scholarly journals Assessment of essential elements and chemical contaminants in thirteen fish species from the Bay Aratu, Bahia, Brasil

2016 ◽  
Vol 76 (4) ◽  
pp. 871-877 ◽  
Author(s):  
E. Silva ◽  
Z. C. V. Viana ◽  
N. F. A. Souza ◽  
M. G. A. Korn ◽  
V. L. C. S. Santos
Keyword(s):  
Fish Species ◽  
Inductively Coupled Plasma ◽  
Certified Reference Materials ◽  
Principal Component ◽  
Optical Emission ◽  
Hierarchical Cluster ◽  
Essential Elements ◽  
Emission Spectrometry ◽  
Oyster Tissue ◽  
National Agency

Abstract Concentrations of ten elements (Cd, Cr, Cu, Fe, Ni, Pb, Se, Sr, V and Zn) were determinate in muscle tissues of 13 fish species from Aratu Bay, Bahia, Brazil by inductively coupled plasma optical emission spectrometry. The accuracy and precision of our results were checked by using two certified reference materials: BCR-422 cod muscle and SRM 1566b oyster tissue. The average trace element concentrations in the fish species varied in the following ranges, in μg g–1: 0.03-0.8 for Cr; 2.0-33.7 for Cu, 2.4-135.1 for Fe, 1.6-25.6 for Se; 1.6-35.1 for Sr; and 2.8-40.5 for Zn. The Diaptereus rhombeus (carapeba) specie presented the highest concentrations of Se, Cu and Fe. Chromium and Se were present at levels above the limit of tolerance allowed by the National Agency of Sanitary Vigilance (ANVISA). The results were also evaluated using the multivariate analysis techniques: principal component analysis (PCA) and hierarchical cluster analysis (HCA).

scholarly journals Mineral Composition of Herbaceous Species Seseli rigidum and Seseli pallasii: a Chemometric Approach

2021 ◽  
Vol 68 (3) ◽  
pp. 709-717
Author(s):  
Marija D. Ilić ◽  
Violeta D. Mitić ◽  
Snežana B. Tošić ◽  
Aleksandra N. Pavlović ◽  
Marija S. Marković ◽  
...  
Keyword(s):  
Mineral Composition ◽  
Inductively Coupled Plasma ◽  
Principal Component ◽  
Optical Emission ◽  
Hierarchical Cluster ◽  
Balkan Peninsula ◽  
Emission Spectrometry ◽  
Medicinal Species ◽  
Multivariate Statistic ◽  
Pharmaceutical Industries

Nutrients play an essential role in many metabolic processes whose deficiency or excess can be harmful to the plant itself and through the food chain to both animals and humans. Medicinal plants used in the food and pharmaceutical industries can be contaminated with increased concentrations of heavy metals. The plant species Seseli rigidum and Seseli pallasii from the Balkan Peninsula are used in traditional medicine and spices in the diet, so it was necessary to determine the mineral composition to ensure their safe application. In this work, the mineral composition was determined in medicinal species of the genus Seseli using inductively coupled plasma with optical emission spectrometry (ICP-OES). Two multivariate statistic methods –principal component analysis (PCA) and hierarchical cluster analysis (HCA) were applied to distinguish samples regarding their mineral composition. The mineral composition of both studied species is following the literature data. The results obtained using multivariate statistics methods agree and distinguish certain parts of the tested plants based on the highest content of micro, macro, or trace elements.

Metals in Mytillus galloprovincialis (Lamarck 1819) and Ensis directus (Conrad 1883): Risk Assessment

2018 ◽  
Vol 81 (10) ◽  
pp. 1622-1626 ◽  
Author(s):  
ENRIQUE LOZANO-BILBAO ◽  
SONGLIAN MÉNDEZ ◽  
GONZALO LOZANO ◽  
ARTURO HARDISSON ◽  
DAILOS GONZÁLEZ-WELLER ◽  
...  
Keyword(s):  
Inductively Coupled Plasma ◽  
Optical Emission ◽  
Essential Elements ◽  
Emission Spectrometry ◽  
Human Consumption ◽  
Toxic Heavy Metals ◽  
Inductively Coupled ◽  
Mediterranean Mussel ◽  
Plasma Optical Emission Spectrometry ◽  
Daily Intakes

