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3661
Technical note: Towards atmospheric compound identification in chemical ionization mass spectrometry with pesticide standards and machine learning
Published 2025-01-01“…However, due to the complex interactions between reagent ions and target compounds, chemical understanding remains limited and compound identification difficult. …”
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3662
Pseudocapacitive performance of cobaltite and nickel cobaltite electrodes fabricated by layer-by-layer chemical deposition method
Published 2024-07-01“…Also, a more porous structure was obtained in the case of nickel cobaltite electrode, which could improve the diffusion of ions to the active materials. Pseudocapacitive performance of the electrodes was obtained by cyclic voltammetry (CV), galvanostatic charge-discharge (GCD) and electrochemical impedance spectroscopy (EIS) measurements. …”
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3663
Simple Instrumental and Visual Tests for Nonlaboratory Environmental Control
Published 2016-01-01“…Developed are the chemical colorimetric modes for fast detection of socially dangerous trace impurities in water such as Co(II), Pd(II), and Rh(III) as well as NO2--ions and Fe(III) serving as model impurities. Application of portable digital devices and scanner allows estimating the color coordinates and increasing the accuracy and sensitivity of the tests. …”
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3664
GSH/pH-responsive copper-based cascade nanocomplexes inducing immunogenic cell death through cuproptosis/ferroptosis/necroptosis in oral squamous cell carcinoma
Published 2025-02-01“…The fabricated nanocomplex, PC@B-H, leverages the acidic and reducing tumor microenvironment to release copper ions and plumbagin, triggering a cascade of cell death mechanisms including cuproptosis, ferroptosis, and necroptosis. …”
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3665
Study on the Weight and Patterns of Key Controlling Factors for Corrosion in Gathering and Transportation Pipelines of the Sulige Gas Field
Published 2024-12-01“…Since the western part of the Sulige Gas Field is a water-bearing gas reservoir, the pipelines are prone to corrosion, which severely affects the normal production operations of the gas field and results in significant economic losses and safety risks.In this study, the corrosion of gathering and transportation pipelines in the target gas field was analyzed.Based on this analysis, corrosion coupon experiments, scanning electron microscopy (SEM), confocal Raman microscopy and X-ray diffraction (XRD) techniques were employed, combined with water and gas quality analyses, to investigate the corrosion patterns of the pipelines.The primary controlling factors of corrosion, including chloride ions,microorganisms, CO2 partial pressure, total pressure and flow rate, were identified.Furthermore, the weight of each controlling factor was determined according to different corrosion characteristics.Results showed that when uniform corrosion of the samples was used as the evaluation criterion, the CO2 partial pressure had the greatest influence on the corrosion rate, accounting for 58.00%of the weight.When pitting corrosion of the samples was used as the evaluation criterion, microorganisms had the greatest influence on the corrosion rate, accounting for 34.00%of the weight.…”
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3666
Rapid SERS detection of antimony using a superparamagnetic FA@MIL-101(Fe) composite substrate
Published 2025-01-01“…This substrate showed high sensitivity and selectivity, achieving a detection limit below 4 × 10−8 M, while effectively minimizing interference from other ions. Additionally, the substrate maintained long-term stability, consistently performing over 21 days. …”
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3667
Groundwater Recharge and Hydrogeochemical Evolution in Leizhou Peninsula, China
Published 2015-01-01“…An analysis of the stable isotopes and the major ions in the surface water and groundwater in the Leizhou Peninsula was performed to identify the sources and recharge mechanisms of the groundwater. …”
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3668
Chemical Fingerprint and Metabolic Profile Analysis of Tianshu Tablets by Ultra-High Performance Liquid Chromatography/Quadrupole-Time of Flight Mass Spectrometry
Published 2019-01-01“…In a preliminary study, 77 chemical components in TST were determined by comparison with retention times, accurate molecular mass, and characteristic fragment ions of the known compounds in the literature and some well-known compounds were analyzed in detail, and the fragmentation pathways for parishins B, gastrodin A, and cnidilide or neocnilide were specifically analyzed. …”
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3669
Locally activated semisynthetic fluorescent biosensors for imaging cellular biochemistry
Published 2025-01-01“…Biosensors based on fluorescent proteins are widely used as genetically encoded indicators due to their capacity to target various biological analytes (metal ions, reactive oxygen species, biomolecules, etc.) within cells with precise localization. …”
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3670
