Multielemental analysis in vegetable edible oils by inductively coupled plasma mass spectrometry after solubilisation with tetramethylammonium hydroxide

Savio, Marianela; Ortiz, María S.; Almeida, César Américo; Olsina, Roberto A.; Martínez, Luis D.; Gil, Raúl A.

doi:10.1016/j.foodchem.2014.03.041

Cited by 44 publications

(29 citation statements)

References 36 publications

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“…Significant difference between different sets of data from different regions was defined as p < 0.05 (Zhao et al, 2011(Zhao et al, , 2013. Principal component analysis (PCA) is a method for linear data analysis and is known for its capability to reduce the dimensionality of the data (Kropf et al, 2010;Savio et al, 2014). Unsupervised classification was performed with cluster analysis (CA) to measure the similarity between samples (Kropf et al, 2010;Yudthavorasit, Wongravee, & Leepipatpiboon, 2014).…”

Section: Discussionmentioning

confidence: 99%

Determining the geographical origin of Chinese green tea by linear discriminant analysis of trace metals and rare earth elements: Taking Dongting Biluochun as an example

et al. 2016

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Section: Discussionmentioning

confidence: 99%

Determining the geographical origin of Chinese green tea by linear discriminant analysis of trace metals and rare earth elements: Taking Dongting Biluochun as an example

et al. 2016

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“…Oils were prepared for ICP-MS using a method as described in Sabio (Savio et al, 2014). Approximately 500 mg of oils were weighed directly into microwave digestion vessels, followed by addition of nitric acid (5.0 mL).…”

Section: Metal Concentration Measurementmentioning

confidence: 99%

Influence of iron solubility and charged surface-active compounds on lipid oxidation in fatty acid ethyl esters containing association colloids

et al. 2016

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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: 91%

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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Multielemental analysis in vegetable edible oils by inductively coupled plasma mass spectrometry after solubilisation with tetramethylammonium hydroxide

Cited by 44 publications

References 36 publications

Determining the geographical origin of Chinese green tea by linear discriminant analysis of trace metals and rare earth elements: Taking Dongting Biluochun as an example

Determining the geographical origin of Chinese green tea by linear discriminant analysis of trace metals and rare earth elements: Taking Dongting Biluochun as an example

Influence of iron solubility and charged surface-active compounds on lipid oxidation in fatty acid ethyl esters containing association colloids

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

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