ABSTRACT The study has been conducted with inductively coupled plasma optical emission spectrometry to determine the content of toxic heavy metals, macroelements, and essential elements in two species of bivalves of commercial interest in the Canary Islands: the Mediterranean mussel (Mytillus galloprovincialis, Lamarck 1819) and the razor clam (Ensis directus, Conrad 1883). The study included 40 samples corresponding to 20 specimens of each species acquired from fishmongers on the island of Tenerife. E. directus had higher levels of metals, except for B, Cd, Na, and Zn (0.98, 0.02, 2,006.93, and 15.07 mg/kg, respectively) compared with those in M. galloprovincialis, B, Cd, Na, and Zn (2.67, 0.12, 2,267.7, and 22.27 mg/kg, respectively). In both bivalve molluscs, the maximum limits established by European legislation on food for human consumption were not exceeded. Likewise, the estimated daily intakes for the toxic metals Pb and Cd were below the admissible daily intakes.

scholarly journals ICP/XRF Analysis for Trace Elements in Soil Samples from Gezira and Suki Schemes, Sudan

2021 ◽  
Vol 9 (02) ◽  
pp. 32-39
Author(s):  
Marwa M Adam ◽  
Mustafa M Osman ◽  
Ahmed Salih Elhag ◽  
Mohamed A Elsheikh
Keyword(s):  
Inductively Coupled Plasma ◽  
Optical Emission ◽  
Hierarchical Cluster ◽  
Soil Samples ◽  
Emission Spectrometry ◽  
Inductively Coupled ◽  
Elemental Concentrations ◽  
Accuracy Of Measurements ◽  
Significant Difference ◽  
Plasma Optical Emission Spectrometry

In the present study, soil samples have been collected from two different agriculture areas: Gezira and Suki schemes in Sudan, The elemental concentrations for Cr, Ni, Cu, Zn, and Pb have been determined using Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES) and X-ray Fluorescence spectrometry (XRF). The accuracy of measurements has been investigated by using ISE (PT) 1&4 and fortified samples for ICP, IAEA-Soil-7 XRF, respectively. A good agreement was found between certified and measured values. The average elemental concentrations by ICP of these elements Cr, Ni, Cu, Zn, and Pb in loc1 were found as follows: 84.7, 48.15, 33.5, 65.43, and 12.57 ppm, respectively. While the results obtained in loc2 were found as follows: 105, 65.1, 41.3, 55.4, and 12.74 ppm, respectively. The average elemental concentrations by XRF of these elements Cr, Ni, Cu, Zn, and Pb in loc1 were found as follows: 77.21, 43.72, 27.62, 86.96, and 18.74 ppm, respectively. While the results obtained in loc2 were found as follows: 123.33, 57.41, 35.99, 98.85, and 16.43 ppm, respectively. A statistical test (t-test) was applied to the data of both methods without any significant difference between the two techniques. The results obtained were compared to WHO permissible limits. Correlations between different elements were performed. Hierarchical cluster analysis was done for the data. The average elemental concentrations were calculated and compared with data from the literature. 

scholarly journals Mineral Constituents Profiling of Ready-To-Drink Nutritional Supplements by Inductively Coupled Plasma Optical Emission Spectrometry

Molecules ◽  
2020 ◽  
Vol 25 (4) ◽  
pp. 851
Author(s):  
Anna Leśniewicz ◽  
Daniela Kurowska ◽  
Paweł Pohl
Keyword(s):  
Inductively Coupled Plasma ◽  
Optical Emission ◽  
Essential Elements ◽  
Emission Spectrometry ◽  
Health Issues ◽  
Element Analysis ◽  
Inductively Coupled ◽  
Freeze Dried ◽  
Positive Correlations ◽  
Mineral Constituents

