Search Results - "Nam, Sang‐Ho"
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A Simple Laser-Induced Breakdown Spectroscopy Method for Quantification and Classification of Edible Sea Salts Assisted by Surface-Hydrophilicity-Enhanced Silicon Wafer Substrates
Published in Sensors (Basel, Switzerland) (20-11-2023)“…Salt, one of the most commonly consumed food additives worldwide, is produced in many countries. The chemical composition of edible salts is essential…”
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Speciation and quantification of vanadium in vanadium‐enriched apples by liquid chromatography coupled with inductively coupled plasma atomic emission spectrometry
Published in Bulletin of the Korean Chemical Society (01-03-2022)“…Biological and toxic effects of vanadium depend on its chemical form. In this work, speciation and quantification of vanadium was performed for…”
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Spreading a water droplet on the laser-patterned silicon wafer substrate for surface-enhanced laser-induced breakdown spectroscopy
Published in Spectrochimica acta. Part B: Atomic spectroscopy (01-11-2015)“…For effective analysis of a small amount of liquid samples such as a single-droplet, surface-enhanced laser-induced breakdown spectroscopy (LIBS) can be…”
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Improving Analytical Performance of Laser‐induced Breakdown Spectroscopy for Strontium, the Minor Impurity Element, in Salts Using Multiple Filter‐Paper Sampling
Published in Bulletin of the Korean Chemical Society (01-05-2021)“…Strontium (Sr) is an element of toxicological concern due to its close chemical proximity to Ca. In this work, Sr in sea salts collected from China and South…”
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Quantitative analysis of ceria co-doped with samarium and gadolinium using laser-induced breakdown spectroscopy
Published in Analytical methods (11-02-2022)“…Ceria doped with low-valence lanthanide cations has been introduced for use as an electrolyte in solid oxide fuel cells (SOFCs). Improving the performance of…”
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A Study on the Reduction of Inorganic Arsenic in Hijiki and Rice Using the Various Pretreatments and Inductively Coupled Plasma Mass Spectrometry
Published in Mass spectrometry letters (01-09-2021)“…Several pretreatment methods have been developed to reduce the inorganic arsenic, which is known to be highly harmful to humans, among various arsenic species…”
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Feasibility of quantitative inorganic arsenic speciation at the parts-per-trillion level using solid phase extraction and femtosecond laser ablation inductively coupled plasma mass spectrometry
Published in Journal of analytical science and technology (13-07-2021)“…Toxicity of arsenic compounds depends on the chemical structure as well as the concentration. Thus, separation of the toxic arsenic species should precede the…”
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Fast and simple selenium speciation by solid phase extraction and laser-induced breakdown spectroscopy
Published in Journal of analytical science and technology (07-07-2020)“…The chemical properties including toxicity of selenium depend on the concentration and chemical structure present in the natural environment. Inorganic…”
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Enhancement of reactivity of calcium hydroxide-activated slag mortars by the addition of barium hydroxide
Published in Construction & building materials (01-03-2010)“…Sixteen alkali-activated (AA) mortars were mixed and cured at water or air-dried conditions to explore the effectiveness and limitation for the application of…”
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Effects of thermal aging on degradation mechanism of flame retardant-filled ethylene-propylene-diene termonomer compounds
Published in Journal of applied polymer science (20-01-2015)“…ABSTRACT Ethylene–propylene–diene termonomer (EPDM) compounds filled with halogenated (Br and Cl) flame retardants (FRs) and Sb2O3 were prepared via melt…”
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Total Arsenic and Arsenic Species in Seaweed and Seafood Samples Determined by Ion Chromatography Coupled with Inductively Coupled End-on-Plasma Atomic Emission Spectrometry
Published in Bulletin of the Korean Chemical Society (01-12-2016)“…An analytical method was developed for the extraction and determination of total arsenic and arsenic species in seafood by ion chromatography coupled with…”
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A Study on the Separation of Co(II), Ni(II), and Mg(II) by Solvent Extraction with Cationic Extractants
Published in Bulletin of the Korean Chemical Society (01-11-2015)“…Selective stripping of Co and Ni from loaded Cyanex 301 by using HCl. Solvent extraction and separation of Co (0.8 g/L), Ni (0.3 g/L), and Mg (0.5 g/L) with…”
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A Study on the Reduction of Inorganic Arsenic in Hijiki and Rice Using the Various Pretreatments and Inductively Coupled Plasma Mass Spectrometry
Published in Mass spectrometry letters (30-09-2021)“…Several pretreatment methods have been developed to reduce the inorganic arsenic, which is known to be highly harmful to humans, among various arsenic species…”
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Effects of repetitive photodynamic therapy using indocyanine green for acne vulgaris
Published in International journal of dermatology (01-10-2016)“…Background Indocyanine green (ICG) is a photosensitizer recently introduced for the treatment of acne. Objective To evaluate the efficacy and safety of…”
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Feasibility of Rapid Classification of Edible Salts by a Compact Low-Cost Laser-induced Breakdown Spectroscopy Device
Published in Bulletin of the Korean Chemical Society (01-01-2015)“…We investigated feasibility of a compact, low‐cost, laser‐induced breakdown spectroscopy (LIBS) device made up of a Q‐switched, diode‐pumped, solid‐state laser…”
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Highly Precise Laser-Induced Breakdown Spectroscopy Analysis of Major Mineral Nutrients in Edible Salts Using Miniaturized Salt Ponds and Alternating Laser-Ablation Data Sampling
Published in Applied spectroscopy (01-12-2023)“…In this work, we applied a hydrophilicity-enhanced solid substrate and an alternating laser-ablation data sampling (ALADS) scheme to improve laser-induced…”
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Classification of fermented soybean pastes using inductively-coupled plasma optical emission spectroscopy and multivariate data modeling
Published in Journal of food composition and analysis (01-10-2023)“…Fermented soybean paste is widely used in food sauces and stews in East Asia. The main ingredients are soybeans, salt, and water. Therefore, it provides both…”
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A Study on Arsenic Speciation in Korean Oyster Samples using Ion Chromatography Inductively Coupled Plasma Mass Spectrometry
Published in Bulletin of the Korean Chemical Society (01-01-2015)“…The qualitative and quantitative analysis of the different arsenic species in Korean oyster samples was performed to provide the vital information of food…”
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Hydration products and strength development of calcium hydroxide-based alkali-activated slag mortars
Published in Construction & building materials (01-04-2012)“…▸ This study examines the auxiliary activators in the Ca(OH)2-based AA GGBS binder. ▸ Simple equations to evaluate the strength development of AA GGBS mortar…”
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Two-Step Partial Least Squares-Discriminant Analysis Modeling for Accurate Classification of Edible Sea Salt Products Using Laser-Induced Breakdown Spectroscopy
Published in Applied spectroscopy (01-09-2022)“…Laser-induced breakdown spectroscopy (LIBS) has been widely applied to material classification in various fields, and partial least squares-discriminant…”
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