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Simultaneous Trace Analysis of Lead and Cadmium in Drinking Water, Milk, and Honey Samples Through Modified Screen-Printed Electrode
Published 2025-04-01“…N-rGO@ppy/GCE exhibited distinct stripping peaks for Pb<sup>2+</sup> and Cd<sup>2+</sup>, with a linear range of 1 to 500 μg L<sup>−1</sup>. The limits of detection (LODs) were found to be 0.080 μg L<sup>−1</sup> for Pb<sup>2+</sup> and 0.029 μg L<sup>−1</sup> for Cd<sup>2+</sup>, both of which are significantly below the standards set by the World Health Organization (WHO). …”
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543
Alcohol consumption and cerebrospinal fluid biomarkers for preclinical alzheimer’s disease in a population-based sample of 70-year-olds
Published 2025-07-01“…Methods This was a cross-sectional cohort study. The sample (n = 301) was derived from the 2014–2016 examinations of the Gothenburg H70 Birth Cohort Studies. …”
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544
The method for impact analyzing of duplex plasma nitriding and DLC coatings on the cyclic performance of 16MnCr5 piston pin steel under plain and fretting fatigue testing
Published 2025-06-01“…For the linear regression model analyzing all logarithmic fatigue data, the R² was 92.87 %, the Adjusted R² was 90.75 %, and the Predicted R² was 82.76 %.…”
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545
STRAIN LOCALIZATION PECULIARITIES AND DISTRIBUTION OF ACOUSTIC EMISSION SOURCES IN ROCK SAMPLES TESTED BY UNIAXIAL COMPRESSION AND EXPOSED TO ELECTRIC PULSES
Published 2015-09-01“…Deformation of samples was studied, and acoustic emission (AE) signals were recorded. …”
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546
Development of an Analytical Protocol for Determination of Cyanide in Human Biological Samples Based on Application of Ion Chromatography with Pulsed Amperometric Detection
Published 2017-01-01“…Under the optimized conditions, the method showed good linearity in the range of 1–100 μg/L for urine, 5–100 μg/L for saliva, and 3–100 μg/L for sweat samples with determination coefficients (R)>0.992. …”
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547
Simple Detection of Di-Butyl Phthalate in Aqueous Samples Using UV–Visible Spectroscopy Based on Functionalized Gold Nanoparticles
Published 2025-01-01“…A higher sensitivity of gold nanorods was noticed compared to the spherical nanoparticles, and the results show absorbance (Δ Abs = 0.57 ± 0 and 0.54 ± 0.007) and good linearity with correlation coefficient values (0.994 and 0.991) using gold nanorods functionalized by PEG-NH2 and PEG-COOH, respectively, upon adding different concentrations of DBP in aqueous samples. …”
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548
Improved methodology to survey veterinary antibiotics in environmental samples using µSPEed microextraction followed by ultraperformance liquid chromatography
Published 2025-03-01“…Abstract A μSPEed microextraction combined with ultra-performance liquid chromatography (UHPLC) with UV detection was developed for analysing six veterinary antibiotics (tetracycline, chlortetracycline, oxytetracycline, doxycycline, sulfamethoxazole, and trimethoprim) in environmental samples. To optimise extraction, 12 sorbent cartridges, sample loading cycles, volumes, and pH were assayed. …”
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549
Air-Assisted Liquid–Liquid Microextraction (AALLME) as an Alternative Sample Pre-Treatment for Isolating Tetrahydrocannabinol (THC) from Hair
Published 2025-06-01“…Due to its widespread use, there is a need for analytical methods that can detect it in biological samples. Hair is of particular interest in forensic toxicology as it is the only biological sample that enables retrospective analysis of consumption. …”
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Hydrophilic Interaction Chromatography-Tandem Mass Spectrometry for Determination of Aminoglycoside Residues in Liver and Kidney Samples from Livestock and Poultry
Published 2025-06-01“…The results revealed that the calibration curves for all analytes had good linearity within the corresponding concentration ranges, with determination coefficients of ≥ 0.99. …”
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551
Rapid, Multi-Sample Assay of Gabapentin in Capsules Using Easy-to-Setup and Low-Cost Smartphone-Based Fluorescence Measurement
Published 2025-07-01“…Results: The SDIF method exhibited excellent linearity (r² = 0.9994) over GBP concentrations of 0.2–4.0 μg/mL, with high accuracy (98%–102% recovery) and precision (RSD < 2%). …”
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552
Frequency Domain Sampling Optimization of Cable Defect Detection and Location Method Based on Exponentially Increased Frequency Reflection Coefficient Spectrum
Published 2025-05-01“…The existing linear frequency increment cable defect detection method using frequency domain reflectometry suffers from severe pseudo-peak phenomena due to non-targeted frequency domain sampling, which interferes with diagnosis. …”
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Comparison of Sampling Designs for Estimating Deforestation from Landsat TM and MODIS Imagery: A Case Study in Mato Grosso, Brazil
Published 2014-01-01“…The MODIS-derived deforestation is used to assist in sampling and extrapolation. Three sampling designs are compared according to the estimated deforestation of the entire study area based on simple extrapolation and linear regression models. …”
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A 28 GHz Phased-Array Transmitter Based on Doherty Spatial Combining Technique With a Local Sub-Sampling PLL
Published 2025-01-01“…Compared to uniformly excited linear phased array (UELA), the efficiency improvement is by 40<inline-formula><tex-math notation="LaTeX">$\%$</tex-math></inline-formula>. …”
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556
Study on X-ray fluorescence measurement method for Fe content in secondary circuit sampling filter membranes of nuclear power plants
Published 2025-09-01“…The measurement of iron (Fe) content in second-loop sampling filter membranes is critical for evaluating corrosion product deposition in pressurized water reactor (PWR) nuclear power plants. …”
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An evaluation of population indices for northern bobwhite
Published 2019-06-01“…Due to their convenient sampling designs, indices are commonly used by land managers and researchers to predict or estimate hunting‐season populations. …”
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559
Multi-matrix contamination by cyclic and linear siloxanes in a highly industrialized estuarine environment of Korea: source identification, seasonal variation, and bioaccumulation...
Published 2025-07-01“…In particular, cyclic siloxanes showed a greater sensitivity to seasonal variation than linear siloxanes, with concentrations fluctuating significantly across sampling periods. …”
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560
Effectively eliminating lead and cadmium from industrial wastewater using a biowaste-based sorbent
Published 2025-01-01Get full text
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