Dispersive liquid–liquid microextraction based on the solidification of floating organic drop followed by ICP-MS for the simultaneous determination of heavy metals in wastewaters

Li, Yong; Peng, Guilong; He, Qiang; Zhu, Honghui; Al-Hamadani, Sulala M. Z. F.

doi:10.1016/j.saa.2014.12.091

Cited by 71 publications

(21 citation statements)

References 31 publications

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“…It is capable of being used in the analysis of environment samples such as surface water, conduit water and loam soil. The detection limits of the proposed method was 0.24-0.81 μg L -1 and 2.42-8.12 μg kg -1 , which can be in accordance with the other methods described in the literature, 10,[21][22][23][24] so do the recoveries and RSDs.…”

Section: Discussionsupporting

confidence: 87%

“…This method improves the mode of phase separation of SFO-DLLME to make it possible to be used in field processing and automated analysis without electric centrifugal equipment. 21 It has been successfully applied in the determination of organic and inorganic compounds such as phosphate, 22 heavy metals, 23 amphetamines, 24 organochlorine pesticides, 25 polycyclic aromatic hydrocarbons. 26 In this paper, the method of SD-SFO-DLLME (solventbased demulsification and solidification of a floating organic drop combined with dispersive liquid-liquid microextraction) with HPLC-UV analysis was developed for the determination of sulfonylurea herbicide residues in water and soil samples.…”

Section: Introductionmentioning

confidence: 99%

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Application of Solvent Demulsification-Dispersive Liquid-Liquid Microextraction Based on Solidification of Floating Organic Drop Coupled with High Perfomence Liquid Chromatography in Determination of Sulfonylurea Herbicides in Water and Soil

Li¹,

Zhu²,

Ren³

et al. 2016

Journal of the Brazilian Chemical Society

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A method for simultaneous determination of nine sulfonylurea herbicides in water and soil samples with solvent demulsification-dispersive liquid-liquid microextraction based on solidification of floating organic drop coupled with high perfomence liquid chromatography was established. 120 μL of 1-dodecanol as extractant and 400 μL of methanol as dispersing reagent were injected into the sample solution adjusted to pH 2.0 to extract the target compounds for high performance liquid chromatography (HPLC) analysis. The detection limits were 0.24-0.81 μg L -1 for water samples and 2.42-8.12 μg kg -1 for soil samples, and the quantification limits were 0.79-2.69 μg L -1 for water samples and 8.06-27.04 μg kg -1 for soil samples respectively. The average recoveries were 78.9-104.8% with the relative standard derivations (RSDs) of 2.73-10.4% for water samples, and 75.5-107% with the RSDs of 5.66-12.4% for soil samples. The method had the advantages of little consumption of organic solvent, low cost and high enrichment factors.

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Section: Discussionsupporting

confidence: 87%

Section: Introductionmentioning

confidence: 99%

Application of Solvent Demulsification-Dispersive Liquid-Liquid Microextraction Based on Solidification of Floating Organic Drop Coupled with High Perfomence Liquid Chromatography in Determination of Sulfonylurea Herbicides in Water and Soil

Li¹,

Zhu²,

Ren³

et al. 2016

Journal of the Brazilian Chemical Society

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“…DLLME-SFO offers high analyte enrichment factors due to the use of small volumes of extractants compared to the volume of the water sample being tested. This method has gained recognition due to many advantages such as: simplicity of the procedure, high recovery, low cost, short extraction time, and the fact that it is not harmful to the environment.On the ground of the review of literature, the use of the DLLME-SFO technique for the separation of organic [23][24][25][26], inorganic compounds and metal ions [27][28][29][30] was described in numerous publications presenting procedures for pretreatment of samples, e.g., tap water, water from the lake, human serum, urine, surficial sediments or beverage samples. A much smaller number of literature reports show the use of this technique for isolation of drugs.…”

mentioning

confidence: 99%

Determination of Budesonide and Sulfasalazine in Water and Wastewater Samples Using DLLME-SFO-HPLC-UV Method

