Novel solid phase extraction procedure for gold(III) on Dowex M 4195 prior to its flame atomic absorption spectrometric determination

Tüzen, Mustafa; Saygı, Kadriye Özlem; Soylak, Mustafa

doi:10.1016/j.jhazmat.2007.12.062

Cited by 148 publications

(44 citation statements)

References 27 publications

(25 reference statements)

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“…2 Thus an accurate, sensitive and selective analytical method is required for gold determination. A wide variety of analytical techniques such as flame atomic absorption spectrometry (FAAS), 3,4 electrothermal atomic absorption spectrometry (ETAAS), 5,6 inductively coupled plasma atomic emission spectrometry (ICP-AES) 7,8 and spectrophotometry 9,10 to determine gold have been explained. The direct determination of gold by most of the analytical techniques suggested is to extend some problems becasue of the interfering matrix components at high concentrations in several real samples, therefore, an effective sample pretreatment step, such as preconcentration of the analyte and matrix isolation, are still necessary to obtain reliable results.…”

Section: Introductionmentioning

confidence: 99%

“…The ion-pair-DLLME (IP-DLLME) has been employed for gold following the formation of an ion pair complex between the AuCl 4 -complex and different counter ions such as amiloride mono hydrochloride, 18 victoria blue R, 19 dicyclohexylamine, 6 and benzyldimethyltetradecyl-ammoniumchloride 20 . For many years, it has been well-known that gold is determined using a spectrophotometric method based on the reaction of AuCl 4 -with the cationic form of Rhodamine B to give a violet ion pair complex. 21,22 However, literature review has reported no study on the application of Rhodamine B for IP-DLLME of Au(III) ions.…”

Section: Introductionmentioning

confidence: 99%

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Ion Pair-Dispersive Liquid-Liquid Microextraction Coupled to Microsample Injection System-Flame Atomic Absorption Spectrometry For Determination of Gold at Trace Level in Real Samples

Höl

Kartal²,

Akdoğan³

et al. 2015

ACSi

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A novel ion pair-dispersive liquid-liquid microextraction (IP-DLLME) of gold followed by its determination with microsample injection system -flame atomic absorption spectrometry (MIS-FAAS) was developed. The extraction method was based on the reaction of anionic tetrachloro gold(III) complex with the cationic form of Rhodamine B to give a violet ion pair complex, which is extracted from 1.0 mol L -1 HCl solution of 8.0 mL to fine droplets of chloroform of 500 μL. A Plackett-Burman experimental design of MINITAB statistical program was employed to optimize the influence of main parameters to be controlled in DLLME. After optimizing the extraction conditions, gold was quantitatively recovered by preconcentration factor 40, limit of detection (LOD) 1.8 μg L -1 and relative standard deviation less than 6.8%. The proposed method was successfully applied to the preconcentration and determination of gold in some samples such as tap water, waste water, copper electrolysis solution and copper wire coated with nickel.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Ion Pair-Dispersive Liquid-Liquid Microextraction Coupled to Microsample Injection System-Flame Atomic Absorption Spectrometry For Determination of Gold at Trace Level in Real Samples

Höl

Kartal²,

Akdoğan³

et al. 2015

ACSi

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show abstract

“…FAAS is still being used because it combines a fast analysis time, a relative simplicity and a cheaper cost. All of these features have been responsible for its broad utilization in the determination of trace elements in different samples [8][9][10]. However, trace level determination of gold by FAAS is difficult due to lower levels of gold than detection limit of FAAS and effects of the matrix components [9].…”

Section: Introductionmentioning

confidence: 99%

“…All of these features have been responsible for its broad utilization in the determination of trace elements in different samples [8][9][10]. However, trace level determination of gold by FAAS is difficult due to lower levels of gold than detection limit of FAAS and effects of the matrix components [9]. To overcome these limitations on the determination of gold by FAAS, separation-enrichment techniques including solid phase extraction (SPE), cloud point extraction, liquid-liquid extraction (LLE), coprecipitation, etc.…”

