Article
Spectroscopy
M. Bootharajan, G. V. S. Ashok Kumar, B. Sreenivasulu, R. Senthilvadivu, P. M. Garnayak, A. Pandey, A. Kelkar, D. B. Sathe, R. B. Bhatt, C. V. S. Brahmananda Rao, K. Sundararajan, V. Jayaraman, N. Sivaraman
Summary: In this study, K-edge densitometry (KED) and Energy dispersive X-ray fluorescence (EDXRF) were examined as alternative methods for determining uranium and plutonium in solutions, yielding precise results with minimal waste generation.
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
(2022)
Article
Chemistry, Analytical
Bei-Bei Wang, Xu Zhao, Li-Jian Chen, Cheng Yang, Xiu-Ping Yan
Summary: A sensitive and autofluorescence-free persistent luminescence aptasensor was developed for selective and sensitive determination of kanamycin in food samples, showing great potential for universal detection of hazardous analytes.
ANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Analytical
Buddhadev Kanrar, S. Sanjay Kumar, S. Mondal, N. L. Mishra, Sangita Dhara
Summary: A method has been developed for direct non-destructive energy dispersive X-ray fluorescence (EDXRF) determination of sulfur in solid uranium ores and intermediates. The method involves grinding solid powder samples to fine particle size, making a paste, transferring it onto Mylar films, and drying to create thin sample specimens for EDXRF measurements. The precision obtained using this methodology was within 5% and the deviation of the analytical results from the expected values of CRM was within 7%.
ANALYTICAL SCIENCES
(2021)
Article
Chemistry, Applied
Beata Zawisza, Marcin Musielak, Dalene de Beer, Elizabeth Joubert, Beata Walczak
Summary: The elemental analysis of tea using non-destructive EDXRF method revealed statistical differences in composition between rooibos and honeybush, with multivariate analysis confirming the significance. The study also provided concentration ranges for elements like calcium, potassium, and magnesium in tea samples.
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
(2021)
Article
Spectroscopy
Sanjay Kumar, Sangita Dhara
Summary: The study investigated the possibility of using energy dispersive X-ray fluorescence to determine uranium in different matrices, with results showing that the method can reduce matrix effects, does not require the addition of standard substances, and provides results close to expected values with a small relative standard deviation.
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
(2022)
Article
Multidisciplinary Sciences
Cebastien Joel Guembou Shouop, Cedric Tayou Kamkumo, Eric Jilbert Nguelem Mekongtso, Jean Felix Beyala Ateba, Maurice Ndontchueng Moyo, Augustin Simo, David Strivay
Summary: This study presents a method to recover and label unknown samples in a nuclear laboratory using Energy Dispersive X-Ray Fluorescence (EDXRF) spectrometry, which is found to be a new powerful tool that can be used in different laboratories.
Article
Chemistry, Analytical
Shirlei L. Anjos, Jorge S. Almeida, Leonardo S. G. Teixeira, Ana Cristina M. da Silva, Alane P. Santos, Antonio F. S. Queiroz, Sergio L. C. Ferreira, Silvana Mattedi
Summary: Sisal fibers are used as a natural adsorbent to extract metal elements from diesel oil samples for direct analytical measurements by EDXRF. The method is simple and suitable for the determination of metal elements in diesel oil samples.
Article
Chemistry, Analytical
Monica Mediavilla, Monica Revenga-Parra, Cristina Gutierrez-Sanchez, Lourdes Hernandez-Apaolaza, Felix Pariente, Encarnacion Lorenzo
Summary: A new fluorescent assay for total polyphenol determination based on the bioconjugate formed between laccase enzyme and carbon nanodots has been developed. The study showed that bioconjugation does not inhibit enzymatic activity and the decrease in fluorescence is mainly due to electron transfer processes.
Article
Chemistry, Analytical
Sofia Pessanha, Daniel Braga, Ana Ensina, Joao Silva, Jose Vilchez, Carlos Montenegro, Sofia Barbosa, Maria Luisa Carvalho, Antonio Dias
Summary: In this study, a methodology for non-destructive elemental determination in formalin-fixed paraffin-embedded (FFPE) human tissue samples was presented. The methodology overcame the constraints in analyzing paraffin-embedded tissues by developing an image treatment algorithm and evaluating the dark matrix composition. The results showed distinctive biomarkers for breast and colon tissues, indicating potential elemental biomarkers for carcinogenesis.
Article
Chemistry, Multidisciplinary
Lovro Sinkovic, Marijan Necemer, Barbara Pipan, Vladimir Meglic
Summary: The current study used ICP-MS and EDXRF to determine the elemental composition of legumes in Slovenia. Results showed strong correlation between the two methods, with EDXRF being cheaper and simpler for certain elements and ICP-MS being more sensitive for others. Principal component analysis classified the legume samples into four groups based on their elemental composition.
