Extraction of nickel from edible oils with a complexing agent prior to determination by FAAS

Tokay, Feyzullah; Bağdat, Sema

doi:10.1016/j.foodchem.2015.11.001

Cited by 23 publications

(9 citation statements)

References 32 publications

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“…Furthermore, considering the techniques including graphite furnace atomic absorption spectrometry (GFAAS), inductively coupled optical mass spectrometry (ICP-MS), inductively coupled optical atomic emission spectrometry (ICP-AES), high resolution continuum source flame atomic absorption spectrometry (HR-CS FAAS), determination of the analyte can be achieved cheaper by this analytical procedure. The sensitivity of the suggested method can be found worse than some of the reports [4,17,18,19]. However, considering dilution of the sample, time consuming sample preparation step and high cost instrument requirement in these procedures, the presented method comes to the forefront.…”

Section: Discussionmentioning

confidence: 90%

Development of UV-Vis Spectrophotometric Method for Rapid Nickel Determination in Original Oil Matrix

Tokay¹

2017

SDÜ Fen Bil Enst Der

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A novel method for the determination of nickel in edible oils was proposed. The suggested procedure was on the basis of complexation of N, N'-bis(4-methoxysalicylidene) ethylenediamine and nickel in oily media and UVVisible spectrophotometric determination at 396 nm. The complex formation was completed within 20 seconds. The mixture of n-hexane and acetone (1:4, v/v) was used as solvent and the molar absorptivity of the complex was calculated as 6540 L mol -1 cm -1 . The limits of detection and quantification were 0.24 and 0.82 µg g -1 , respectively. The calibration graph was linear between 0.25-1.50 mg L -1 nickel concentration with 0.9995 correlation coefficient. The reliability of the suggested method was tested by analysis of organometallic nickel standard and the recovery and relative standard deviation were found as 97.0 % and 3.8 %, respectively. Furthermore, the developed method was successfully applied on nickel spiked real samples and recovery values were between 90.0 -104.0 %. Orijinal Yağ Matriksinde Hızlı Nikel Tayini için UV-Vis Spektrofotometrik Metot Geliştirilmesi Anahtar KelimelerYenilebilir yağlar, Nikel tayini, UV-Vis spektrofotometri Özet: Bu çalışmada, yenilebilir yağlarda nikel tayini için yeni bir metot sunulmuştur. Önerilen prosedür, N, N'-bis(4-metoksisalisiliden) etilendiamin ve nikelin yağ ortamında kompleksleşmesi ve 396 nm'de UV-görünür bölgede spektrofotometrik tayinine dayanmaktadır. Kompleks oluşumu 20 saniyede tamamlanmaktadır. n-Hekzan ve aseton karışımı (1:4, h/h) çözücü olarak kullanılmış ve kompleksin molar absorpsiyon katsayısı 6540 L mol -1 cm -1 olarak hesaplanmıştır. Tayin ve gözlenebilme sınırları sırasıyla 0,24 ve 0,82 µg g -1 olarak bulunmuştır. Kalibrasyon grafiği 0,25-1,50 mg L -1 nikel derişimi aralığında doğrusaldır ve korelasyon katsayısı 0,9995'dir. Önerilen yöntemin gerçekliği organometalik nikel standardı kullanılarak test edilmiş; % geri kazanım ve % bağıl standart sapma değerleri sırasıyla % 97,0 ve % 3,8 olarak bulunmuştur. Ayrıca, geliştirilen yöntem nikel katılmış gerçek örneklerde de başarıyla uygulanmış ve % geri kazanım değerleri %90,0 -104,0 aralığında bulunmuştur.

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Section: Discussionmentioning

confidence: 90%

Development of UV-Vis Spectrophotometric Method for Rapid Nickel Determination in Original Oil Matrix

Tokay¹

2017

SDÜ Fen Bil Enst Der

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“…Absorbance of Ni‐4MSHP and Zn‐4MSHP was scanned at 10 s intervals for 60 min at 266 and 268 nm, respectively, to check the stability of complexes. Job's method and the mole ratio method were applied for the determination of metal:ligand ratio of complexes (Köse Baran & Bağdat Yaşar, ; Tokay & Bağdat, ). In addition, complex formation constants were calculated using the multicomponent analysis method (Perkampus, ).…”

Section: Methodsmentioning

confidence: 99%

“…The strategy comes to the forefront with speed and ease of application. In addition, LLE provides reduced reagent consumption, usage of nontoxic substances, and high analyte recovery rates as advantages (Köse Baran & Bağdat Yaşar, , ; Tokay & Bağdat, , ).…”

