Preconcentration and determination of ultra trace amounts of palladium in water samples by dispersive liquid-liquid microextraction and graphite furnace atomic absorption spectrometry

Shamsipur, Mojtaba; Ramezani, Majid; Sadeghi, Marzieh

doi:10.1007/s00604-009-0186-7

Cited by 63 publications

(16 citation statements)

References 26 publications

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“…Several appropriate technologies are available including precipitation (Safdar et al, 2011), solvent extraction (Hung et al, 2007;Shamsipur et al, 2009), membrane filtration (Borbély and Nagy, 2009;Trivunac and Stevanovic, 2006;Xiang Li et al, 2013), cementation (Aktas, 2011(Aktas, , 2012Morcali et al, 2013c), ion exchange (Godlewska-Żylkiewicz et al, 2000;Shen et al, 2010Shen et al, , 2011 and adsorption (Fırlak et al, 2013;Kyzas et al, 2013;Wang et al, 2011). Comparatively, adsorption seems to be the most suitable as large volumes of very dilute wastes can be treated economically and nearly no waste residue is produced (Morcali et al, 2013a).…”

Section: Introductionmentioning

confidence: 98%

Investigation of adsorption parameters for platinum and palladium onto a modified polyacrylonitrile-based sorbent

Morcali

Zeytuncu

2015

International Journal of Mineral Processing

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Section: Introductionmentioning

confidence: 98%

Investigation of adsorption parameters for platinum and palladium onto a modified polyacrylonitrile-based sorbent

Morcali

Zeytuncu

2015

International Journal of Mineral Processing

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“…In the first approach, ligand is added into the sample before the extraction and dispersive solvents are added (Shamsipur, Ramezani, and Sadeghi 2009;Jia et al 2011). In the second method, ligand is added to the sample solution mixed with the extraction and dispersive solvents (Baliza et al 2009;Rivas, Lopez-Garcia, and Hernandez-Cordoba 2009).…”

Section: Nickel By Dllme and Mis-flame-aas 2199mentioning

confidence: 99%

Dispersive Liquid–Liquid Microextraction of Nickel Prior to Its Determination by Microsample Injection System-Flame Atomic Absorption Spectrometry

et al. 2014

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A sensitive and simple method for the determination of trace nickel was developed by the combination of dispersive liquid-liquid microextraction (DLLME) and microsample injection system-flame atomic absorption spectrometry (MIS-FAAS). Trace nickel was preconcentrated as the 8-hydroxyquinoline chelate by DLLME, and the conditions were optimized by a Plackett-Burman design. Quantitative recovery of nickel (98 AE 1%) was obtained by a sample volume of 7.5 mL at a pH of 6.0. The enrichment factor was 52.5, and the limits of detection and quantitation were 0.1 l g L À1 and 3.0 l g L À1 , respectively. The method was validated by the analysis of a wastewater standard reference material, water samples, and a wire sample. The reported method has superior analytical figures of merit compared with similar methods reported in the literature.

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“…There are many approaches for preconcentration and separation, such as liquid-liquid extraction, 5,6 solid phase extraction, 7−9 ion exchange 10, 11 and HPLC.…”

Section: 4mentioning

confidence: 99%

Determination of Palladium in Water Samples Using Cloud Point Extraction Coupled with Laser Thermal Lens Spectrometry

Han¹,

Huo²,

Yang³

et al. 2015

Journal of the Korean Chemical Society

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ABSTRACT. A preconcentration procedure for determination of palladium by laser thermal lens spectrometry (TLS) is proposed. It is based on cloud point extraction of palladium(II) ions as 2-(3,5-dichloro-2-pyridylazo)-5-dimethylaminoaniline (3,5-diCl-PADMA) complexes using octylphenoxypolyethoxyethanol (Triton X-114) as surfactant. The effects of various experimental conditions such as pH, concentration of ligand and surfactant, equilibration temperature and time on cloud point extraction were studied. Under the optimized conditions, the calibration graph was linear in the range of 0.15~6 ng mL −1, and the detection limit was 0.04 ng mL −1 with an enrichment factor of 22. The sensitivity was enhanced by 846 times when compared with the conventional spectrophotometric method. The recovery of palladium was in the range of 96.6%~104.0%. The proposed method was applied to the determination of palladium in water samples.

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Preconcentration and determination of ultra trace amounts of palladium in water samples by dispersive liquid-liquid microextraction and graphite furnace atomic absorption spectrometry

Cited by 63 publications

References 26 publications

Investigation of adsorption parameters for platinum and palladium onto a modified polyacrylonitrile-based sorbent

Investigation of adsorption parameters for platinum and palladium onto a modified polyacrylonitrile-based sorbent

Dispersive Liquid–Liquid Microextraction of Nickel Prior to Its Determination by Microsample Injection System-Flame Atomic Absorption Spectrometry

Determination of Palladium in Water Samples Using Cloud Point Extraction Coupled with Laser Thermal Lens Spectrometry

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