ACTA CHIMICA SLOVENICA
(2021)
Article
Chemistry, Physical
Mariusz Marc, Marta Bystrzanowska, Katarzyna Pokajewicz, Marek Tobiszewski
Summary: This paper summarizes the popular and innovative strategies for MIPs synthesis and pesticide determination in environmental and food samples since 2010. It highlights the importance of sample pre-treatment process and the application of MCDA in the analytical procedures.
Article
Chemistry, Analytical
Lianrun Huang, Fuxuan Zhang, Fangxuan Li, Yin Jia, Minghua Wang, Xiude Hua, Limin Wang
Summary: The established ic-ELISA and LFIA methods proved to be accurate and rapid for the determination of cypermethrin (CYP) in agricultural products.
Article
Environmental Sciences
Yanina Garcias, Romina Torres Astorga, Guillermo Ojeda, Sergio de los Santos Villalobos, Samuel Tejeda, Hugo Velasco
Summary: The study focuses on investigating the main sources of sediment at the mouth of a small catchment in Argentina, using elemental analysis and a mixing model to estimate the contribution of each source. Potential sediment sources were selected based on identifying geomorphological units and land uses.
Article
Chemistry, Analytical
Beata Zawisza, Rafal Sitko, Anna Gagor
Summary: A novel solid-phase microextraction method using a nanocomposite material has been developed for the preconcentration and determination of ultra-trace gold ions and gold nanoparticles. The method offers high sorption capacity and accurate detection limits, while adhering to the principles of Green Chemistry by reducing the amount of sorbent and eliminating solvents. The method has been successfully applied to extract and determine ultra-trace gold in cosmetic products.
Article
Multidisciplinary Sciences
Karolina Planeta, Aldona Kubala-Kukus, Agnieszka Drozdz, Katarzyna Matusiak, Zuzanna Setkowicz, Joanna Chwiej
Summary: The essential roles of major, minor, and trace elements in various physiological and pathological processes within living organisms have made elemental analysis of biomedical samples a popular issue. Commonly used tools for analyzing elemental composition include F-AAS, GF-AAS, ICP-OES, and ICP-MS, each with its own advantages and limitations. This study aims to discuss the validation parameters and utility of selected instrumental techniques in analyzing biological samples, focusing on sample preparation methods and comparing the detection limits, precision, and trueness of different elemental analysis techniques.
SCIENTIFIC REPORTS
(2021)
Article
Spectroscopy
Geovani Tadeu Costa Junior, Lidiane Cristina Nunes, Marcos Henrique Feresin Gomes, Eduardo de Almeida, Hudson Wallace Pereira de Carvalho
X-RAY SPECTROMETRY
(2020)
Article
Environmental Sciences
Daigard Ricardo Ortega Rodriguez, Eduardo de Almeida, Mario Tomazello-Filho, Hudson Wallace Pereira de Carvalho
SCIENCE OF THE TOTAL ENVIRONMENT
(2020)
Article
Biochemistry & Molecular Biology
Gabriel S. Montanha, Eduardo S. Rodrigues, Sara L. Z. Romeu, Eduardo de Almeida, Andre R. Reis, Jose Lavres Jr, Hudson W. Pereira de Carvalho
Article
Spectroscopy
Eduardo de Almeida, Fabio L. Melquiades, Joao P. R. Marques, Eva Margui, Hudson W. P. de Carvalho
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
(2020)
Article
Environmental Sciences
Eduardo S. Rodrigues, Gabriel S. Montanha, Eduardo de Almeida, Hugo Fantucci, Rafael M. Santos, Hudson W. P. de Carvalho
Summary: This study evaluated the uptake and translocation of cerium nanoparticles and soluble cerium by soybean plants, finding that CeO2 NPs were absorbed at the same rate as biomass production, did not impair plant development, but could potentially bioaccumulate in the food chain.
Article
Chemistry, Analytical
Daniel Fernandes Andrade, Eduardo de Almeida, Hudson Wallace Pereira de Carvalho, Edenir Rodrigues Pereira-Filho, Dulasiri Amarasiriwardena
Summary: This study developed analytical methods for characterization of printed circuit boards from mobile phones using three complementary spectroanalytical techniques. The study found the spatial distribution of important base metals, toxic elements, and non-metallic fraction within the PCB samples. Calibration models for Cu determination were obtained using various methods, and data fusion of LIBS and micro-XRF analysis enhanced the accuracy of the analysis.
Article
Plant Sciences
Rafaela Alenbrant Migliavacca, Marcos Henrique Feresin Gomes, Risely Ferraz-Almeida, Eduardo de Almeida, Jose Lavres, Hudson Wallace Pereira de Carvalho, Rafael Otto
Summary: The research compared the effects of water-soluble manganese sources and less water-soluble manganese sources sprayed on soybean leaves, and found that MnCO3 accumulated more in trifoliate leaflets while MnSO4.H2O had better redistribution effects.
