Application of Ultrasonic Assisted-Dispersive Solid Phase Extraction Based on Ion-Imprinted Polymer Nanoparticles for Preconcentration and Trace Determination of Lead Ions in Food and Water Samples

Kakavandi, Masoud Ghanbari; Behbahani, Mohammad; Omidi, Fariborz; Hesam, Ghasem

doi:10.1007/s12161-016-0788-8

Cited by 80 publications

(19 citation statements)

References 34 publications

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“…In this study, k and C 0 were set at 3 and 3, respectively, which meant 15 experiments had to be done. [38,39] The obtained data showed a good fitting with the second-order polynomial equations. Values of 96.8 and 91.2% were obtained for R 2 and adjusted R 2 , respectively.…”

Section: Optimization Of Sorption Stepmentioning

confidence: 67%

“…These designs are rotatable (or near rotatable) and require three levels of each factor. [38,39] The applied levels of factors for the aim of selecting from the primary experiments based on one variable at a time are presented in Table S1 (supporting information). BBD is suitable for finding quadratic response surface and creation of a second-order…”

Section: Optimization Of Sorption Stepmentioning

confidence: 99%

“…The bars, extending beyond the line, correspond to effects that are statistically significant at the 95% confidence level. [38,39] Increase or decrease of retention by UA-D-μSPE is shown with the positive or negative mark (corresponding to grey or blue colour), respectively. [38,39] By the optimization of factors using BBD, we can understand that three selected factors for the optimization had a significant and positive effect on the retention of target ions by the applied sorbent under sonication conditions.…”

Section: Optimization Of Sorption Stepmentioning

confidence: 99%

“…Ultrasonic-assisted SPE is applied for rapid extraction of analytes in shorter time according to the high available surface area and vacant sites of the sorbent by dispersion of the sorbent into solution via ultrasonic power. [38][39][40][41][42][43] Optimization of factors using experimental design methodology leads to cost-effective and acceptable results with least number of experimental runs. With experimental design methodology the interaction and relationship among variables can be evaluated.…”

Section: Introductionmentioning

confidence: 99%

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Application of a dispersive micro‐solid‐phase extraction method for pre‐concentration and ultra‐trace determination of cadmium ions in water and biological samples

Behbahani¹,

Veisi²,

Omidi

et al. 2017

Applied Organom Chemis

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A method for the trace determination of cadmium ions in water, human urine and human blood serum samples using ultrasonic‐assisted dispersive micro‐solid‐phase extraction (UA‐D‐μSPE) was developed. Silica‐coated magnetic nanoparticles were coated with polythiophene, and the resulting sorbent was characterized using thermogravimetry, differential thermal analysis, scanning electron microscopy, Fourier transform infrared spectrometry and X‐ray diffraction. Following UA‐D‐μSPE, cadmium ions were quantified using graphite furnace atomic absorption spectrometry. A Box–Behnken design was used for optimization of important sorption and desorption parameters in UA‐D‐μSPE: in the sorption step, pH of solution, sorption amount and sonication time for sorption; in the desorption step, concentration of eluent, volume of eluent and sonication time. The optimum conditions for the method were: pH of solution, 7.5; sonication time for sorption, 3 min; sorption amount, 35 mg; type and concentration of eluent, HCl and 1.1 mol l−1; volume of eluent, 360 μl; sonication time for desorption, 110 s. Under the optimized conditions the limit of detection and relative standard deviation for the detection of cadmium ions by UA‐D‐μSPE were found to be 0.8 ng l−1 and <6%, respectively.

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Section: Optimization Of Sorption Stepmentioning

confidence: 67%

Section: Optimization Of Sorption Stepmentioning

confidence: 99%

Section: Optimization Of Sorption Stepmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Application of a dispersive micro‐solid‐phase extraction method for pre‐concentration and ultra‐trace determination of cadmium ions in water and biological samples

Behbahani¹,

Veisi²,

Omidi

et al. 2017

Applied Organom Chemis

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“…But SPE have some disadvantages such as: time consuming, the complexity of set‐up, and expensive SPE columns. To solve these problems, dispersive micro solid phase extraction (DμSPE), an attractive sorbent based micro extraction technique, has been developed . This form of SPE is performed by adsorption of target analytes on to the sorbent which has been dispersed in the solution.…”

