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.

Abstract: A rotary analysis system comprising: a rotary unit including a rotary platform, and having a TLC plate on which movement of a fluid sample and an eluent is controlled by rotational motion of the rotary platform, and aldehydes or ketones in the sample are separated and deployed with the eluent; a shooting unit for capturing an image of components of the sample separated by the rotary unit; a control unit for controlling the rotation conditions of the rotary unit and the capturing conditions of the shooting unit; and an analysis unit for analyzing the image captured by the shooting unit, and the rotary analysis system capable of economically and simply separating and detecting aldehydes or ketones.

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: 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: 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: 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 multilayer capacitor includes a body in which a plurality of internal electrodes are stacked, including a ceramic sintered body; and external electrodes disposed on an external surface of the body and electrically connected to the internal electrodes. The ceramic sintered body includes a liquid pocket.

Abstract: Microbeads capable of controlling the pH of a sample are provided. The microbeads can control the pH of a sample to be equal, similar or close to a target pH without an automated device and the like such as an additional valve system for controlling pH, and thus could be readily applied to fields requiring pH control.

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: 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 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 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 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: 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 multilayer capacitor includes a body in which a plurality of internal electrodes are stacked, including a ceramic sintered body; and external electrodes disposed on an external surface of the body and electrically connected to the internal electrodes. The ceramic sintered body includes a liquid pocket.