JOURNAL OF PLANT NUTRITION
(2021)
Article
Green & Sustainable Science & Technology
Anderson do Espirito Santo Pereira, Jhones Luiz de Oliveira, Susilaine Maira Savassa, Carolina Barbara Rogerio, Gerson Araujo de Medeiros, Leonardo Fernandes Fraceto
Summary: The global agriculture sector is seeking new agricultural technology revolutions to meet the growing demand for food production and to protect the environment from harmful practices. Nanotechnology has emerged as a platform with the potential to transform the entire food chain, making agriculture more resilient and sustainable. Lignin nanoparticles offer potential applications in agriculture, particularly for environmentally friendly pesticide production.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Agronomy
Jessica Bezerra de Oliveira, Joao Paulo Rodrigues Marques, Bruna Wurr Rodak, Fernando Shintate Galindo, Natalia Fernandes Carr, Eduardo Almeida, Koiti Araki, Josue Martins Goncalves, Andre Rodrigues dos Reis, Antony van der Ent, Hudson Wallace Pereira de Carvalho, Jose Lavres
Summary: This study aimed to evaluate the effect of different particle sizes of nickel sources on soybean seed germination rate and the uptake/translocation of nickel by roots and seeds. The results showed that seeds treated with nanometric Ni-hydroxide had wider nickel distribution in the seeds and into the radicle, while seeds treated with micrometric Ni-hydroxide resulted in nickel diffusion around the seeds. Regardless of the type of nickel source, the coated seeds had high nickel concentrations in the hilum, but no transfer of nickel into the cotyledons.
Article
Environmental Sciences
E. Margui, I. Queralt, E. de Almeida
Summary: This review provides an overview of the applications of X-ray fluorescence instrumentation in environmental science research from 2006 to 2020. It describes the basic principles, instrumentation, and advances in the field, highlighting the potential of XRF for environmental assessment.
Review
Green & Sustainable Science & Technology
Muhammad Mujtaba, Leonardo Fernandes Fraceto, Mahyar Fazeli, Sritama Mukherjee, Susilaine Maira Savassa, Gerson Araujo de Medeiros, Anderson do Espirito Santo Pereira, Sandro Donnini Mancini, Juha Lipponen, Francisco Vilaplana
Summary: In response to the global warming crisis caused by uncontrolled greenhouse gas production, industries are striving to reduce their dependence on petrochemicals and petroleum-based industrial components and replace them with biobased, sustainable, and environmentally friendly alternatives. Agricultural waste, particularly lignocellulosic biomass, provides a significant resource for the development of various bio-products. Recent advancements in integrated biorefineries have improved the utilization of waste lignocellulose components to produce biofuels, platform chemicals, resins, bioplastics, additives, and other biobased materials for diverse applications.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Agriculture, Multidisciplinary
Rafaela Alenbrant Migliavacca, Risely Ferraz-Almeida, Marcos Henrique Feresin Gomes, Eduardo de Almeida, Hudson Wallace Pereira de Carvalho, Rafael Otto
Summary: The objective of this study was to evaluate the effects of soluble and insoluble manganese sources and rates on the uptake, transport, and redistribution of manganese in soybean, as well as crop yield. Foliar fertilization with manganese sulfate increased manganese contents in leaves, stems, and grains, but did not affect yield and dry matter production. Manganese sulfate performed better than manganese carbonate in terms of uptake, transport, and redistribution of manganese in the plant.
PESQUISA AGROPECUARIA BRASILEIRA
(2022)
Article
Agriculture, Multidisciplinary
Thais de Marchi Soares, Hudson Wallace Pereira de Carvalho, Eduardo de Almeida, Geovani Tadeu Costa Jr, Paulo Sergio Pavinato
Summary: This study aimed to evaluate the potential of portable X-ray fluorescence equipment in quantifying phosphorus in sugar cane leaves in vivo. Through experiments, the best quantitative strategy was found and a high correlation between pXRF and ICP OES in determining phosphorus content in sugar cane leaves was discovered.
ACS AGRICULTURAL SCIENCE & TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Susilaine Maira Savassa, Hiram Castillo-Michel, Ana Elena Pradas del Real, Juan Reyes-Herrera, Joao Paulo Rodrigues Marques, Hudson W. P. de Carvalho
Summary: The increasing number of patents indicates a growing trend in the use of nanoparticles in agriculture. Results of the study show that Ag2S NPs have a positive effect on the development of bean seedlings, while AgNO3 has a negative impact, with silver accumulated and biotransformed along the seed coat.
ENVIRONMENTAL SCIENCE-NANO
(2021)