Application of multiwalled carbon nanotubes modified by diphenylcarbazide for selective solid phase extraction of ultra traces Cd(II) in water samples and food products

Behbahani, Mohammad; Bagheri, Abbas; Amini, Mostafa M.; Sadeghi, Omid; Salarian, Mani; Najafi, Fatemeh; Taghizadeh, Mohsen

doi:10.1016/j.foodchem.2013.03.011

Cited by 77 publications

(20 citation statements)

References 26 publications

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“…A comparison of the extraction procedure with the other reported preconcentration methods [30][31][32][33][34][35] for zinc and cadmium ions are given in Table 8. Some parameters obtained were comparable to those presented by other methods described in the literature.…”

Section: Comparison With Other Methodsmentioning

confidence: 99%

Solid phase extraction of trace amounts of zinc and cadmium ions using perlite as a supper sorbent

Roushani¹,

Baghelani²,

Abbasi³

et al. 2016

Bull. Chem. Soc. Eth.

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ABSTRACT.A novel method using a packed column with perlite as a new sorbent has been developed for preconcentration of trace amounts of zinc and cadmium prior to their determination by flame atomic absorption spectrometry. Several factors that may be affected on the solid phase extraction (SPE) process, such as pH, sample volume, flow rate, volume and concentration of eluent were studied and optimized. Linearity was maintained between 0.001-0.1 µg mL −1 for zinc, and 0.001-0.3 µg mL −1 for cadmium. Detection limits based on 3Sb for zinc and cadmium were 1.8 and 1.6 ng mL −1 , respectively. The relative standard deviations of eight replicate measurements of 0.02 µg mL −1 of zinc and 0.05 µg mL −1 of cadmium ions were 2.1% and 1.8%, respectively. Finally, the developed method was successfully applied to extraction and determination of the zinc and cadmium ions in the water and food samples and satisfactory results were obtained.

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Section: Comparison With Other Methodsmentioning

confidence: 99%

Solid phase extraction of trace amounts of zinc and cadmium ions using perlite as a supper sorbent

Roushani¹,

Baghelani²,

Abbasi³

et al. 2016

Bull. Chem. Soc. Eth.

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“…For metal ion analysis, multiple chelating reagents or thiolation reagents such as bis(5-bromosalicylidene)-1,3-propandiamine [18], diphenylcarbazide [19], dimethyl acetylenedicarboxylate [20] and (3-mercaptopropyl) silanetriolate [21] were coupled to the surfaces of CNPs to extract metal ions with improved selectivity. In addition, to eliminate interferences originated from sample matrix in metal ion analysis, CNPs could also be modified with matrix-excluded coatings such as restricted access carbon nanotubes (RACNTs) [22].…”

Section: Carbon Nanoparticlesmentioning

confidence: 99%

Recent advances in applications of nanomaterials for sample preparation

et al. 2016

Talanta

124

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“…On the other hand, recent information about the interaction of silver with essential nutrients, especially selenium, copper, Vitamins E, and B 12 , has focused attention on its potential toxicity (Environmental Protection Agency EPA et al 1980). Due to these important points, the accurate determinations of trace heavy metals are important part of the studies in analytical chemistry (Soylak and Cay 2007;Behbahani et al 2013aBehbahani et al , 2014aTuzen et al 2013). Flame atomic absorption spectrometry (FAAS) is relatively simple and available technique in many laboratories for heavy metal determinations (Behbahani et al 2014d, e, f, g).…”

Section: Introductionmentioning

confidence: 99%

Trace monitoring of silver ions in food and water samples by flame atomic absorption spectrophotometry after preconcentration with solvent-assisted dispersive solid phase extraction

Omidi

Behbahani

Shahtaheri

et al. 2015

Environ Monit Assess

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In this research, a new sample treatment technique termed solvent-assisted dispersive solid phase extraction (SADSPE) was developed. The new method was based on the dispersion of the sorbent into the sample to maximize the contact surface. In this approach, the dispersion of the sorbent at a very low milligram level was achieved by injecting a mixture solution of the sorbent and disperser solvent into the aqueous sample. Thereby, a cloudy solution formed. The cloudy solution resulted from the dispersion of the fine particles of the sorbent in the bulk aqueous sample. After extraction, the cloudy solution was centrifuged and the enriched analytes in the sediment phase dissolved in ethanol and determined by FAAS. Under the optimized conditions, the detection limit for silver ions was 0.8 μg L(-1). The relative standard deviations for six separate extraction experiments for determination of 5 and 200 μg L(-1) of silver ions was 3.4 and 3.1 %. The preconcentration factor was found to be 61.7. SADSPE was successfully applied for trace determination of silver ions in water and food samples.

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Application of multiwalled carbon nanotubes modified by diphenylcarbazide for selective solid phase extraction of ultra traces Cd(II) in water samples and food products

Cited by 77 publications

References 26 publications

Solid phase extraction of trace amounts of zinc and cadmium ions using perlite as a supper sorbent

Solid phase extraction of trace amounts of zinc and cadmium ions using perlite as a supper sorbent

Recent advances in applications of nanomaterials for sample preparation

Trace monitoring of silver ions in food and water samples by flame atomic absorption spectrophotometry after preconcentration with solvent-assisted dispersive solid phase extraction

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