Atomic absorption spectrometric determination of eight trace metals in orange juice following hydrolytic preparation

McHard, J. A.; Winefordner, J. D.; Ting, S. V.

doi:10.1021/jf60207a035

Cited by 19 publications

(12 citation statements)

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“…A classification of the elements in descending order of the concentrations gives Mg>Ca>Mn> Fe> Cu> Zn> Ni for the major and minor elements and Mo> Cr Co> V for the trace elements. These results are consistent with a synthesis of scientific results from different authors [3,4,6,9,10,13,14,17] who obtained the ranges of concentrations of the following elements: Mg (7000µg/L -750000µg/L); Ca (140µg/L -980100µg/L), Mn (60µg/L -23000µg/L); Fe (9µg/L -179200µg/L); Ni (40µg/L -73370µg/L); Cu (ND -490µg/L); Cr (ND -2767µg/L) and Zn (40µg/L -545900µg/L) where ND means "not detected".…”

Section: Concentration Ranges Of Minerals In Commercial Juicessupporting

confidence: 92%

“…The processing of juice samples for the determination of concentrations depends on the chemical forms concerned (soluble, total, species derived from the mineral element) and the mineral elements. Different authors have used hydrostatic atomic fluorescence spectrometry [3], optical emission spectrometry with an inductively coupled plasma source [3] or mass spectrometry inductively coupled plasma source (ICP-MS) [3,4,5,6] without special treatment of samples other than dry or wet incineration for determination of chemical elements in juices. In this study, juice samples were mineralized to destroy organic matter [3] due to high viscosity and high content of dissolved solids; this made it possible to avoid non-spectral difficulties (mainly matrix effects) and spectral interferences in the spectrometric measurements.…”

Section: Choice Of Sample Mineralization and Quantification Methodsmentioning

confidence: 99%

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Quantitative Analysis of Mineral Elements in Commercial Pineapple Juices by Inductively Coupled Plasma Mass Spectrometry (ICP-MS)

Karim¹,

Gbaguidi²,

Baltrons³

et al. 2018

IJFSB

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The consumption of fruit juice in the diet has increased in recent years because it contains mineral food supplements and other essential vitamins. In this study, sugar levels and mineral nutrient concentrations were evaluated in 92 commercial pineapple juice samples from Benin and France using inductively coupled plasma mass spectrometry (ICP-MS). The analysis of the data obtained reveals three ranges of concentrations relative to major elements or macro-elements (Ca, Mg), to minor elements or micro-elements (Mn, Fe, Ni, Cu, Zn), and to trace elements (Mo, V, Co, Cr). The concentrations of macro-elements and micro-elements (expressed in µg/L) vary from 11333 to 278000 for Mg, 95200 to 788000 for Ca, 536 to 25344 for Mn, 142 to 85612 for Fe, 5 to 253 for Ni, 5 to 1256 for Cu, and from 43 to 25862 for Zn. The trace elements were found in the concentration ranges (expressed in µg/L) of: 0.23 -12.50 for Vanadium, 0.58 -17.10 for Cobalt, 1.17 -58.70 for Molybdenum and finally 4 -70.5 for Chromium. The sugar levels in the various commercial juices collected in Benin and France vary from 11.0 to 18.5 Brix with an average value of 14.0 Brix. Apart from the heterogeneous nature of the juices produced in Benin production units, mineral and sugar levels were generally in accordance with international standards such as CODEX STAN 182-1993. The transformation of pineapple into fruit juice is a credible alternative for the improvement of pineapple exports, if the marketing strategy is better adapted and the local authorities support the manufacturers of the production chain to improve the quality of juices and highlight their excellent nutritional quality.

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Section: Concentration Ranges Of Minerals In Commercial Juicessupporting

confidence: 92%

Section: Choice Of Sample Mineralization and Quantification Methodsmentioning

confidence: 99%

Quantitative Analysis of Mineral Elements in Commercial Pineapple Juices by Inductively Coupled Plasma Mass Spectrometry (ICP-MS)

Karim¹,

Gbaguidi²,

Baltrons³

et al. 2018

IJFSB

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“…These were the same brands selected for the atomic absorption study reported by the authors in a previous publication (McHard et al, 1976). These were the same brands selected for the atomic absorption study reported by the authors in a previous publication (McHard et al, 1976).…”

