On-line preconcentration/determination of copper in parenteral solutions using activated carbon by inductively coupled plasma optical emission spectrometry

Takara, Eduardo A.; Cabello, S.D. Pasini; Cerutti, Soledad; Gásquez, José A.; Martínez, Luis D.

doi:10.1016/j.jpba.2005.04.010

Cited by 54 publications

(32 citation statements)

References 21 publications

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“…Figure 4 In pH 1.0-3.0, Fe(III) and Al(III) were not enriched at all, either. At pH≥4.0, Al(OH) 3 and Fe(OH) 3 , which are formed due to the hydrolytic decomposition of partial Fe(III) and Al(III), were adsorbed and enriched on the surface of microcrystalline TPM. In pH 1.0-6.0, Cu(II), Hg(II) and Zn(II) were nearly totally retained on the surface of microcrystalline TPM without the effect of different acidity.…”

Section: Effect Of Ph On the Recovery Yield Of Different Metal Ionsmentioning

confidence: 99%

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Study on Preconcentration of Trace Copper Using Microcrystalline Triphenylmethane Loaded with Malachite Green

Liang

Zhao

et al. 2007

Chin. J. Chem.

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The paper describes a novel method for copper preconcentration using microcrystalline triphenylmethane loaded with malachite green prior to the determination by the flame atomic absorption spectrometry (FAAS). Under the optimum conditions, Cu(II) can be totally adsorbed on the surface of microcrystalline triphenylmethane, and completely separated from Pb(II), Cd(II), Co(II), Cr(III), Ni(II), Mn(II), Fe(III) and Al(III) by controlling acidity. The preconcentration factor of this proposed method is 200. The recovery is in a range of 97.5%-105%. The relative standard deviation (RSD) is not beyond 3.0%. The proposed method has been successfully applied to the determination of trace copper in various water samples with satisfactory results.

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Section: Effect Of Ph On the Recovery Yield Of Different Metal Ionsmentioning

confidence: 99%

“…1 Mean daily copper intake for human is 1.5 to 3.0 mg. 2 Copper deficiency may result in the skeletal abnormallities of osteoporosis and retarded bone growth. 3 However, too much intake of copper may be harmful to humans. At higher levels, copper can bind to the cell membrane and hinder the transport process through the cell wall.…”

Section: Introductionmentioning

confidence: 99%

Study on Preconcentration of Trace Copper Using Microcrystalline Triphenylmethane Loaded with Malachite Green

Liang

Zhao

et al. 2007

Chin. J. Chem.

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“…Consequently, a number of sensitive techniques, e.g. atomic absorption spectroscopy [4], atomic emission spectroscopy [5,6] and mass spectroscopy [7] have been developed to detect cations at low concentrations. However, these techniques require expensive instrumentation and laboratory infrastructure that is not easily portable to the point of need [8].…”

Section: Introductionmentioning

confidence: 99%

Fibre optic absorbance meter with low limit of detection for waterborne cations

Tuwei

Williams

Grell

2016

Sensors and Actuators B: Chemical

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We report an evanescent wave based fibre optic absorbance meter that enables the colorimetric detection of waterborne cations with water insoluble chromoionophoric sensitisers. This establishes an alternative to the PVC membrane based transducers that are conventionally used for this purpose. Here, a water insoluble sensitiser is coated as a thin film on an unclad section of a multimode optical fibre to overlap with the evanescent field of a light beam propagating along the fibre core. The colorimetric response of the sensitiser when in contact with waterborne cation leads to increased absorption of virtual photons associated with the evanescent field. The resulting intensity loss of the propagating beam is detected by a bespoke newly designed self-referenced evanescent wave absorbance meter with beam intensity modulation and Lock-in amplification. We validate our transducer with the well characterised water insoluble sensitizer, 1-(2-pyridylazo)-2-naphthol (PAN), for the detection of aqueous Zn 2+ cations. We find a limit of detection (LoD) of 54 nM Zn 2+ , 28 times lower compared to a PVC membrane based sensor using same sensitiser for same cation (Albero et al., Journal of Pharmaceutical and Biomedical Analysis 29 (2002), 779). Our evanescent wave absorbance meter can easily be adapted to other colorimetric sensitisers, including chromoionophoric complex forming macrocycles.

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“…Among them, solid phase extraction due to advantages such as high efficiency, simplicity, rapidity, and low consumption of material has found increasing application in the enrichment of trace metal ions and elimination of matrix interference prior to FAAS analysis [13][14][15][16][17][18][19][20][21][22][23]. Use of various types of sorbents for separation and/or preconcentration of metal ions has been gaining popularity because of its high concentrating ability and simple operation.…”

Section: Introductionmentioning

confidence: 99%

<b>Preconcentration and extraction of copper(II) on activated carbon using ethyl-2-quinolyl-β (<i>p</i>-carboxyphenyl hydrazone)dioxo propionate</b>

Ghaedi

Ahmadi

Baezat³

et al. 2008

Bull. Chem. Soc. Eth.

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ABSTRACT. Activated carbon modified method was used for the preconcentration and determination of copper content in real samples such as tap water, wastewater and a synthetic water sample by flame atomic absorption spectrometry. The copper(II) was adsorbed quantitatively on activated carbon due to its complexation with ethyl-2-quinolyl-β(p-carboxyphenyl hydrazone)dioxo propionate (EQCPDP). The adsorbed copper(II) ion on solid phase was eluted quantitatively by using nitric acid. The important parameters such as pH, amount of carrier, flow rate, amount of activated carbon and type and concentration of eluting agent for obtaining maximum recovery were optimized. The method at optimum conditions gives linear concentration range of 0.05-1.0 µg mL -1 of copper(II) with correlation coefficient of 0.9994 and the detection limit of 0.99 ng mL -1 . The preconcentration leads to enrichment factor of 175 and break through volume of 1750 mL. The method has good tolerance limit of interfering ions and selectivity and it has been successfully applied for determination of copper content in real sample such as blood, wastewater and river sample.

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On-line preconcentration/determination of copper in parenteral solutions using activated carbon by inductively coupled plasma optical emission spectrometry

Cited by 54 publications

References 21 publications

Study on Preconcentration of Trace Copper Using Microcrystalline Triphenylmethane Loaded with Malachite Green

Study on Preconcentration of Trace Copper Using Microcrystalline Triphenylmethane Loaded with Malachite Green

Fibre optic absorbance meter with low limit of detection for waterborne cations

<b>Preconcentration and extraction of copper(II) on activated carbon using ethyl-2-quinolyl-β (<i>p</i>-carboxyphenyl hydrazone)dioxo propionate</b>

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On-line preconcentration/determination of copper in parenteral solutions using activated carbon by inductively coupled plasma optical emission spectrometry

Cited by 54 publications

References 21 publications

Study on Preconcentration of Trace Copper Using Microcrystalline Triphenylmethane Loaded with Malachite Green

Study on Preconcentration of Trace Copper Using Microcrystalline Triphenylmethane Loaded with Malachite Green

Fibre optic absorbance meter with low limit of detection for waterborne cations

<b>Preconcentration and extraction of copper(II) on activated carbon using ethyl-2-quinolyl-&beta; (<i>p</i>-carboxyphenyl hydrazone)dioxo propionate</b>

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<b>Preconcentration and extraction of copper(II) on activated carbon using ethyl-2-quinolyl-β (<i>p</i>-carboxyphenyl hydrazone)dioxo propionate</b>