Section: Introductionmentioning

confidence: 99%

Determination of Ni and Zn in an Oil Matrix using Schiff Base‐Assisted Extraction Followed by a Flame Atomic Absorption Spectrometer: A Simple Strategy to Determine Ni and Zn

Karan

Tokay

Bağdat

2018

J Americ Oil Chem Soc

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In the present work, a new and simple Schiff base‐assisted extraction strategy for Ni and Zn from an edible oil matrix with subsequent determination using a flame atomic absorption spectrometer was suggested. According to the green approach, laborious sample‐pretreatment procedures were eliminated via complexation of the analytes with N,N′‐bis(4‐methoxysalycylidene)‐2‐hydroxy‐1,3‐propanediamine (4MSHP) and transferred from the oil phase to the aqueous phase. The complexation properties of 4MSHP, Ni, and Zn were investigated using UV–vis spectrophotometry. The experimental conditions that affect the extraction efficiency were optimized using central composite design. The optimum conditions for the extraction of Ni and Zn were as follows: a volume to oil mass ratio of 0.83 to 1.31 mL g−1 of 4MSHP solution; 62.3‐ and 50.6‐min, stirring time; 27.3 and 31.1 °C, temperature, respectively. The detection limits (3sbm−1) were 0.41 μg g−1 for Ni and 0.16 μg g−1 for Zn. Validation of the suggested work was performed by the analysis of organometallic standard‐doped n‐hexane solutions as certified reference materials under the optimum experimental conditions. The recovery percentages were warranted the accuracy and found as 98.2 ± 1.8% for Ni and 99.8 ± 1.2% for Zn. In addition, relative SD values were below 5% for both the analytes. The Student's t‐test showed that there was no significant difference between the found and doped amount of analytes at 95% confidence level. The features such as the detection technique, cheapness, eco‐friendly solvent usage, and practicality were better compared to the literature.

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“…It was revealed that the nickel (Ni) was a nutritional element needed for the growth and development of plants since 1987 [14,15]. The need for nickel in plants is necessary in the germination period of the seed.…”

Section: Introductionmentioning

confidence: 99%

“…The need for nickel in plants is necessary in the germination period of the seed. In addition, nickel is a metal part of urease enzyme and many hydrogenase enzymes, which is a catalase enzyme that converts urea to ammonium and carbon dioxide [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

INVESTIGATION OF Pb AND Ni LEVELS IN SUNFLOWER PLANT AGRICULTURE TWO DIFFERENT PH ENVIRONMENTS

Torlak

Özcan

2020

Kırklareli Üniversitesi Mühendislik Ve Fen Bilimleri Dergisi

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In this study, in the soil samples collected from farmland with two different pH environments located in Kırklareli Province, heavy metals (Pb and Ni) were aimed to investigate the relationship. The working pH values are took in 3 different periods (after the formation of the plant, week of 1 and 6, harvest time) from the farm land in the town of Kırklareli and Kavaklı. In order to determine the concentration of Pb and Ni metals, the reading process was performed by the Flame Atomic Absorption Spectrophotometer (FAAS). The concentrations of Pb and Ni metals in soils in the first region were 36.3-43.7 mg/kg and 12.6-14.9 mg/kg, in the second region soil concentrations were 11.7-17.1 mg/kg, 0.09-0.24 mg/kg, 3.12-4.353 mg/kg, 7.89-11.2 mg/kg, 56.3-9.54 mg/kg, respectively. The concentrations of Pb and Ni metals in first region plant components were 1.93-12.1 mg/kg, and 0.56-11.8 mg/kg, the second region was 6.92-14.8 mg/kg and 0.58-9.37 mg/kg, respectively. The relative standard deviation (RSD) was found to be less than 10%. The RSD of analysis of samples have satisfying precision.

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Extraction of nickel from edible oils with a complexing agent prior to determination by FAAS

Cited by 23 publications

References 32 publications

Development of UV-Vis Spectrophotometric Method for Rapid Nickel Determination in Original Oil Matrix

Development of UV-Vis Spectrophotometric Method for Rapid Nickel Determination in Original Oil Matrix

Determination of Ni and Zn in an Oil Matrix using Schiff Base‐Assisted Extraction Followed by a Flame Atomic Absorption Spectrometer: A Simple Strategy to Determine Ni and Zn

INVESTIGATION OF Pb AND Ni LEVELS IN SUNFLOWER PLANT AGRICULTURE TWO DIFFERENT PH ENVIRONMENTS

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