Section: Introductionmentioning

confidence: 99%

Ultrasound-Assisted Emulsification Dispersive Liquid-Liquid Microextraction Based on Solidification of Floating Organic Droplet for Separation of Trace Gold Prior to Flame Atomic Absorption Spectroscopy Determination

Mohammadi¹,

Karimi²,

Shiebani³

et al. 2011

AJAC

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In the present work, a ultrasound-assisted emulsification dispersive liquid-liquid microextraction based on solidification of floating organic droplet method has been developed as a sample preparation method prior to flame atomic absorption spectrometry determination of trace amounts of gold in the standard, wastewater and river water samples. In the proposed method, 1-dodecanol and 5-(4-dimethylamino-benzylidene) were used as extraction solvent and chelating agent, respectively. Several factors that may be affected on the extraction process, such as type and volume of the extraction solvent, ionic strength, pH of the aqueous solution, extraction temperature and extraction time were studied and optimized. Under the best experimental conditions, the calibration curve exhibited linearity over the range of 8.0 ng·mL −1 -3.0 µg·mL −1 with a correlation coefficient of 0.9978 and detection limit based on three times the standard deviation of the blank signal was 1.5 ng·mL −1 . Eight replicate determinations of 0.2 and 1.0 g·mL −1 of gold gave a mean absorbance of 0.051 and 0.253 with relative standard deviations of ±2.3% and ±1.5%, respectively. Finally, the developed method was successfully applied to the extraction and determination of gold ions in a silica ore, wastewater, river water and standard samples and satisfactory results were obtained.

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“…Some synthetic polymers, copolymers and their derivatives were widely investigated as adsorbents [10][11][12][13][14][15][16] . The strongly acidic resins are the most employed ion exchangers in operations for cation separations from industrial wastewaters 17,18 .…”

mentioning

confidence: 99%

Modification of industrial divinyl rubber by oxidative chlorophosphorylation and assess-ment of metal ion removal efficiency of obtained polymer sorbent

Akhmedov

Alfadul

Maharramov

et al. 2015

Polish Journal of Chemical Technology

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The main goal of this study was the preparation of materials containing phosphoric func-tionalities on the base of industrial polymer -divinyl rubber and the assessment of their removal effi ciency of heavy metals from aqueous solutions. The new method concerns the oxidative chlo-rophosphorylation of divinyl rubber by PCl 3 with the following modifi cation of obtained inter-mediates to create -PO(OH) 2 , -OPO(OH) 2 groups in the polymer chain. The obtained modifi ed polymers get some new properties such as complex formation and capability for ion exchange. The nature and distribution of phosphoric functionalities in the polymer were studied by the methods of NMRand FTIR-spectroscopy, thermal analysis and scanning electron microscopy. The sorption properties of synthesized polymers towards some cations (Cu +2 , Ni +2 , Co +2 and Zn +2) from water solutions have been tested. It has been shown that the metal removal effi ciency of prepared material depends on pH of medium, initial concentration and type of metal ions.Keywords: Divinyl rubber, modifi cation by chlorophosphorylation, nature and distribution of phosphoric functionalities in the polymer matrix, heavy metal ions, sorption.

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Novel solid phase extraction procedure for gold(III) on Dowex M 4195 prior to its flame atomic absorption spectrometric determination

Cited by 148 publications

References 27 publications

Ion Pair-Dispersive Liquid-Liquid Microextraction Coupled to Microsample Injection System-Flame Atomic Absorption Spectrometry For Determination of Gold at Trace Level in Real Samples

Ion Pair-Dispersive Liquid-Liquid Microextraction Coupled to Microsample Injection System-Flame Atomic Absorption Spectrometry For Determination of Gold at Trace Level in Real Samples

Ultrasound-Assisted Emulsification Dispersive Liquid-Liquid Microextraction Based on Solidification of Floating Organic Droplet for Separation of Trace Gold Prior to Flame Atomic Absorption Spectroscopy Determination

Modification of industrial divinyl rubber by oxidative chlorophosphorylation and assess-ment of metal ion removal efficiency of obtained polymer sorbent

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