Abstract: Provided are a multilayer ceramic capacitor and a method of fabricating the same. The multilayer ceramic capacitor comprises a capacitor body including dielectric layers and internal electrode layers; and an external electrode disposed outside the capacitor body, wherein the dielectric layer includes a plurality of dielectric grains and grain boundaries located between the adjacent dielectric grains, the grain boundary includes a barium titanate-based primary component containing barium (Ba) and titanium (Ti), and inorganic element including silicon (Si), and a standard deviation of atom % of the inorganic element to the total amount of components of the grain boundary is 0.20 to 0.80, and the standard deviation is obtained as the square root of the average of the squares of the deviations.

Abstract: A multilayer ceramic capacitor includes: a capacitor body including a dielectric layer and an internal electrode layer; and an external electrode disposed on the capacitor body. The capacitor body includes at least one lost portion defined as a region in which continuity of the internal electrode layer is disconnected, and the lost portion includes a Mg concentrated region including magnesium (Mg) as a main element. The dielectric layer includes an interface adjacent region defined to be a region from an interface of the dielectric layer and the internal electrode layer to a depth surface of 80 nm to 100 nm into the dielectric layer, and the interface adjacent region includes magnesium (Mg). The magnesium (Mg) included in the interface adjacent region of the dielectric layer has a lower atom % content than the magnesium (Mg) included in the Mg concentrated region of the lost portion.

Abstract: The present invention relates to a high-speed screening and analysis system for reaction optimization. More specifically, the present invention provides a system capable of analyzing samples at low cost through control of fluids using hydrophilic plate-like material (for example, paper), and of analyzing chemical reactions of a sample with a plurality of materials simultaneously, thereby allowing samples to be analyzed rapidly.

Abstract: A method for simulataneously separating and detecting aldehydes or ketones from a plurality of samples containing the samein a simple and rapid manner by using a rotary microdevice capable of integrating derivatization and TLC separation of aldehydes and ketones, and the method providing reliable TLC separation, control of moving speed of an eluent on a TLC plate, and improved TLC resolution.

Abstract: A microdevice for detecting aldehydes or ketones by utilizing a rotary platform, the microdevice comprising a disc-shaped rotary platform and a microfluidic structure disposed on the rotary platform, and the microfluidic structure comprising a sample storage part, an eluent storage part, a separation part, a first microfluid flow channel, a second microfluid flow channel, and an absorption pad.

Abstract: The present invention relates to a device and a method for qualitative and quantitative analysis of heavy metals and more particularly provides a device and a method for qualitative and quantitative analysis of heavy metals utilizing a rotary disc system.

Abstract: The present invention relates to a device and a method for qualitative and quantitative analysis of heavy metals and more particularly provides a device and a method for qualitative and quantitative analysis of heavy metals utilizing a rotary disc system.

Abstract: The present invention relates to a device and a method for qualitative and quantitative analysis of heavy metals and more particularly provides a device and a method for qualitative and quantitative analysis of heavy metals utilizing a rotary disc system.

Abstract: A system for separating and concentrating ionic compounds in a sample is provided herein. In some embodiments, a system includes at least one sample separation device, a flexible holder having a plurality of slots, wherein each slot is configured to have a sample separation device inserted therein, wherein the at least one sample separation device is inserted into a slot of the flexible holder; and an electrode for applying a voltage to the device, wherein the at least one sample separation device comprises a separation portion, a first storage portion, and a second storage portion, wherein the first and second storage portions are positioned on opposing sides of the separation portion, wherein the separation portion is folded at a predetermined interval to form two or more discrete base units.

Abstract: The present specification relates to a composition including two or more compounds represented by Chemical Formula 1 and having a different number of deuterium substitution, wherein, in the composition, the number of deuterium of an isotope having a highest isotope content among each isotope content for each mass number of the two or more compounds having a different number of deuterium substitution is 12 or greater, and an electronic device and an organic light emitting device including the same.

Abstract: A qualitative and quantitative heavy metal analysis device and, more particularly, a qualitative and quantitative heavy metal analysis device implemented by a rotary platform are provided. The rotary platform device includes a main injection part which is positioned near a rotating shaft of a rotary platform, wherein the main injection part is configured to receive a fluid sample containing heavy metals, a pH adjusting part configured to adjust pH of the fluid sample, a detecting part coated with a chelating agent configured to initiate a color reaction with heavy metals in the fluid sample by spreading the pH-adjusted fluid sample into the detecting part, and a ruler for measuring a spreading distance of the color reaction, wherein the fluid sample moves from the main injection part through the pH adjusting part to the detecting part by a rotation of the rotary platform device.

Abstract: The present invention relates to a device and a method for qualitative and quantitative analysis of heavy metals and more particularly provides a device and a method for qualitative and quantitative analysis of heavy metals utilizing a rotary disc system.

Abstract: The present specification relates to a method for analyzing a deuterated compound by chromatography, and manufacturing an organic light emitting device using a deuterated compound selected based on the analyzed data.

Abstract: The present invention relates to a method for simultaneously qualitatively and quantitatively analyzing compounds of aldehydes and/or ketones in a short time by using an optimal TLC plate, a proportion of a developing solvent, a sample amount, etc., and can provide an analysis result equivalent to a conventional analysis result in a shorter time by providing the most optimal conditions when using the TLC method.

Abstract: A method for purification of a sulfatase using metal chelating chromatography without using tags such as His-tag, etc. is disclosed. An embodiment provides a method for purifying a sulfatase including the steps of: (a) providing a sulfatase-containing solution comprising one or a plurality of impurities; (b) performing a first chromatographic separation of the sulfatase-containing solution using a metal affinity chromatography resin; (c) performing a second chromatographic separation using a cation exchange chromatography resin; and (d) performing a final chromatographic separation using an anion exchange chromatography resin, wherein the impurities are removed thereby.

Abstract: A dielectric powder includes a core-shell structure including a core region formed in an inner portion thereof and a shell region covering the core region. The core region includes barium titanate (BaTiO3) doped with a metal oxide, and the shell region is formed of a ferroelectric material.

Abstract: A device and system for detecting aldehydes or ketones and, more particularly, a device and system, for detecting aldehydes or ketones, utilized in a rotating platform are provided.

Abstract: The present disclosure relates to a device capable of adjusting the pH of a sample and provides a device comprising microbeads capable of adjusting the pH of a sample to a predetermined value. The device comprises microbeads enabling adjustment to different pH values in each of a plurality of channels, and enables adjustment of the pH of the sample to a plurality of different pH values simultaneously upon injection of the sample.

Abstract: The present invention relates to a method for producing test pieces in which the thickness of the samples of homogeneous water-insoluble material is uniform, and to a method for quantitative analysis of water-insoluble material by analyzing such test pieces using MALDI mass spectrometry. Specifically, the test pieces can be produced by: adding a volatile solvent to a mixture of water-insoluble material and matrix; placing, in a pellet cup made of water-soluble material, and pressing, with even pressure, the sample obtained by mixing the mixture of water-insoluble material and matrix until the solvent has evaporated; and melting the pellet cup with water.

Abstract: A method for simulataneously separating and detecting aldehydes or ketones from a plurality of samples containing the samein a simple and rapid manner by using a rotary microdevice capable of integrating derivatization and TLC separation of aldehydes and ketones, and the method providing reliable TLC separation, control of moving speed of an eluent on a TLC plate, and improved TLC resolution.