Abstract:
A molecular detection apparatus according to an arrangement includes a detector and a discriminator. The detector includes a plurality of detection cells, where the plurality of detection cells include at least an organic probe containing a cyano group or a nitro group as a neighboring group of a reactive group. The discriminator discriminates a substance to be detected by signal patterns of the plurality of detection cells.
Abstract:
A molecular detection apparatus includes: a collection unit collecting detection target gas containing molecules (2) to be detected; a detector (20) including detection cells (201) having an organic probe (22) provided at a sensor unit (21), for example a graphene (26) field-effect transistor, the organic probe capturing the collected molecule to be detected; and a discriminator discriminating the molecule to be detected by a detection signal generated by the molecule being captured by the organic probe. The detection cell has the organic probe containing a phosphonic acid structure or phosphoric acid structure. The organic probe comprises a polycyclic aromatic hydrocarbon group as base portion, a connecting portion and a head portion containing thze phosphonic or phosphoric acid structure.
Abstract:
A molecular detection apparatus according to an arrangement includes: a distributor which ionizes a target containing substances to be detected, applies voltage to ionized substances, and extracts the substances to be detected according to a time-of-flight based on the speed; a detector which detects the substance to be detected dropped from the distributor; and a discriminator which discriminates the substance to be detected. The detector includes: a plurality of detection units including field effect transistors using graphene layers; and a plurality of organic probes which are provided on the graphene layers, and at least some of which have different bond strengths with the substances to be detected. The substance to be detected is discriminated depending on a signal pattern based on intensity differences of the detection signals generated by differences in the bond strengths between the organic probes and the substances to be detected.
Abstract:
A method for the extraction of hexavalent chromium, by which hexavalent chromium is extracted from a polymer material with a high recovery, is provided. The method for extracting hexavalent chromium includes preparing a liquid sample by adding a fatty acid to a polymer material, adding water or an aqueous alkali solution to this sample, and dissolving hexavalent chromium contained in the sample in the water or the aqueous alkali solution. The fatty acid preferably has a carbon number of 11 or greater. The concentration of the aqueous alkali solution is preferably equal to or higher than 0.1 mol/L and equal to or lower than 1.0 mol/L.
Abstract:
An electrode of an embodiment includes a porous titanium support and a catalyst layer for electrolysis provided on the porous titanium support and stacked sheet layers and gap layers alternately. A first covering layer including titanium oxide is provided on the porous titanium support on the catalyst layer side. A second covering layer including titanium oxide is provided on the porous titanium support on an opposite side of the catalyst layer. An average thickness of the first covering layer is denoted as D1. An average thickness of the second covering layer is denoted as D2. D1 and D2 satisfies 1 [nm] ≤ D2-D1 ≤ 20 [nm].
Abstract:
A molecular detection apparatus, comprising: a chamber; a light source provided in the chamber and configured to emit light; a detector including at least one sensor and configured to generate a first detection data and a second detection data, the sensor being provided in the chamber and being configured to capture molecules of target molecules, the first detection data corresponding to the number of captured molecules per predetermined time under a first emission condition of the light, and the second detection data corresponding to the number of captured molecules per predetermined time under a second emission condition of the light; and a discriminator to discriminate the target molecules using the first and second detection data.
Abstract:
A molecular detection apparatus according to an arrangement includes: a collection unit collecting a detection target gas containing a molecule to be detected; a detector including a detection cell that has an organic probe provided in a sensor unit, for example a graphene field effect transistor (GFET), the organic probe capturing the collected molecule, and a discriminator discriminating the molecule by a detection signal generated by the molecule being captured by the organic probe of the detection cell. The detection cell has the organic probe including a dicyanovinyl structure (for example ORGANIC COMPOUND 2A) or a coumarin (for example ORGANIC COMPOUND 2B) structure.
Abstract:
A molecular detection apparatus (1) according to an arrangement includes: a collection unit (10) which collects detection target gases (3) each containing molecule (2) to be detected; a concentration adjusting unit (20) which dilutes and/or concentrates the molecule, and generates a plurality of detection target gases having different concentrations of the molecule (2); a detection unit (30) to which the plurality of detection target gases (3) are sequentially introduced, and which includes a plurality of detection cells (301) each outputting detection signals based on the concentrations of the molecule (2) in the plurality of detection target gases (3); and a discrimination unit (40) which discriminates the molecule (2) by change tendencies of the detection signals based on the concentrations of the molecule (2) output. Discrimination of gases is performed by using the plurality of detection cells (301) where each cell has a different dependency of cell response to gas concentration and the target detection gas (3) is successively interrogated by the the detection cells (301) after successive dilutions or concentrations of the target detection gas.