A sampling device comprising a filter to remove particulates greater than about 10 microns, a dryer active to remove water vapor present in the air sample, a chemical scrubber active to remove contaminants from the air sample, a cold trap to capture analytes which is configurable to be put into fluid communication with a spectroscopic analyzer. A method of obtaining and analyzing a sample utilizing the device is also disclosed.

An elemental analysis device includes a heating furnace in which a test sample that is placed in a crucible is heated so that a sample gas is generated from the test sample, an inflow path through which a carrier gas is introduced into the heating furnace, an outflow path through which a mixture gas made up of the carrier gas and the sample gas is led out from the heating furnace, a dust filter that is provided on the outflow path, an analysis mechanism that is provided on the outflow path on a downstream side from the dust filter, and that detects one or a plurality of predetermined components contained in the mixture gas, and a cleaning gas supply mechanism that supplies cleaning gas to the dust filter in an opposite direction from a direction in which the mixture gas is flowing.

A gas sampling apparatus including a housing having a housing wall and a housing opening. The gas sampling apparatus includes a sample system for extracting the gaseous sample, including a sample pipe having an opening enclosed by the housing wall and in fluid communication with the gaseous environment and filter means including a filter for filtering solid particles from the gaseous sample. The filter is enclosed by the housing wall and arranged at the opening. The gas sampling apparatus includes a central purge system to remove aggregates of solid particles deposited on one or more housing surfaces by a gaseous medium, wherein the central purge system includes a purge pipe including an outlet opening directed towards the housing opening and enclosed by the housing wall, wherein the sample system is arranged externally to the central purge system so that the sample pipe is separate from the purge pipe.

A portable sampling device includes a sampling housing at least partially enclosing an inner chamber; at least one pumping element disposed within the inner chamber and configured to facilitate airflow through the device; and at least one gas sensor disposed within the inner chamber and configured to detect and/or characterize one or more gases in the airflow.

A gas detection module includes: a fixed seat, a gas sensor including a detection chamber, and a micro pump. The micro pump includes a pump chamber, a first communication port, and a second communication port. The first and second communication ports are in communication with the pump chamber. The gas sensor and the micro pump are arranged side by side on the fixed seat, the fixed seat is provided with a first and a second fluid port that are both in communication with the outside of the fixed seat, the first fluid port is in communication with the detection chamber, the second fluid port is in communication with the second communication port, a flow channel is further formed on the fixed seat. One end of the flow channel is in communication with the first fluid port, and the other end is in communication with the first communication port.

To uniformly dilute particulate matter contained in a sample gas, a diluter includes an inflow portion, a mixing portion, a discharge portion, a connection portion, and an introduction portion. The inflow portion allows a sample gas to flow in. The mixing portion has an inner diameter larger than that of the inflow portion, and mixes the sample gas with a dilution gas to generate a diluted sample gas. The discharge portion discharges the diluted sample gas. The connection portion has a first tapered part whose inner diameter increases from a side connected to the inflow portion toward a side connected to the mixing portion. The introduction portion introduces the dilution gas into an internal space from a position downstream of the connection between the first tapered part and the inflow portion.

A automated multiple air sampler comprising a pump connected to a manifold, the manifold branching off to a plurality of conduits, each of the conduits connected to a corresponding cassette via a corresponding valve element, each cassette comprising an inlet exposed to the ambient air, an outlet fluidly connected to the conduit, and a filter element between the inlet and the outlet and a controller configured to open and close the valve elements independently from one another. The air sampler permitting sampling ambient air by receiving a indication that the ambient air is to be sampled, the controller operating one of the valve elements, including opening the valve element and closing the valve element, receiving another indication that the ambient air is to be sampled, the controller repeating the step of operating for another one of the valve elements, and tracking the operation of the valve elements.

A method of monitoring a semiconductor fabrication facility and a semiconductor fabrication facility are provided. The method includes collecting an ambient air in a clean room through a plurality of gas lines with their gas inlets arranged at a plurality of sampling positions in the clean room. The method also includes measuring a parameter of the ambient air by a plurality of metrology devices which are connected to the gas lines. At least two of the sampling positions are measured simultaneously. The method further includes issuing a warning when the parameter detected by the metrology devices is outside a range of acceptable values.

A collector device of environmental exposure is provided. This device may be used to collect and, after technical upgrade, monitor environmental exposure in personal and stationary settings. By coupling with advanced genomic analysis and chemical analysis technologies, the device and its accompanying methodology are capable of detecting environmental agents of diverse nature, many of which could pose health risks if going unaware of or uncontrolled. This type of information provides much needed clues to reconstruct and pinpoint the course of disease etiology at both personal and epidemic scales. By combining personal exposome and personal omics analyses, we can recapitulate with the intention to then prescribe treatment plans with unprecedented precision.

An air sampling system is disclosed. The air sampling system includes: an air inflow channel having an air inlet portion at a top end, the air inflow channel being oriented substantially vertically; a fan configured to cause air in a sampling environment to flow into the air inflow channel via the inlet portion; a cooling unit for cooling air in the air inflow channel, the cooling unit disposed downstream of the inlet portion; a collection chamber for collecting liquid water condensed from air in the air inflow channel, the collection chamber being fluidly connected to the air inflow channel; and a sensing unit for determining a volume of liquid in the collection chamber, wherein the cooling unit is controlled in response to signals generated by the sensing unit.