Search Results - "de Jesus, Raildo M"
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Altered physiology, cell structure, and gene expression of Theobroma cacao seedlings subjected to Cu toxicity
Published in Environmental science and pollution research international (2014)“…Seedlings of Theobroma cacao CCN 51 genotype were grown under greenhouse conditions and exposed to increasing concentrations of Cu (0.005, 1, 2, 4, 8, 16, and…”
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Use of slurry sampling for the direct determination of zinc in yogurt by high resolution-continuum source flame atomic absorption spectrometry
Published in Talanta (Oxford) (15-06-2010)“…This paper presents an analytical procedure for the direct determination of zinc in yogurt employing sampling slurry and high resolution-continuum source flame…”
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3
Assessment of water resources pollution associated with mining activity in a semi-arid region
Published in Journal of environmental management (01-11-2020)“…Mining, although relevant and indispensable for human socioeconomic development, is considered one of the most polluting anthropogenic activities. Water…”
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4
Microwave-assisted digestion using diluted HNO3 and H2O2 for macro and microelements determination in guarana samples by ICP OES
Published in Food chemistry (01-02-2019)“…[Display omitted] •A microwave-assisted digestion procedure using diluted HNO3 and H2O2 was developed for guarana sample preparation.•Nutrient elements K, Mg,…”
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5
Multi-element determination in chocolate bars by microwave-induced plasma optical emission spectrometry
Published in Food chemistry (30-07-2021)“…•The application of MIP OES method for multi-element determination in chocolate bars was demonstrated.•Some samples showed high concentrations of Ni and…”
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History, dissemination, and field control strategies of cocoa witches’ broom
Published in Plant pathology (01-12-2021)“…The world demand for cocoa beans has increased, but the spread of fungal diseases of the cocoa tree (Theobroma cacao) has become an obstacle. Witches’ broom is…”
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Development of Simple Method for Multi-elemental Determination of Inorganic Elements in Handmade Chocolate Employing Extraction Induced by Emulsion Breaking and MIP OES
Published in Food analytical methods (01-11-2024)“…The objective of this work was the multi-element determination of Ca, Zn, Sr, Ba, Cu, Mn, Mg, and Cr in handmade chocolate samples after extraction induced by…”
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Development of a Simple and Fast Procedure Based on Acid Dilution for Determination of Macro and Microelements in Guarana-Based Beverages by ICP OES
Published in Journal of the Brazilian Chemical Society (01-07-2021)“…A simple analytical procedure is proposed for the direct analysis of guarana-based beverages in order to determine nutrient elements by inductively coupled…”
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10
Concentration of Metals in Plant Litter Produced in Regions of Caatinga in Southwest Bahia, Brazil
Published in Journal of the Brazilian Chemical Society (01-07-2020)“…Plant litter has several functions in a forest ecosystem. Studies about plant litter are of great importance to better understand and conserve ecological…”
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11
Mineral Nutrients and Plant-Fungal Interaction in Cocoa Trees (Theobroma cacao L.)
Published in Journal of the Brazilian Chemical Society (01-02-2021)“…An infection of the fungus Moniliophthora perniciosa in cocoa trees reduces productivity of the plant. In this study, the concentrations of mineral nutrients…”
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12
Determination of mercury in phosphate fertilizers by cold vapor atomic absorption spectrometry
Published in Talanta (Oxford) (15-03-2013)“…In this paper, a method for the determination of mercury in phosphate fertilizers using slurry sampling and cold vapor atomic absorption spectrometry (CV QT…”
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13
Application of Mixture Design Using Diluted Acid for Extraction of Inorganic Components in Fruits of Casearia fasciculata and Determination by ICP OES: Evaluation by PCA and HCA
Published in Journal of the Brazilian Chemical Society (01-06-2020)“…This study is the first to propose the simultaneous quantification of 10 elements in fruits of Casearia fasciculata by inductively coupled plasma optical…”
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14
Morphophysiological, ultrastructural, and nutritional changes induced by Cu toxicity in young Erythrina fusca plants
Published in International journal of phytoremediation (03-07-2017)“…Erythrina fusca is an important legume used for shade cover in cacao plantations in Brazil. Cacao plantations receive large quantities of copper…”
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15
Determination of total arsenic and arsenic (III) in phosphate fertilizers and phosphate rocks by HG-AAS after multivariate optimization based on Box-Behnken design
Published in Talanta (Oxford) (15-12-2009)“…In the present paper, a procedure for the determination of total arsenic and arsenic (III) in phosphate fertilizers and phosphate rocks by slurry sampling (SS)…”
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16
Determination and Evaluation of the Mineral Composition of Obi (Cola acuminate)
Published in Biological trace element research (01-10-2011)“…The obi ( Cola acuminate ) is a native fruit from Africa, which has been mainly used in the production of soft drinks and also in rituals of African religions…”
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Use of hexamethyldisilazane as a silanizing agent in microwave-assisted derivatization for determining phenolic compounds in wine by gas chromatography
Published in Microchemical journal (01-02-2021)“…•Hexamethyldisilazane was used as silanizing agent for GC determinations.•Microwave radiation was used to promote the derivatization reaction.•A low cost…”
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Optimization of chromatographic separation and classification of artisanal and fine chocolate based on its bioactive compound content through multivariate statistical techniques
Published in Microchemical journal (01-01-2020)“…•The chromatographic parameters were simultaneously optimized.•PCA and HCA were applied in the classification of artisanal and fine chocolates.•Bioactive…”
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19
Development of an analytical approach for determination of total arsenic and arsenic (III) in airborne particulate matter by slurry sampling and HG-FAAS
Published in Microchemical journal (01-09-2010)“…Slurry sampling (SS) with hydride generation atomic absorption spectrometry (HG-AAS) was used to analyze 3 particulate matter samples collected in the…”
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20
Microwave-assisted digestion using diluted HNO 3 and H 2 O 2 for macro and microelements determination in guarana samples by ICP OES
Published in Food chemistry (01-02-2019)“…A microwave-assisted digestion procedure using diluted HNO and H O was developed for multi-element determination in guarana samples by ICP OES. Optimization…”
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