The present invention relates to a plastic reference material and a method of manufacturing the same, wherein the concentration of at least one chemical substance is characterized from a signal intensity of the chemical substance and a signal intensity of the isotope-labeled chemical substance of the chemical substance obtained using the pyrolysis GC-MS instrument by weighing a mass of a candidate material for the plastic reference material using a balance, weighing an isotope-labeled chemical substance of the chemical substance using a balance, preparing a mixed solution by dissolving the weighed candidate material for the plastic reference material and the weighed isotope-labeled chemical substance in a solvent, introducing a product resulting from evaporation of the solvent from the mixed solution into a pyrolysis GC-MS instrument, and calculating the concentration of the chemical substance included in the candidate material for the plastic reference material.

The pyrolysis reactor system for the conversion and analysis of organic solid waste is a dual gas-liquid separation system, allowing for the conversion of organic solid waste, as well as analysis of the conversion products. A pyrolysis reactor is provided for converting the organic solid waste into a solid product and a gas-liquid product mixture through pyrolysis. A source of carrier gas is in fluid communication with the pyrolysis reactor for degrading the organic solid waste. A first gas-liquid separator is in fluid communication with the pyrolysis reactor and receives the gas-liquid product mixture therefrom, separating a portion of gas therefrom. A second gas-liquid separator is in fluid communication with the first gas-liquid separator and receives the gas-liquid product mixture therefrom and separates the remainder of the gas therefrom. The remainder of the gas and the separated liquid are each collected separately from one another, in addition to the char.

A gas chromatograph includes: a gas chromatograph body having an interior space thermally isolated from an outside; at least one sample vaporization unit mounted on an upper portion of the gas chromatograph body, the sample vaporization unit having a housing provided therein with a heating space surrounded by a heater and being configured to vaporize a sample injected into the heating space by heat from the heater and introduce the vaporized sample into the gas chromatograph body; and at least one cooling fan mounted on the gas chromatograph body to correspond to the at least one sample vaporization unit to blow cooling air toward the least one sample vaporization unit. A heat insulating member is interposed between the gas chromatograph body and the at least one cooling fan to thermally isolate the at least one cooling fan from the gas chromatograph body.

A gas chromatograph includes first and second sample vaporization units, first and second separation columns, first and second carrier gas suppliers, a column oven that contains the first and second separation columns and has a first heater, first and second detectors, a first auxiliary gas supplier that supplies an auxiliary gas to the first separation column and a controller that executes control by increasing a supply pressure of an auxiliary gas applied by the first auxiliary gas supplier to a pressure higher than a pressure during an analysis of a sample and lowering a supply pressure of a carrier gas applied by the first carrier gas supplier to a pressure lower than a pressure during the analysis of the sample such that the supply pressure of the auxiliary gas is higher than the supply pressure of the carrier gas, and sets a first maintenance switch mode in which the first sample vaporization unit is maintainable.

Detection sensitivity of a single-filament thermal conductivity detector is to be increased. A thermal conductivity detector is a single-filament thermal conductivity detector, and includes a measurement cell, a phase switching mechanism, and a measurement section. The measurement section starts measurement of thermal conductivity of a sample gas after a lapse of a sample gas measurement start time that is set in advance, after a reference phase is switched to a sample phase by the phase switching mechanism, and starts measurement of thermal conductivity of a reference gas after a lapse of a reference gas measurement start time that is set in advance as a length of time different from the sample gas measurement start time, after the sample phase is switched to the reference phase by the phase switching mechanism.

A device for biological sample preparation and analysis is disclosed. The device includes a substrate and a plurality of spaced apart arrays disposed on an upper surface of the substrate. Each array includes a plurality of reaction vessels, each reaction vessel having a hydrophilic surface. A hydrophilic ring surrounds each array. Methods of making and using the device are also disclosed.

The member linking mechanism includes: a first member having a member linking part that has an opening at its distal-end surface; a second member to be linked to the member linking part of the first member; an elastic sealing member sandwiched between the first and second members so as to seal the opening of the distal-end surface of the member linking part; and a linking member for linking the first and second members together. The linking member includes: a linking member body configured to hold an end part, of the second member, adjacent to the first member; and an elastic deformation part provided to the linking member body, the linking member links the first and second members together by pressing, with an elastic force of the elastic deformation part, the first and second members in a direction in which the first and second members come close to each other.

An opening sealing structure is provided with a housing, a step portion, a seal cap, an elastic sealing member, and a cap fixture. The housing has a cap mounting portion having a a cylindrical shape. The step portion is provided on the outer peripheral surface of the cap mounting portion and has a side surface facing the base end side of the cap mounting portion. The side surface of the step portion is inclined along the circumferential direction of the cap mounting portion from the tip end side of the cap mounting portion to the base end side and its inclination angle is smaller on the base end side of the cap mounting portion than on the tip end side. The cap fixture has a cap holding portion movably engaged with the seal cap in a circumferential direction of its outer peripheral surface and an elastic portion connected to the cap holding portion. The elastic portion is provided with a protrusion which engages the side surface of the step portion.

A sample vaporization unit for vaporizing a sample injected from a syringe needle while supplying a carrier gas into a column is provided with a pipe, a heat conductive member, and a heater. The column is inserted into the pipe. The heat conductive member is provided along the outer circumference of the pipe. The heater is provided along the outer circumference of the heat conductive member. The heat conductive member is in line contact with the pipe along the axial direction in which the column extends at a plurality of circumferential locations on the outer circumferential surface of the pipe.

Herein is disclosed an inlet liner for use within an injection port of a capillary gas chromatograph. The inlet liner can include a first fused quartz tube and a second fused quartz tube aligned along a common longitudinal axis; the outside surface of the first fused quartz tube affixed to the inside surface of the second fused quartz tube. In certain instances, the tubers are affixed at two points along the longitudinal axis thereby defining a hermetically sealed volume between the outside surface of the first quartz tube and the inside surface of the second fused quartz tube, wherein the hermetically sealed volume entrains a reactive surface.