Levels of Major and Minor Elements in Some Commercial Fruit Juices Available in Serbia

The content of some biometals (Fe, K, Mg, Zn, and Mn), and two heavy metals (Pb and Cd) in nettle (Urtica dioica L.) and in the respective soils were determined by ICP-oES. The samples were collected from two locations in the vicinity of Niš and one from western Serbia. The amount of vitamin C in the samples was determined by iodometric titration. The aim of the study was to determine the percentage of fulfilling the daily needs for tested biometals and vitamin C by consuming nettle as tea or as vegetable, as well as to determine the amount of biometals that plants absorb from the soil. The obtained amount of Fe, K, Mg, Zn, Mn and vitamin C suggested that nettle can be used as an additional remedy in the treatment of anemia, and to alleviate the effects due to the lack of biometals. Some biometals were absorbed to certain saturation and some for as long as they were present in the soil.

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“…HNo 3/conc. HCl (1:2, v:v) added in portions (t = 80 °C) and finally standardized for ICP-oES analysis [21,22,23].…”

Section: Sample Preparationmentioning

confidence: 99%

Biometal and heavy metal content in the soil-nettle (Urtica dioica L.): System from different localities in Serbia

Dimitrijević¹,

Krstić²,

Stanković³

et al. 2016

Adv techn

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“…Among the different spectroscopic techniques that are used for the elemental analysis of food samples are flame atomic absorption spectrometry (FAAS), electrothermal atomic absorption spectroscopy (ETAAS), cold vapor atomic absorption spectroscopy (CV-AAS), inductively coupled plasma-atomic emission spectrometry (ICP-AES) and inductively coupled plasma-mass spectrometry (ICP-MS) [1,8,9]. Until now, ICP-AES has been found to be a powerful analytical instrument for the assessment of the elemental composition of a wide variety of food and beverages samples, including fruits and vegetables [10], legumes [11], savory snack products [8], coffee [12], alcoholic drinks [13], milks [12], vegan milks and oils [14], rice [15,16], cereals [16], nuts and seeds [17], fruit juices [18], seaweeds [19,20], etc.…”

Section: Introductionmentioning

confidence: 99%

Development and Validation of an ICP-AES Method for the Determination of Toxic and Nutrient Metals in Candies: Application for the Analysis of Different Samples from the Greek Market

Manousi

Zachariadis

2021

Applied Sciences

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In this study, we present the development and validation of an inductively coupled plasma-atomic emission spectrometric (ICP-AES) method for the determination of Ag, Ba, Bi, Ca, Cd, Co, Cr, Cu, Fe, Mg, Mn, Ni, Pb and Zn in different candies. Various wet digestion protocols were examined in order to ensure minimum consumption of chemicals and sample preparation time. Under optimized conditions, less than 10 min were required for complete sample decomposition. The ICP-AES method was validated in terms of linearity, accuracy, precision, limits of detection (LODs) and limits of quantification (LOQs). The relative recoveries for the proposed method ranged between 80.0% and 119.0%, while the relative standard deviation values were lower than 9.0%, indicating good method accuracy and precision, respectively. The LODs for the examined analytes were 0.04–2.25 mg kg−1. Finally, the proposed method was successfully employed for the analysis of hard candies, jellies and lollipops that are sold in the Greek market, which are highly likely to be consumed by children.

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“…These substances alter the physical characteristics of the samples, leading to the occurrence of strong transport and nebulization interferences. In order to minimize such interferences, most of the published works proposes the application of wet acid digestion [ 5 , 7 , 14 , 16 , 20 ] or dry ashing [ 12 , 13 ] approaches to mineralize the carbon present in the samples and simplify their matrices.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Copper and Manganese Concentrations in Commercial Fruit Juices and Nectars Consumed in Brazil by GF AAS

Rocha

Cruz

Cassella

2020

Journal of Analytical Methods in Chemistry

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The present work proposes a simple method for direct determination of Cu and Mn in commercial fruit juices and nectars by graphite furnace atomic absorption spectrometry (GF AAS). We analyzed samples of different flavors (orange, mango, passion fruit, peach, and grape) and brands of Brazilian commercial fruit juices and nectars. We also carried out a study to define a suitable temperature program and to optimize the calibration conditions. It was possible to determine Cu and Mn in the samples just after a simple dilution of samples with a 0.70 mol L−1 HNO3 solution, except in the case of grape juice. We compared the results obtained with the proposed method to those obtained after a traditional treatment based on acid digestion in a microwave oven, and no significant differences were observed (except for grape juice). The accuracy of the method was assessed through a recovery test, which provided recovery percentages in the range of 81–117%. Precision was always better than 8%, and the limits of quantification for Cu and Mn were 6 μg L−1 and 9 μg L−1, respectively. We analyzed twenty-two samples, and the concentrations of Cu and Mn were in the range of 24.1–321 μg L−1 and 116–3296 μg L−1, respectively. Statistical analysis using a two-way analysis of variance (ANOVA) at 95% confidence level showed that flavor and brand impacted on the concentration of the analytes in the samples. Among the samples analyzed, the grape juice presented the highest concentrations of both Cu and Mn.

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Levels of Major and Minor Elements in Some Commercial Fruit Juices Available in Serbia

Cited by 6 publications

References 18 publications

Biometal and heavy metal content in the soil-nettle (Urtica dioica L.): System from different localities in Serbia

Biometal and heavy metal content in the soil-nettle (Urtica dioica L.): System from different localities in Serbia

Development and Validation of an ICP-AES Method for the Determination of Toxic and Nutrient Metals in Candies: Application for the Analysis of Different Samples from the Greek Market

Evaluation of Copper and Manganese Concentrations in Commercial Fruit Juices and Nectars Consumed in Brazil by GF AAS

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