Hryniewicka

Starczewska

Gołębiewska

2019

Water

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Dispersive liquid-liquid microextraction based on solidification of floating organic droplet (DLLME-SFO) was applied to isolate budesonide (BUD) and sulfasalazine (SULF) from aqueous samples. The effects of different parameters on the efficiency on the extraction such as type of extrahent and dispersive solvent, ionic strength, pH of sample, and centrifugation time were investigated. Moreover, the influence of foreign substances on a studied process was tested. The calibration curves were recorded. The linearity ranges for BUD and SULF were 0.022-8.611 µg mL −1 and 0.020-7.968 µg mL −1 with the limit of detection (LOD) 0.011 µg mL −1 and 0.012 µg mL −1 , respectively. The enrichment factors (EF) for two analytes were high: for BUD it was 145.7 and for SULF, 119.5. The elaborated procedure was applied for HPLC-UV determination of these analytes in water and wastewater samples.was quantitated in a range of different matrices using high-performance liquid chromatography with diode array detection or ultraviolet detection (HPLC-DAD and HPLC-UV) [10][11][12], thin-layer chromatography densitometry [13], nuclear magnetic resonance (NMR) [14], spectroflourimetry [15] and liquid chromatography/positive-ion electrospray ionization mass spectrometry (LC-ESI(+)-MS/MS [16]. None of the above methods attempted the simultaneous analysis of BUD and SULF in the same sample.The literature review shows that budesonide assays were made in biological samples [7-9], environmental samples [17,18], pharmaceutical formulations, and cosmetic products [19]. SULF was determined in pharmaceutical preparations [13][14][15], human plasma [10,16], water, and wastewater samples [20,21]. SULF was determined in river samples at the concentration of 15-76 ng L −1 and in wastewater samples at 65 ng L −1 (influent) and 266 ng L −1 (effluent) [20].Traditionally, the sample treatment techniques used to isolate pharmaceuticals from water samples have been the liquid-liquid extraction (LLE) and the solid-phase extraction (SPE) [21]. LLE technique needs large volumes of toxic solvent, and the creation of emulsions is a common problem. However, SPE technique requires column conditioning and a process that is sometimes complicated and time-consuming. Therefore, the development of environmentally friendly pretreatment methods is necessary to overcome such disadvantages. Currently, microextraction techniques are often used to separate biologically active substances from aqueous solutions.A novel dispersive liquid-liquid microextraction based on the solidification of floating organic drop (DLLME-SFO) was introduced by Leong et al. [22]. It involves the use of extraction solvent with a density lower than the density of water and freezing point near to the room temperature. The mixture of the dispersing and extracting solvent is injected into the water sample to form a turbid solution. After centrifugation, the tube is placed in an ice bath to solidify the extractant. The solidified drop is then collected and placed in a conical tube and allowed to melt. The li...

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“…22,25,26 In view of the above, it can be concluded that HFSME-ICP-MS method is a simple, reproducible, sensitive technique. 22,25,26 In view of the above, it can be concluded that HFSME-ICP-MS method is a simple, reproducible, sensitive technique.…”

Section: Analytical Figure Of Meritmentioning

confidence: 92%

Alumina–titania (Al₂O₃–TiO₂) hollow fiber sorptive microextraction coupled to inductively coupled plasma mass spectrometry for determination of trace elements in diesel and gasoline samples

Nomngongo

Ngila

2015

RSC Adv.

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An alumina-titania (Al 2 O 3 -TiO 2 ) hollow fiber membrane was synthesized using the template method coupled with a sol-gel process. The crystal forms of the mixed oxides hollow fiber was evaluated using X-ray diffraction (XRD). The morphological structure and surface characteristics of the Al 2 O 3 -TiO 2 hollow fiber was characterized by scanning electron microscope (SEM) and nitrogen adsorption/desorption BET technique. The synthesized Al 2 O 3 -TiO 2 hollow fiber membrane was combined with inductively coupled plasma mass spectrometry for on-line preconcentration and determination of trace amounts of Co, Cr, Mo, Ni, Sb and V in diesel and gasoline samples. The optimization of the experimental parameters affecting the preconcentration and determination of target analytes was performed using a full 2 4 factorial and central composite designs. Under optimized conditions, limits of detection (LOD) (based on the original sample) and limits of quantification (LOQ) ranged 0.1-0.9 and 0.3-3.0 ng L -1 , respectively. The developed method was applied in the determination of trace elements in real diesel and gasoline samples.

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Dispersive liquid–liquid microextraction based on the solidification of floating organic drop followed by ICP-MS for the simultaneous determination of heavy metals in wastewaters

Cited by 71 publications

References 31 publications

Application of Solvent Demulsification-Dispersive Liquid-Liquid Microextraction Based on Solidification of Floating Organic Drop Coupled with High Perfomence Liquid Chromatography in Determination of Sulfonylurea Herbicides in Water and Soil

Application of Solvent Demulsification-Dispersive Liquid-Liquid Microextraction Based on Solidification of Floating Organic Drop Coupled with High Perfomence Liquid Chromatography in Determination of Sulfonylurea Herbicides in Water and Soil

Determination of Budesonide and Sulfasalazine in Water and Wastewater Samples Using DLLME-SFO-HPLC-UV Method

Alumina–titania (Al₂O₃–TiO₂) hollow fiber sorptive microextraction coupled to inductively coupled plasma mass spectrometry for determination of trace elements in diesel and gasoline samples

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Dispersive liquid–liquid microextraction based on the solidification of floating organic drop followed by ICP-MS for the simultaneous determination of heavy metals in wastewaters

Cited by 71 publications

References 31 publications

Application of Solvent Demulsification-Dispersive Liquid-Liquid Microextraction Based on Solidification of Floating Organic Drop Coupled with High Perfomence Liquid Chromatography in Determination of Sulfonylurea Herbicides in Water and Soil

Application of Solvent Demulsification-Dispersive Liquid-Liquid Microextraction Based on Solidification of Floating Organic Drop Coupled with High Perfomence Liquid Chromatography in Determination of Sulfonylurea Herbicides in Water and Soil

Determination of Budesonide and Sulfasalazine in Water and Wastewater Samples Using DLLME-SFO-HPLC-UV Method

Alumina–titania (Al2O3–TiO2) hollow fiber sorptive microextraction coupled to inductively coupled plasma mass spectrometry for determination of trace elements in diesel and gasoline samples

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Product

Resources

About

Alumina–titania (Al₂O₃–TiO₂) hollow fiber sorptive microextraction coupled to inductively coupled plasma mass spectrometry for determination of trace elements in diesel and gasoline samples