Combination of cloud point extraction and flame atomic absorption spectrometry for preconcentration and determination of nickel and manganese ions in water and food samples

Arpa, Çiğdem; Efeçınar, M.; Şatıroğlu, Nuray

doi:10.1016/j.jhazmat.2009.11.084

Cited by 81 publications

(14 citation statements)

References 34 publications

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“…CPE consists of three steps: (i) solubilize the analytes in the micelle aggregates; (ii) cloudiness; and (iii) phase separation for the analysis [48]. Nonionic surfactants can be able to form a micelle in aqueous solutions and become turbid at a specific temperature which is described as cloud point temperature.…”

Section: Cloud-point Extractionmentioning

confidence: 99%

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Overview of Green Sample Preparation Techniques in Food Analysis

Demirhan¹,

Kara²,

Demirhan³

2017

Ideas and Applications Toward Sample Preparation for Food and Beverage Analysis

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Nowadays, the significance of food analysis could be emphasized in consequence of growing world population besides the increased consumer demands for the safe food. The reliability and accuracy of analysis are highly affected by sample preparation, extraction, enrichment, and isolation of the analytes. Traditional sample preparation techniques are not only costly but also time-consuming and generally labor-intensive, and furthermore, these techniques required high solvent content, which generates waste, pollutes sample, and enriches the analyte for the food analysis. In recent years, new extraction techniques have been discovered as an alternative to the conventional sampling procedure. Simple, fast, cost-effective and green (environmentally friendly) techniques can be preferred gradually instead of traditional methodologies in order to the extraction of the sample. The aim of the chapter will be to compile and discuss the advantages, pro and cons, and use of some sample preparation techniques that are relevant to the green chemistry.

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Section: Cloud-point Extractionmentioning

confidence: 99%

“…Diluted solvents of the surfactant can be used as an extractor media in the CPE, resulting in lower laboratory waste and cost-effective likely being economical reagents. Also, surfactants are less flammable than organic solvents [48].…”

Section: Cloud-point Extractionmentioning

confidence: 99%

Overview of Green Sample Preparation Techniques in Food Analysis

Demirhan¹,

Kara²,

Demirhan³

2017

Ideas and Applications Toward Sample Preparation for Food and Beverage Analysis

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“…The formation of metal complexes and their chemical stability are important aspects influencing the EF of CPE. The pH value plays a unique role in the formation of the complex and subsequent extraction, which is considered to be a main parameter for CPE (Apra Sahin et al, 2010;Afkhami et al, 2009;Ghaedi et al, 2008). In this work, the pH values were examined in the range of 7.0 to 10.0 adjusted by Na 2 B 4 O 7 -NaOH buffer to obtain the desired preconcentration efficiency.…”

Section: Optimization Of Phmentioning

confidence: 99%

“…Copper (Cu) is an essential trace element to humans, but excessive amounts can cause nausea, vomiting, hemolytic jaundice, kidney failure, and depression of the central nervous system. Nickel (Ni) is also considered to be essential to humans; however, in some cases Ni in low concentrations can cause an allergic reaction, and certain nickel compounds may be carcinogenic (Apra Sahin et al, 2010;Shemirani et al, 2006;Underwood, 1977).…”

mentioning

confidence: 99%

“…The surfactant‐rich phase is then determined by various spectrometric methods (Tabrizi, 2007; Stalikas, 2002). Cloud point extraction is a simple, inexpensive, highly efficient, and minimally toxic method for the enrichment of heavy metals in water (Apra Sahin et al, 2010; Ghaedi et al, 2009; Chen et al, 2005). It has been widely applied for the separation and preconcentration of heavy metals in water samples combined with a variety of analytical methods, including flame atomic absorption spectrometry (FAAS) (Wen et al, 2012b; Candir et al, 2008), graphite furnace atomic absorption spectrometry (GFAAS) (Liang and Sang, 2008; Sun et al, 2006; Chen et al, 2005; Yuan et al, 2004), fluorometry (Hosseini and Belador, 2009), inductively coupled plasma atomic emission spectrometry (Gil et al, 2010), inductively coupled plasma–mass spectrometry (Othman et al, 2012; Djedjibegovic et al, 2012; Rahmi et al, 2007; Rahman et al, 2005), and chemiluminescence (Yang et al, 2003).…”

