An ultra-deep reservoir stratified water sample and sediment core integrated artificial intelligence sampling device, comprising a sampling device main chamber, an attitude balance sensor, a propeller, a balance base, and a sampler body, wherein the attitude balance sensor and the sampler body are disposed inside the sampling device main chamber; the propeller is disposed outside the sampling device main chamber; and the balance base is located at a bottom end of the sampling device main chamber. The sampling device of the present invention is an intelligent sampling device integrating high-definition underwater topography observation, undisturbed sediment core collection, vertical stratified accurate sampling of water bodies, and real-time in-situ monitoring of key physical and chemical parameters, and can be flexibly applied to deep and shallow water environments under complicated conditions.

A fluid evaluation device for analyzing a fluid content within a container includes first and second fluid sampling conduits passing laterally into the container and respectively extending to first and second depths within fluid stored in the container, a common fluid conduit to which the first and second fluid sampling conduits extend for receiving fluid flowing out of the container through either of the first or second sampling conduits, and an optical device positioned along the common fluid conduit and including a viewing window for observing fluid flowing therethrough from the common fluid conduit.

Disclosed is a method for detection of air-water exchange flux of organic contaminants, which passively and continuously collects contaminants at consecutive points close to a sea surface microlayer, acquires the freely dissolved concentration at the consecutive points of the air and water body close to a water body surface microlayer, and obtains the air-water exchange flux of the contaminants through fitting a self-developed model, wherein the consecutive points include a plurality of sampling points along a height direction above an air-water interface and a plurality of sampling points along a depth direction below the air-water interface. The present invention can be applied to determine the air-water body exchange flux of organic contaminants.

Disclosed is a method for detection of air-water exchange flux of organic contaminants, which passively and continuously collects contaminants at consecutive points close to a sea surface microlayer, acquires the freely dissolved concentration at the consecutive points of the air and water body close to a water body surface microlayer, and obtains the air-water exchange flux of the contaminants through fitting a self-developed model, wherein the consecutive points include a plurality of sampling points along a height direction above an air-water interface and a plurality of sampling points along a depth direction below the air-water interface. The present invention can be applied to determine the air-water body exchange flux of organic contaminants.

A fluid evaluation device for analyzing a fluid content within a container includes first and second fluid sampling conduits passing laterally into the container and respectively extending to first and second depths within fluid stored in the container, a common fluid conduit to which the first and second fluid sampling conduits extend for receiving fluid flowing out of the container through either of the first or second sampling conduits, and an optical device positioned along the common fluid conduit and including a viewing window for observing fluid flowing therethrough from the common fluid conduit.

A field apparatus (also referred to as a biosampler) is configured to automatically capture multiple samples of an aqueous medium (for example, water from a lake) and process same to preserve unstable analytes in the field. In this way, a set of samples from the aqueous medium can, for example, be captured at multiple points in time, processed with a biopreservative to preserve unstable analytes (for example, RNA) and then later collected for further analysis. Alternatively, multiple samples of the aqueous medium can be collected and preserved at one moment.

A field apparatus (also referred to as a biosampler) is configured to automatically capture multiple samples of an aqueous medium (for example, water from a lake) and process same to preserve unstable analytes in the field. In this way, a set of samples from the aqueous medium can, for example, be captured at multiple points in time, processed with a biopreservative to preserve unstable analytes (for example, RNA) and then later collected for further analysis. Alternatively, multiple samples of the aqueous medium can be collected and preserved at one moment.

An apparatus for the collection of multiple samples of a fluid stream. The apparatus includes a plurality fluid collection containers arranged to receive separate portions of the fluid stream in a temporal sequence and a sealing mechanism provided on each fluid collection container configured to close the fluid collection containers when filled by a portion of the fluid stream and to cause the fluid stream to flow to the next fluid collection container in the sequence. The fluid collection containers separately collect at least a beginning portion of the fluid stream, a mid-portion of the fluid stream and an end-portion of the fluid stream. Each of the fluid collection containers may be detachably connected to tubing held in a housing having a sloped upper surface for receiving the fluid stream and an inlet for directing the fluid stream to the tubing. The housing may be a fluid collection cup.

An apparatus for the collection of multiple samples of a fluid stream. The apparatus includes a plurality fluid collection containers arranged to receive separate portions of the fluid stream in a temporal sequence and a sealing mechanism provided on each fluid collection container configured to close the fluid collection containers when filled by a portion of the fluid stream and to cause the fluid stream to flow to the next fluid collection container in the sequence. The fluid collection containers separately collect at least a beginning portion of the fluid stream, a mid-portion of the fluid stream and an end-portion of the fluid stream. Each of the fluid collection containers may be detachably connected to tubing held in a housing having a sloped upper surface for receiving the fluid stream and an inlet for directing the fluid stream to the tubing. The housing may be a fluid collection cup.

A water sampling system having multiple collection channels configured to collect multiple samples of a fluid as the fluid flow rate and level changes with respect to time. The system is designed to connect to and sample urban storm water runoff outfalls, pipes and drains.