Solid Phase extraction for trace amount Cu (II) by C18 modified carbon Nano tube and cupferron ligand in waste water Sample and determination it by flame atomic adsorption.

Moghimi, Ali; Hosseini, Seyed Ali; Far, Ali Mazlomi

doi:10.13005/ojc/310129

Orient. J. Chem

2015

DOI: 10.13005/ojc/310129

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Solid Phase extraction for trace amount Cu (II) by C18 modified carbon Nano tube and cupferron ligand in waste water Sample and determination it by flame atomic adsorption.

Ali Moghimi¹,

Seyed Ali Hosseini²,

Ali Mazlomi Far³

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“…15, 16 Beside SPE, some other analytical methods for cations determination are suggested by researchers, of which, modified carbon paste electrode based on multi-walled carbon nanotubes are the most important. 17,18 The aim of the present study was to develop a sodium dodecyl sulfate (SDS) immobilized on multiwalled carbon nanotubes (MWCNT) to act as SPE sorbents for the determination of Ag in radiological waste.…”

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Flame Atomic Absorption Spectrometric Determination of Trace Amounts of Silver in Radiological Waste Samples After Solid Phase Extraction Using Multi-Walled Carbon Nano-Tubes Modified by Sodium Dodecyl Sulfate

Kahkha

Kaykhaii

2015

J. Chil. Chem. Soc.

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Multi-walled carbon nano-tubes was modified with sodium dodecyl sulfate and used as a solid phase extraction adsorbent for the determination of trace silver in radiological waste samples by flame absorption spectrometry. The effects of pH, initial silver ion concentration, sample flow rate and volume, elution conditions and the amount of adsorbent on the recovery of the analyte were investigated and optimized. The results showed that silver could be fully adsorbed at pH 7.0 and eluted by 5.0 mL 2% thiourea in HNO 3 (0.1 mol.L -1 ). Under the optimized conditions, the adsorption capacity of modified multi-walled carbon nano-tubes was found to be 3.2 mg.g -1 of silver. The detection limit of the proposed method was 350 µg. L -1 for silver with an enrichment factor of 35. The relative standard deviation for ten replicate measurement of 0.5 μg of silver from 700 mL samples was 4.7%. The analytical procedure was successfully applied to the determination of trace silver in a few radiological waste samples with the recoveries between 94% and 105%. Graphite furnace atomic absorption spectrometric technique was also used for the comparison with the suggested method for the determination of the real samples.

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confidence: 99%

Flame Atomic Absorption Spectrometric Determination of Trace Amounts of Silver in Radiological Waste Samples After Solid Phase Extraction Using Multi-Walled Carbon Nano-Tubes Modified by Sodium Dodecyl Sulfate

Kahkha

Kaykhaii

2015

J. Chil. Chem. Soc.

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Solid Phase extraction for trace amount Cu (II) by C18 modified carbon Nano tube and cupferron ligand in waste water Sample and determination it by flame atomic adsorption.

Cited by 1 publication

References 24 publications

Flame Atomic Absorption Spectrometric Determination of Trace Amounts of Silver in Radiological Waste Samples After Solid Phase Extraction Using Multi-Walled Carbon Nano-Tubes Modified by Sodium Dodecyl Sulfate

Flame Atomic Absorption Spectrometric Determination of Trace Amounts of Silver in Radiological Waste Samples After Solid Phase Extraction Using Multi-Walled Carbon Nano-Tubes Modified by Sodium Dodecyl Sulfate

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