Nutritional drinks (NDs) are medicinal food products intended for people with different health issues constricting nutrients provision. Eight varieties of milkshake style NDs were analyzed in this work. Prior to element analysis, they were freeze-dried, and concentrations of twenty macro- and microelements in analyzed samples were simultaneously measured by ICP-OES after their mineralization in a closed-vessel microwave-assisted digestion system. Results of this analysis indicated that these NDs must be considered as nutrient-dense foods, taking into account mineral constituents. Consumption of two bottles of such NDs per day provides very a high amount or even an excess of human daily requirements set as Recommended Dietary Allowances (RDAs). Generally, concentrations of determined elements in examined NDs were consistent with data given on the labels—most of differences did not exceed 30% (median: −5.91%, standard deviation: 14%). Discovered very strong and moderate positive correlations between concentrations of major and essential elements (Ca, Mg, P, Cu, Fe, Mn, Zn) were likely due to their incorporation into formulations of analyzed NDs. However, relationships between contents of trace elements were the result of concomitance of these elements in substrates used for examined products production or contamination of substrates.

Characterization of Pottery from Teotihuacan Using Laser-Induced Breakdown Spectroscopy and Inductively Coupled Plasma Optical Emission Spectroscopy

2021 ◽  
pp. 000370282199193
Author(s):  
Hugo Sobral ◽  
Mitzi Amador-Mejía ◽  
Ciro Márquez-Herrera
Keyword(s):  
Elemental Composition ◽  
Inductively Coupled Plasma ◽  
Principal Component ◽  
Optical Emission ◽  
Emission Spectrometry ◽  
Laser Induced Breakdown Spectroscopy ◽  
Icp Oes ◽  
Inductively Coupled ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown

Pottery sherds from Teotihuacan, Mexico, belonging to the Formative and Classic periods (150 BCE–700 CE) were investigated using laser-induced breakdown spectroscopy (LIBS) and inductively coupled plasma optical emission spectrometry (ICP-OES). LIBS results show that most of the investigated samples have primarily the same elemental composition. Nevertheless, there are also a few sherds that could be associated to foreign ceramic groups with characteristic concentrations of Na, K, Ca, Mn, Rb, and Sr. The relative elemental composition of red pigments applied on ceramic bodies was also analyzed through a LIBS depth profiling. Diverse hematite-based pigments were distinguished according to the detected iron content. Hematite was also combined with red soils with a high relative content of Mn, Sr, Ba, or Ti. The ICP-OES analysis of ceramic pastes is consistent with the emission intensities obtained using LIBS. Principal component analysis indicates that all samples identified as locals belong to a single chemical group. Moreover, locally made ceramics and the analyzed clays from the nearby area have the same elemental composition, which appears clearly differentiated from imported samples.

scholarly journals ICP-MS Assessment of Essential and Toxic Trace Elements in Foodstuffs with Different Geographic Origins Available in Romanian Supermarkets

Molecules ◽  
2021 ◽  
Vol 26 (23) ◽  
pp. 7081
Author(s):  
Cezara Voica ◽  
Constantin Nechita ◽  
Andreea Maria Iordache ◽  
Carmen Roba ◽  
Ramona Zgavarogea ◽  
...  
Keyword(s):  
Trace Elements ◽  
Inductively Coupled Plasma ◽  
Hazard Quotient ◽  
Risk Index ◽  
Daily Intake ◽  
Principal Component ◽  
Hierarchical Cluster ◽  
Essential Elements ◽  
Target Hazard Quotient ◽  
Toxic Trace Elements

The present study was conducted to quantify the daily intake and target hazard quotient of four essential elements, namely, chromium, cobalt, nickel, and copper, and four toxic trace elements, mercury, cadmium, lead, and arsenic. Thirty food items were assigned to five food categories (seeds, leaves, powders, beans, and fruits) and analyzed using inductively coupled plasma-mass spectrometry. Factor analysis after principal component extraction revealed common metal patterns in all foodstuffs, and using hierarchical cluster analysis, an association map was created to illustrate their similarity. The results indicate that the internationally recommended dietary allowance was exceeded for Cu and Cr in 27 and 29 foodstuffs, respectively. According to the tolerable upper level for Ni and Cu, everyday consumption of these elements through repeated consumption of seeds (fennel, opium poppy, and cannabis) and fruits (almond) can have adverse health effects. Moreover, a robust correlation between Cu and As (p < 0.001) was established when all samples were analyzed. Principal component analysis (PCA) demonstrated an association between Pb, As, Co, and Ni in one group and Cr, Cu, Hg, and Cd in a second group, comprising 56.85% of the total variance. For all elements investigated, the cancer risk index was within safe limits, highlighting that lifetime consumption does not increase the risk of carcinogens.

