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1861
Vitamin Analysis, Trace Elements Content, and Their Extractabilities in Tetrapleura tetraptera
Published 2020-01-01“…The total trace element concentration of Fe, Cu, Co, Mn, and Zn and their extractabilities (%) were determined using flame atomic absorption spectrometer (FAAS), whereas UV-VIS spectrophotometer was used to determine selenium concentration. …”
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1862
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1863
The antibiofilm effect and mechanism of silver nanowire-modified glass ionomer cement against multi-species oral biofilm
Published 2025-01-01“…Compressive strength, surface roughness, hardness, and wettability were measured by a universal testing machine, an atomic force microscope (AFM), a Vickers microhardness tester, and a contact angle meter, respectively. …”
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1864
The Cortisol Levels, Histology, and Fine Structure of Various Tissues of Fish Gambusia affinis (Baird and Girard, 1853) after Exposure to Lead
Published 2023-01-01“…The levels of Pb in gills were determined by employing atomic absorption spectrophotometer. The cortisol concentration in organ samples of fish was determined through the utilization of a cortisol ELISA Kit. …”
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1865
Trace metals potential human health risks assessment through consuming common food spices in Ado Ekiti, Southwest, Nigeria
Published 2025-03-01“…Methods: The research employed an Atomic Absorption Spectrophotometer (AAS) to detect trace minerals like iron (Fe), chromium (Cr), lead (Pb), cadmium (Cd), and arsenic (As) present in commonly consumed spices in Ado Ekiti, Nigeria. …”
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1866
Use of Nanostructured Layered Double Hydroxides as Nanofilters in the Removal of Fe2+ and Ca2+ Ions from Oil Wells
Published 2018-01-01“…The isolated compounds were characterized with the help of XRD, IR, and SEM/EDAX, and their ability to remove scale-forming ions from the aqueous system was studied with the help of atomic absorption spectroscopy (AAS). The SEM micrographs of Mg-O-Al-OH and Ca-O-Al-OH layers intercalated with PO43− and/or [PO4PF6]4− anions are similar consisting of uniform nanospheres with an average size of 100 nm, while the M-O-Al-OH layer of compound 3, intercalated with SO42− anions, consists of hexagonal nanoplate crystals. …”
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1867
Bioaccumulation and Health Risk Assessments of Heavy Metals in Mussels Collected from Madura Strait, Indonesia
Published 2021-03-01“…The seawater, sediment, and marine mussels were obtained from four sites and heavy metal concentrations were analyzed using Atomic Absorption Spectroscopy. In the seawater, heavy metals were in the order of Cu, Pb, Cd, and Zn from the highest to the lowest concentration respectively, while they went down in the order of Zn, Cu, Pb, and Cd in the sediment respectively. …”
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1868
The Role of Microelements of Lumbar Disc Degeneration in Patients Undergoing Lumbar Spine Surgery
Published 2024-12-01“…The zinc (Zn) and copper (Cu) levels in the blood were determined using an atomic absorption spectrometer. The body mass index (BMI) was determined using the formula: BMIg/m2 = weight/height2. …”
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1869
<i>o</i>-Halogenation and -Alkoxylation of Phenylglycine Derivatives by Pd-Mediated C-H Functionalization: Scope and Limitations
Published 2025-01-01“…The reaction is general and tolerates a variety of functional groups (R<sub>1</sub> to R<sub>4</sub>) at the aryl ring, the Cα, and the N atom. On the other hand, the reaction of [Pd(μ-Cl)(C<sub>6</sub>H<sub>3</sub>R<sub>1</sub>C(R<sub>2</sub>)(R<sub>3</sub>)N(R<sub>4</sub>)<sub>2</sub>]<sub>2</sub> (<b>1</b>) with PhI(OAc)<sub>2</sub> in the presence of a variety of alcohols R<sub>5</sub>OH (<b>4</b>) gives the o-alkoxylated phenylglycines C<sub>6</sub>H<sub>3</sub>(OR<sub>5</sub>)R<sub>1</sub>C(R<sub>2</sub>)(R<sub>3</sub>)N(R<sub>4</sub>)<sub>2</sub> (<b>5</b>), also as a general process. …”
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1870
Human health risk from groundwater consumption: A case study in the Apaaso-Tafo Community in the Bono East Region of Ghana
Published 2025-02-01“…The concentrations of metals (Ca2+, Mg2+ and Fe) were determined using atomic absorption spectroscopy, bacteria (total and faecal coliform) using Multiple Tube Fermentation and Membrane Filter Techniques, and physicochemical qualities using electrometric, titrimetric, argentometric and spectrophotometric methods. …”
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1871
