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Decomposition and Mineralization of Dimethyl Phthalate in an Aqueous Solution by Wet Oxidation
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2363
Assessment of potentially toxic elements pollution in soils and plant leaves along the high-traffic highway zones in Tehran, Iran
Published 2024-12-01“…Samples were digested with aqua regia (soil) and nitric-hydrochloric acid (leaves) and analyzed using atomic absorption spectrophotometry. Pollution indices, including Pollution Load Index (PLI), Transfer Factor (TF), and Bioaccumulation Factor (BCF), were applied to assess contamination levels and metal mobility.The results showed moderate pollution levels across high-traffic zones (PLI = 3.94), with cadmium (Cd) contributing the most significant ecological risk (RI = 154.50). …”
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2364
Analysis of the Concentration of Heavy Metals in Khat Grown in Meru County and the Assessment of Their Associated Health Risks
Published 2024-01-01“…Therefore, the motivation behind this contribution is to determine the levels of six heavy metals, namely, cadmium (Cd), copper (Cu), chromium (Cr), lead (Pb), iron (Fe), and nickel (Ni) in consumable Meru khat samples, compare these levels with the permissible limits of World Health Organization (WHO) in order to predict associated health risks, and to estimate the noncarcinogenic risks of these metals by total health quotient (THQ) and health index (HI) on khat consumers. 1.0 g of dry ground khat samples was digested in 0.05 M HCl and allowed to stand for 5 hours before being analyzed for heavy metals using inductively coupled plasma atomic emission spectroscopy (ICP-AES). The mean heavy metal concentrations (mg/kg) in dry khat samples of six toxic heavy metals were Cd (7.81 ± 1.56), Cr (15.98 ± 2.22), Cu (15.81 ± 2.84), Fe (97.35 ± 32.67), Ni (0.37 ± 0.02), and Pb (32.36 ± 9.95). …”
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2365
MDFGNN-SMMA: prediction of potential small molecule-miRNA associations based on multi-source data fusion and graph neural networks
Published 2025-01-01“…Firstly, MDFGNN-SMMA extracted features of Atom Pairs fingerprints and Molecular ACCess System fingerprints to derive fusion feature vectors for small molecules (SMs). …”
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2366
Comparison of the extraction efficiencies of four different solvents used in trace metal digestion of selected soils within Abakaliki, Nigeria
Published 2015-07-01“…Concentrations of 7 selected trace metals (Pb, Zn, Mn, Ni, Cd, Cu and Fe) were determined in the digested soil samples using atomic absorption spectrophotometer. The concentrations (mg/kg) range, irrespective of sampling sites were: Pb (2.85-43.07; 1.42-11.49; 3.83-131.90; 1.98-184.12), Zn (0.02-3.98; 0.01-0.79; 2.25-13.22; 0.15-39.45), Mn (1.33-78.83; 0.38-14.85; 1.02-66.24; 0.84-104.39), Ni (1.15-14.10; 0.07-2.57; 2.09-49.70; 5.10-92.72), Cd (0.03-2.79; 0.01-0.61; 0.25-9.20; 0.15- 3.68), Cu (1.59-79.96; 0.65-14.33; 1.02-184.68; 1.60-134.10), Fe (6.62-149.44; 0.39-12.22; 44.95-375.27; 7.48-548.32) using EDTA, DTPA, HNO3/HClO4 and HCl/HNO3 respectively as extractanes. …”
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Effects of Soil Properties on Pb, Cd, and Cu Contents in Tobacco Leaves of Longyan, China, and Their Prediction Models
Published 2023-01-01“…The content of lead, cadmium, and copper in soil was determined using hydrochloric acid extraction-AAS and graphite furnace atomic absorption spectrometry. Inductively coupled plasma-mass spectrometry was used to determine heavy metal in tobacco leaf. …”
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2368
Shape and Measurement Monitoring of Inrush Current Characteristics of a Battery-Capacitive Energy Storage Device with Two-Channel Digital Oscilloscope
Published 2021-12-01“…The LIB part of the storage device is made on the basis of the ATOM 10 multifunctional motor drive device of the new generation, which contains 15 V lithium-ion battery and 9.4 A·h capacity. …”
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Impact of ZnO nanopriming on physiological and biochemical traits of wheat (Triticum aestivum L.) seedling