Section: Methodsmentioning

confidence: 99%

A comparison of trace element contents of Florida and Brazil orange juice

McHard¹,

Foulk²,

Winefordner³

1979

J. Agric. Food Chem.

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“…18 The usual methods applicable for orange juice sample preparation involve the organic matter destruction. Dry ashing in a muffle furnace, 3,5,7,8,12,13 wet digestion procedure using a hot plate, 4,10,14 or microwave-assisted oven 9,12,13,[15][16][17] have been used as orange juice sample preparation for elemental analysis. For some elements determination, such as Al, a simple filtration has been proposed.…”

Section: Etaas Icp-oes and Icp-ms Whereas Simultaneous Icp-mentioning

confidence: 99%

“…Trace metal data are potentially more useful than the major elements for identifying the history of juice and detecting adulteration. 1 Several spectrometry techniques have been used for macro and trace elements determination in orange juice: atomic absorption spectrometry with flame (FAAS), [3][4][5][6][7] hydride (HGAAS) 8,9 or electrothermal atomization (ETAAS), 10,11 inductively coupled argon plasma optical emission spectrometry (ICP-OES), 1,5,12-17 direct current argon plasma optical emission spectroscopy (DCP-OES), 5 and inductively coupled plasma mass spectrometry (ICP-MS). 1,17 FAAS methods are restricted to major elements determination in orange juice due to the poor sensitivity.…”

Section: Introductionmentioning

confidence: 99%

On-line digestion in a focused microwave-assisted oven for elements determination in orange juice by inductively coupled plasma optical emission spectrometry

Fili¹,

Oliveira²,

Oliveira³

2003

J. Braz. Chem. Soc.

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Um sistema de fluxo acoplado a um forno de microondas focalizadas foi utilizado para digestão em linha de amostras de suco de laranja para a determinação de Ca, Cu, Fe, K, Mg, Mn, Na, P e Zn por espectrometria de emissão ótica com plasma indutivamente acoplado. Uma bobina de reação de PTFE (4,0 m de comprimento e 1,6 mm de diâmetro interno) foi posicionada no interior da cavidade de vidro do forno de microondas focalizadas. Alíquotas de 500 µL de amostra e de 1000 µL de reagente (80% v/v HNO 3 ) foram misturadas em uma confluência e conduzidas para a bobina de reação utilizando ar como carregador. O desvio padrão relativo para cinco determinações da mesma amostra usando o método proposto foi inferior a 5,0%. Boas recuperações variando de 91 a 111% foram obtidas para adições de quantidades conhecidas dos elementos de interesse. Os resultados obtidos, utilizando o sistema de digestão proposto, foram concordantes a um nível de confiança de 95% com aqueles obtidos por digestão total. Com este método de digestão foi possível processar 12 amostras h -1 , minimizando contaminações, consumo de amostra e reagentes e gerando pequena quantidade de resíduos.A flow injection system coupled to focused microwave-assisted oven was used for on-line orange juice sample digestion for determination of Ca, Cu, Fe, K, Mg, Mn, Na, P, and Zn by inductively coupled plasma optical emission spectrometry. The reactor coil was a PTFE tube (4.0 m long and 1.6 mm i.d.) positioned into the commercial glass tube of the focused microwave oven. Aliquots of 500 µL of sample and 1000 µL of reagent (80% v/v HNO 3 ) were mixed in a confluence and carried out to the reactor coil by air carrier. The relative standard deviation for five replicates of sample was lower than 5.0%. Good recoveries varying from 91 to 111% were obtained for added concentrations of the interest elements. The results obtained using the proposed digestion system are in agreement with those obtained for total digestion at the 95% confidence level. With this on-line digestion system was possible to carry out 12 samples h -1 , minimizing contamination, saving consumption of samples and reagent and low residue generation.

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Atomic absorption spectrometric determination of eight trace metals in orange juice following hydrolytic preparation

Cited by 19 publications

References 1 publication

Quantitative Analysis of Mineral Elements in Commercial Pineapple Juices by Inductively Coupled Plasma Mass Spectrometry (ICP-MS)

Quantitative Analysis of Mineral Elements in Commercial Pineapple Juices by Inductively Coupled Plasma Mass Spectrometry (ICP-MS)

A comparison of trace element contents of Florida and Brazil orange juice

On-line digestion in a focused microwave-assisted oven for elements determination in orange juice by inductively coupled plasma optical emission spectrometry

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