ACBK existing in solutions [24]. It is relevant to note that 100-η (%) and δ (%) displayed identical change characteristics.…”

Section: +mentioning

confidence: 97%

“…The spectra correction technique was a new spectral method to study the interaction between ligands and some metal ions or proteins [18,24]. In this work, it was used to study the interaction between ACBK and Cu 2+ .…”

Section: +mentioning

confidence: 99%

The effects of copper ions on the catalytical degradation of azo dye acid chrome blue K

et al. 2009

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Abstract:The effects of Cu 2+ on the catalytical degradation of acid chrome blue K (ACBK) in UV-TiO 2 and H 2 O 2 processes were studied. In these two processes, Cu 2+ markedly depressed the catalytical degradation of ACBK by its interaction with ACBK. Through this interaction, the new complex Cu(ACBK) 2 formed. The formation of this new complex was favorable to protect some groups in ACBK from the oxidation of reactive oxygen generated in UV-TiO 2 and H 2 O 2 processes, and consequently had suppressing effects on degradation of ACBK. In addition, Cu 2+ also inhibited the degradation of ACBK in UV-TiO 2 process by influencing the adsorption of ACBK on the surface of TiO 2 particles.

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“…The most commonly used methods to determine copper ion concentrations in aqueous solutions are atomic absorption spectroscopy (Citak et al 2009;Baysal and Akman 2010;Fernandes et al 2007;Ghaedi et al 2007), inductively coupled plasma mass spectrometry (ICP-MS) (Takara et al 2005;Abbasi et al 2010), and others spectroscopy (Balogh et al 2008;Caldas et al 2011;Wen et al 2011). Moreover, some new combination methods such as continuous flow analysis (Gao et al 2007), flow injection analysis (Zeeb et al 2011;Cassella 2002), kinetic catalytic analysis (Tomiyasu et al 2005;Abbasi et al 2010), and stripping voltammetry analysis (Abbasi et al 2010) have been recently reported. All of them have played important roles in improving the analytical sensitivity, selectivity, and detection efficiency of Cu(II) ions.…”

Section: Introductionmentioning

confidence: 99%

Highly sensitive determination of Cu(II) iron in ng/mL level in natural waters using Sulfochlorophenol S

Zhao

Zhang

2015

Environ Monit Assess

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The highly sensitive complexation of Cu(II) with Sulfochlorophenol S (SCPS) at pH 4.03 was characterized by the spectral correction technique. This reaction was used to determine the Cu(II) content in various sources by the light-absorption ratio variation approach (LARVA). The limit of detection of Cu(II) was only 1.35 ng/mL, thus facilitating the direct monitoring of natural water. The Cu(II) contents in the Huangpu River, Yangtze River, and Taihu Lake of China were determined with satisfactory results, and the recovery rates of Cu(II) using SCPS were between 94.5 and 102.6 %.

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Continuous Flow Analysis Combined with a Light-Absorption Ratio Variation Approach for Determination of Copper at ng/ml Level in Natural Water

Cited by 8 publications

References 27 publications

The effects of copper ions on the catalytic degradation of azo dye acid chrome dark blue

The effects of copper ions on the catalytic degradation of azo dye acid chrome dark blue

The effects of copper ions on the catalytical degradation of azo dye acid chrome blue K

Highly sensitive determination of Cu(II) iron in ng/mL level in natural waters using Sulfochlorophenol S

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