Published 2024-03-01“…Inductively coupled plasma atomic absorption spectrophotometer (ICP-AAS) measurements validated the progressive increase in Zinc content in the nanoprimed seedlings, further affirming the dose-dependent trend. …”
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Carcinogenic and non-carcinogenic human health risk assessment of some vegetables irrigated with wastewater in Jos, Plateau State, Nigeria
Published 2025-01-01“…Methods: Four vegetable farms that exclusively use untreated industrial effluents were identified and eight commonly consumed vegetables were sampled for heavy metal analysis using atomic absorption spectrometry. The metals of interest were Cd, Pb, Cr, Cu, and Zn. …”
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2372
Research Progress and Prospect of High-Nitrogen Austenitic Stainless Steel
Published 2025-02-01“…Additionally, an overview of the powder metallurgy process for fabricating high nitrogen steel is presented, which includes methods such as Mechanical Alloying, Gas Atomization, Plasma Rotating Electrode Process, and Solid-state Powder Nitriding. …”
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Assessment of heavy metal pollution and spatial distribution in waterfalls of Chattogram district, Bangladesh: Implications for drinking and irrigation purposes
Published 2025-04-01“…The concentrations of Na, K, Ca, Mg, Fe, Mn, Cu, Cd, Hg, Cr, and As in water samples were measured by Atomic Absorption Spectrometer (AAS), and compared with the national (ECR, 2023) and international standards (WHO, 2015). …”
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2375
Quantum chemical study of molecular properties of small branched-chain amino acids in water
Published 2025-01-01“…However, cluster analysis of 12 electro neutral, linear and branched amino acids with 2 – 6 carbon atoms discriminates them into five clusters. It is found that the electrophilicity index correlates with the absolute reduction potential along a straight line (24 items). …”
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Metallized Sol–Gel coatings on ceramic glazes with photocatalytic activity
Published 2024-10-01“…The microstructure of the layers, studied by grazing incidence X-ray diffraction (GIXRD), scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM-EDS), and atomic force microscopy (AFM), shows that the heterogeneous nucleation of oxides from the inks supposes the formation of many nanocrystals that form clusters, also of nanometric size, growing parallel to each other and normal to the surface, following a film–glaze interaction model of nucleation, growth, and dissolution. …”
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Simultaneous Determination of Mineral Nutrients and Toxic Metals in M. stenopetala from Southern Ethiopia: A Comparative Study of Three Cultivating Areas Using MP-AES
Published 2024-01-01“…In this study, for the first time, the levels of thirteen micro- and macromineral nutrients in the leaves, seeds, and supportive soil of Moringa stenopetala (M. stenopetala) were simultaneously determined using microwave plasma atomic emission spectroscopy (MP-AES). The samples were collected during the arid season, in 2019 from the three main M. stenopetala growing areas in southern Ethiopia (Chano Mile Kebele, Nechisar Kebele, and Konso Special Woreda). …”
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First-principles calculations to investigate thermoelectric, thermophysical, and optical properties of RNi₄P₁₂ (R = Sm, Eu) rare-earth metal skutterudites
Published 2024-12-01“…The focus is on Ni-P-based filled skutterudite, featuring localized 4f and 5d-electrons, which exhibit dense energy bands near the Fermi energy, originating from rare earth and Ni-atoms. The dense density of states near the Fermi energy suggests suitability for thermoelectric applications. …”
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Physiological and biochemical features of fig cultivars (<I>Ficus carica</I> L.) from the collection of the Nikita Botanical Gardens
Published 2022-12-01“…The content of essential elements was measured on a Kvant 2MT atomic absorption spectrophotometer. Drought resistance was assessed using the method of determining the water-holding capacity and resistance to dehydration in the leaves of fruit crops.Results. …”
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