Section: Introductionmentioning

confidence: 99%

Nitrogen doped nano porous graphene as a sorbent for separation and preconcentration trace amounts of Pb, Cd and Cr by Ultrasonic assisted in‐syringe dispersive micro solid phase extraction

Lotfi

Mousavi

Sajjadi

2017

Applied Organom Chemis

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Nitrogen doped nano porous graphene was used as an efficient sorbent in solid‐phase extraction process for simultaneous separation and pre‐concentration of metal ions lead (II), cadmium(II), and chromium(III)) in biological samples. Ultrasonic assisted in‐syringe dispersive micro solid phase extraction coupled with micro sampling atomic absorption spectrometry was utilized for the determination of metal ions. Nitrogen doped nano porous graphene was synthesized as a nano sorbent by chemical vapour deposition method. Methane and aniline were used as carbon and nitrogen sources. The characterization of sorbent was performed by field emission scanning electron microscope, transmission electron microscopy, atomic force microscope, fourier transform infrared, chemical element analysis and raman analysis. Effective parameters on the extraction efficiency such as pH, sorbent dosage, eluent volume and eluent concentration were optimized by central composite design and desirability function. Experimental results indicate that the optimal conditions for this extraction were pH = 6.4, 1.42 mg of sorbent, 100 μL of eluent, and 0.84 mol L‐1 of eluent concentration. The detection limits are as low as 1.5, 0.3 and 0.9 μg L‐1 for lead, cadmium, and chromium, respectively. The intra‐day precisions were 3.6, 4.38 and 2.94 and Inter‐day precision were 4.83, 5.26 and 4.52 for lead, cadmium, and chromium, respectively. Method performance was investigated by determination of mentioned heavy metals in complicated biological matrixes such as human plasma, urine and saliva samples with good recoveries.

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Cyclodextrin‐assisted dispersive liquid–liquid microextraction for the preconcentration of carbamazepine and clobazam with subsequent sweeping micellar electrokinetic chromatography

Chen

Chang

2018

J of Separation Science

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A new version of dispersive liquid-liquid microextraction, namely, cyclodextrin-assisted dispersive liquid-liquid microextraction, with subsequent sweeping micellar electrokinetic chromatography has been developed for the preconcentration and sensitive detection of carbamazepine and clobazam. α-Cyclodextrin and chloroform were used as the dispersive agent and extraction solvent, respectively. After the extraction, carbamazepine and clobazam were analyzed using micellar electrokinetic chromatography with ultraviolet detection. The detection sensitivity was further enhanced using the sweeping technique. Under optimal extraction and stacking conditions, the calibration curves of carbamazepine and clobazam were linear over a concentration range of 2.0-200.0 ng/mL. The method detection limits at a signal-to-noise ratio of 3 were 0.6 and 0.5 ng/mL with sensitivity enhancement factors of 3575 and 4675 for carbamazepine and clobazam, respectively. This developed method demonstrated high sensitivity enhancement factors and was successfully applied to the determination of carbamazepine and clobazam in human urine samples. The precision and accuracy for urine samples were less than 4.2 and 6.9%, respectively.

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Application of Ultrasonic Assisted-Dispersive Solid Phase Extraction Based on Ion-Imprinted Polymer Nanoparticles for Preconcentration and Trace Determination of Lead Ions in Food and Water Samples

Cited by 80 publications

References 34 publications

Application of a dispersive micro‐solid‐phase extraction method for pre‐concentration and ultra‐trace determination of cadmium ions in water and biological samples

Application of a dispersive micro‐solid‐phase extraction method for pre‐concentration and ultra‐trace determination of cadmium ions in water and biological samples

Nitrogen doped nano porous graphene as a sorbent for separation and preconcentration trace amounts of Pb, Cd and Cr by Ultrasonic assisted in‐syringe dispersive micro solid phase extraction

Cyclodextrin‐assisted dispersive liquid–liquid microextraction for the preconcentration of carbamazepine and clobazam with subsequent sweeping micellar electrokinetic chromatography

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