Evaluation of Antimicrobial Activity Using Cadmium Oxide Nanoparticles Prepared by Physical Method (PLAL)
Published 2025-01-01“…PLAL is a top-down physical method that operates by splitting the precursor mass of metal ions into metal atoms. This work utilized a nanosecond Nd-YAG laser with two wavelengths, specifically 1064 nm and 532 nm, at a laser energy of 250 mJ. 250 pulses were applied for each wavelength during the synthesis process. …”
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3671
Protection of Petroleum Pipeline Carbon Steel Alloys with New Modified Core-Shell Magnetite Nanogel against Corrosion in Acidic Medium
Published 2013-01-01“…New method was used to prepare magnetite nanoparticle based on reduction of Fe(III) ions with potassium iodide to produce Fe3O4 nanoparticle. …”
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3672
Effect of Natural Antioxidants on the Stability of Linseed Oil and Fish Stored under Anaerobic Conditions
Published 2018-01-01“…The highest ability to reduce Fe3+ ions occurred in the samples containing 30% of the fish oil. …”
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3673
Effect of Zeolite Modification via Cationic Exchange Method on Mechanical, Thermal, and Morphological Properties of Ethylene Vinyl Acetate/Zeolite Composites
Published 2013-01-01“…Prior to mixing process, zeolite was modified via cationic exchange of alkylammonium ions. The effect of zeolite or organozeolite loading from 5 up to 25 volume percentages on the properties of EVA/zeolite composites was evaluated. …”
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3674
A Review of Removal of Pollutants from Water/Wastewater Using Different Types of Nanomaterials
Published 2014-01-01“…The paper will briefly overview the availability and practice of different nanomaterials (particles or fibers) for removal of viruses, inorganic solutes, heavy metals, metal ions, complex organic compounds, natural organic matter, nitrate, and other pollutants present in surface water, ground water, and/or industrial water. …”
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3675
Evaluation of the optical, structural, morphological and electronic properties of Rb3Bi2I9 Perovskites films prepared by Sequential Evaporation
Published 2025-02-01“…Considering the isoelectronic nature of lead (II) and bismuth (III) ions, stable and non-toxic alternatives for developing photovoltaic devices could potentially be found. …”
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3676
Simultaneous Determination of Cr, As, Se, and Other Trace Metal Elements in Seawater by ICP-MS with Hybrid Simultaneous Preconcentration Combining Iron Hydroxide Coprecipitation an...
Published 2018-01-01“…In the present study, ICP-MS with a new hybrid simultaneous preconcentration combining solid phase extraction using chelating resin and iron hydroxide coprecipitation in one batch at a single pH adjustment (pH 6.0) were developed for multielement determination of trace metal ions in seawater. In multielement determination, the present method makes it possible to determine Cr(III), As(V), Se (IV), and other 14 trace metal elements (Ti, V, Co, Ni, Cu, Zn, Zr, Ge, Cd, Sb, Sn, W, Pb, and U) in seawater. …”
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3677
Synthesis and Characterization of Nickel Nanoparticles: Biological and Photocatalytic Properties
Published 2025-01-01“…Phytochemicals derived from bacteria, microorganisms, and plant leaf extracts can convert nickel ions (Ni2+) into nickel nanoparticles. Room temperature is used for the synthesis procedure, and neither dangerous compounds nor unusual reaction conditions are used. …”
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3678
Recyclable adsorbents of Fe and La co-modified clam shells for phosphorus removal from domestic sewage: Characterization and mechanisms
Published 2025-02-01“…This study showed that La@Fe-CCS demonstrated superior adsorption capabilities within a pH range of 3–8 compared to Fe-CCS. Coexisting ions and humic acid (HA) had limited effects. La@Fe-CCS also exhibited rapid adsorption kinetics, achieving equilibrium within 20 min. …”
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3679
High efficiency extractions of V, Cr, Ti, Fe and Mn from vanadium slag by microwave heating
Published 2021-01-01“…The mechanism of efficient chlorination can be summarized as the enhancement of ions diffusion process and enhanced chemical reaction due to local high temperature.…”
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3680
Electrokinetic in situ leaching of U from low-permeability uranium ore
Published 2025-02-01“…Under electrical stimulation, the leaching agent exhibited uniform penetration ability through combined electromigration and electroosmosis effects, significantly improving the directed migration of the target ions. Various characterization techniques, such as Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy-energy dispersive X-ray spectrometry (SEM-EDS), three-dimensional computed tomography (CT) pore scanning and Brunauer-Emmett-Teller (BET), showed that the electrokinetic-induced action overcame the preferential flow phenomena, promoted the dissolution of the target minerals and gangue rocks, and notably improved the pore structure to ultimately enhance the uranium leaching efficiency. …”
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