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confidence: 99%

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Determination of Lead, Cadmium, Copper, and Nickel in the Tonghui River of Beijing, China, by Cloud Point Extraction-High Resolution Continuum Source Graphite Furnace Atomic Absorption Spectrometry

2013

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Heavy metal contamination of water has become an important problem in recent years. Most hazardous heavy metals exist in environmental water in trace or ultra-trace amounts, which requires establishing highly sensitive analytical methods. In this research, quantitative analyses were performed using high-resolution continuum source graphite furnace atomic absorption spectrometry combined with cloud point extraction (CPE) to determine Pb, Cd, Cu, and Ni levels in environmental surface water. By optimizing the CPE conditions, the enrichment factors were 29 for Pb, Cd, and Cu and 25 for Ni. The limits of detection (LOD) were 0.080, 0.010, 0.035, and 0.014 μg L for Pb, Cd, Cu, and Ni, respectively. The sensitivity of the method is comparable with those reported in previous investigations using various methods and improves outcome by 2 to 3 orders of magnitude compared with the LODs of the current national standard methods of China. Our method was used to determine Pb, Cd, Cu, and Ni in 55 water samples collected from the Tonghui River, which is the principal river in the urban area of Beijing, China. The results indicated that the distributions of the four heavy metals in the Tonghui River were related with the environments. The levels of Pb and Ni exhibit increasing trends along the river from upstream to downstream possibly due to the existence of some chemical factories in the downstream area. Lead, Cd, Cu, and Ni averaged 13.9, 0.8, 46.8, and 38.5%, respectively, of the total amount of the determined heavy metals. The levels of the four heavy metals conformed to the Environmental Quality Standards for Surface Water (Grade I) of China. This work provides a reliable quantitative method to determine trace-amount heavy metals in water, which lays a foundation for establishing standards and regulations for environmental water protection.

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Determination of Cu, Fe, and Ni in Spices after Preconcentration on Diaion‐HP 20 Resin as Their Zincon Complexes

Karatepe

Soylak

Elçi

2011

CLEAN Soil Air Water

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In this work, a new separation-preconcentration method was developed for the determination of trace amounts of Cu(II), Ni(II), and Fe(III) by flame atomic absorption spectrometry (FAAS). Analytes were complexed by using zincon (2-[2-[alpha(2-hydroxy-5-sulfophenylazo) benzylidene] hydrazino] benzoic acid sodium salt). The analyte ions were quantitatively adsorbed on a Diaion HP-20 resin at pH 5. The retained metal ions on the resin were eluted by acetone. The analytical parameters such as pH of the sample, eluent type and volume, sample volume, and flow rates of the solution and the eluent were investigated. The influences of concomitant ions on the recoveries of the analytes were also examined. The instrumental detection limits for the analytes after application of the presented solid-phase extraction procedure were in the range of 0.72-1.41 mg/L. The validation of the presented procedure was checked by analyzing certified reference material of SRM1515 Apple Leaves. The procedure was performed by analyzing some spice samples.

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Combination of cloud point extraction and flame atomic absorption spectrometry for preconcentration and determination of nickel and manganese ions in water and food samples

Cited by 81 publications

References 34 publications

Overview of Green Sample Preparation Techniques in Food Analysis

Overview of Green Sample Preparation Techniques in Food Analysis

Determination of Lead, Cadmium, Copper, and Nickel in the Tonghui River of Beijing, China, by Cloud Point Extraction-High Resolution Continuum Source Graphite Furnace Atomic Absorption Spectrometry

Determination of Cu, Fe, and Ni in Spices after Preconcentration on Diaion‐HP 20 Resin as Their Zincon Complexes

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