Effect of Buffer Charge Redistribution on RF Losses and Harmonic Distortion in GaN-on-Si Substrates
Published 2024-01-01“…While the origin of RF losses and consequently a decreased effective substrate resistivity <inline-formula> <tex-math notation="LaTeX">$({\rho }_{eff})$ </tex-math></inline-formula> in GaN-on-Si substrates is now understood to be diffusion of Al and Ga atoms into the silicon substrate during III-N growth, the effect of upper III-N buffer layers on the <inline-formula> <tex-math notation="LaTeX">${\rho }_{eff}$ </tex-math></inline-formula> degradation under stressed conditions remains unclear. …”
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1872
Evolution and Recent Radiation Therapy Advancement in Uganda: A Precedent on How to Increase Access to Quality Radiotherapy Services in Low- and Middle-Income Countries
Published 2025-01-01“…With more support from the International Atomic Energy Agency, the acquisition of dosimetry equipment, treatment planning systems, and additional professional training signaled a new era in the fight against cancer. …”
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1873
An analysis of heavy metals contamination and estimating the daily intakes of vegetables from Uganda
Published 2023“…Amaranthus, cabbages, scarlet eggplants, and tomatoes were collected from open markets, processed, and analyzed by atomic absorption spectrometry. Modeled EDI, principal component (PCA) and cluster analysis (CA) were conducted to identify relationships in the samples. …”
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1874
Safety of Drinking Water from Primary Water Sources and Implications for the General Public in Uganda
Published 2019“…Water samples were analyzed for copper (Cu), iron (Fe), zinc (Zn), lead (Pb), cadmium (Cd), and chromium (Cr) levels using atomic absorption spectrometry (AAS). Water safety measures (EDI, HI, and ILCR) were established for each water source and compared with local and international water permissible standards for each analyte. …”
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1875
Effect of carbon quantum dots on the anticorrosive action of the tin coatings
Published 2025-01-01“…In addition, characterizations of the CDs and composite films were carried out by Fourier Transform Infrared Spectroscopy (FTIR), Zeta Potential (ζ), Dynamic Light Scattering (DLS), UV-VIS Spectroscopy, Fluorimetry, X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Energy Dispersive X-ray Spectroscopy (EDS), Transmission Electron Microscopy (TEM), Atomic Force Microscopy (AFM) and Excited Photoelectron Spectroscopy X-Ray (XPS). …”
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1876
CeO2−δ as Electron Donor in Co0.07Ce0.93O2−δ Solid Solution Boosts Alkaline Water Splitting
Published 2025-01-01“…Herein, a series of cerium dioxide (CeO2−δ) based solid solution materials is synthesized via substituting Ce atoms with transition metal (Co, Cu, Ni, etc.), in which Co0.07Ce0.93O2−δ shows optimized band structure because of electron transition in the reaction, namely Co3+ (3d64s0) + Ce3+ (4f15d 06s0) → Co2+ (3d74s0) + Ce4+ (4f05d06s0), with more stable electronic configuration. …”
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1877
Association between some environmental risk factors and attention-deficit hyperactivity disorder among children in Egypt: a case-control study
Published 2025-01-01“…Hair samples were collected for analysis of lead and manganese levels using Atomic Absorption Spectrophotometer. A pre-designed interview questionnaire was used to determine the important environmental risk factors that may be related to ADHD. …”
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1878
An Improved Bio-Inspired Material Generation Algorithm for Engineering Optimization Problems Including PV Source Penetration in Distribution Systems
Published 2025-01-01“…The simulation results are then compared to various established bio-inspired algorithms, including Artificial Ecosystem Optimization (AEO), Fitness–Distance-Balance AEO (FAEO), Chef-Based Optimization Algorithm (CBOA), Beluga Whale Optimization Algorithm (BWOA), Arithmetic-Trigonometric Optimization Algorithm (ATOA), and Atomic Orbital Searching Algorithm (AOSA). Moreover, MGO and IMGO are tested on a real Egyptian power distribution system to optimize the placement of PV and the capacitor units with the aim of minimizing energy losses. …”
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1879
Levels of Cadmium, Copper, and Lead in Soils and Cassava Tubers Grown in Machakos County, Kenya
Published 2024-01-01“…Cadmium, copper, and lead levels in the collected samples were determined using the atomic absorption spectrometer (AAS) Shimadzu AA-6200 model. …”
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1880