scholarly journals Differences in macro- and microelement contents in milk and yoghurt

2015 ◽  
Vol 67 (4) ◽  
pp. 1391-1397 ◽  
Author(s):  
Nina Bilandzic ◽  
Marija Sedak ◽  
Maja Djokic ◽  
Djurdjica Bozic ◽  
Bozica Solomun-Kolanovic ◽  
...  
Keyword(s):  
Inductively Coupled Plasma ◽  
Optical Emission ◽  
Essential Elements ◽  
Optical Emission Spectrometry ◽  
Emission Spectrometry ◽  
Analytical Technique ◽  
Inductively Coupled ◽  
Element Concentrations ◽  
Plasma Optical Emission Spectrometry

The aim of this study was to determine the concentration of macroelements (Ca, Na, K, Mg) and essential elements (Zn, Fe, Se, Cu) in milk and yoghurt collected from the Croatian market. Inductively coupled plasma-optical emission spectrometry was used as an analytical technique. Mean concentrations measured in milk and yoghurt were (mg/kg): Ca 1406.9 and 1153.8, K 1995.5 and 1526.5, Na 608.3 and 519.2, Mg 136.4 and 108.0, Zn 3.92 and 3.48, Fe 0.332 and 0.231, Cu 0.005 and 0.124. Significantly higher concentrations of Ca, K, Na and Cu (p<0.01-p<0.001) were found in milk than in yoghurt. The element concentrations measured in milk, with the exception of higher K and Na levels, were in agreement with the literature data. Variations in the content of all elements in yoghurt were found in comparison to data from other countries. These results represent the first data on macro- and microelements from the Croatian market. The variations found in comparison to other countries suggest that unique processes are utilized in the production of yoghurt products.

scholarly journals Chlorine determination in medicinal plants by potentiometry with ion-selective electrode after microwave-induced combustion

2021 ◽  
Vol 5 (1) ◽  
pp. 19-25
Author(s):  
Mariele Samuel Nascimento ◽  
Gabriel Toneto Druzian ◽  
Rochele Sogari Picoloto ◽  
Paola Azevedo Mello ◽  
Erico M. M. Flores
Keyword(s):  
Medicinal Plants ◽  
Inductively Coupled Plasma ◽  
Certified Reference Materials ◽  
Optical Emission ◽  
Ion Selective Electrode ◽  
Emission Spectrometry ◽  
Selective Electrode ◽  
Complete Combustion ◽  
Inductively Coupled ◽  
Relative Standard

A method based on microwave-induced combustion (MIC) was applied for medicinal plants digestion allowing further chlorine determination by potentiometry using ion-selective electrode (ISE). Sample masses ranging from 500 to 1000 mg were evaluated for MIC digestion. Water and 10, 25, 50, and 100 mmol/L NH4OH were investigated as absorbing solutions. The accuracy of the proposed method was evaluated by using certified reference materials (CRMs), by recovery tests (500 µg/g), and also by comparison with the results obtained by inductively coupled plasma optical emission spectrometry (ICP-OES) after microwave-assisted alkaline extraction (MAE). Using water or NH4OH solutions (10 to 100 mmol/L), recoveries close to 100% and relative standard deviation lower than 5% were obtained. Results were in agreement with CRMs values (better than 95%) and also with those values obtained by using the MAE method. The main advantage of the proposed method was the complete combustion of high sample mass (1000 mg) resulting in low quantification limit (12.5 µg/g) and chlorine determination at low concentration by ISE. Another advantage of the proposed method was the high chlorine stability in digests (up to 30 days of storage) even using water as absorbing solution, which is in agreement with green analytical chemistry recommendations. Finally, the proposed MIC method was applied for commercial medicinal plants and the chlorine concentration was in the range of 59.4 ± 1.4 to 2038 ± 70 µg/g. The proposed MIC method was considered suitable for quality control for chlorine determination in medicinal plants.

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