An open-cell foam structure that is used to detect and remove substances from water or air.

A reactor for measurement of spatially resolved profiles in a single catalyst body includes, in the single catalyst body, a channel which accommodates a sampling capillary. The sampling capillary includes a sampling orifice for taking samples of a fluid phase passing the single catalyst body. By shifting the sampling capillary relative to the single catalyst body spatially resolved profiles of a parameter can be obtained.

A reactor for measurement of spatially resolved profiles in a single catalyst body includes, in the single catalyst body, a channel which accommodates a sampling capillary. The sampling capillary includes a sampling orifice for taking samples of a fluid phase passing the single catalyst body. By shifting the sampling capillary relative to the single catalyst body spatially resolved profiles of a parameter can be obtained.

A spatial prediction method of rice stable isotope based on environmental similarity is provided. The method comprises: describing environmental characteristics of the rice stable isotope; measuring an environmental similarity between a site to be predicted and a sample site; measuring a reliability of the sample site; and carrying out a spatial prediction on the rice stable isotope according to the environmental similarity between the site to be predicted and the sample site and the reliability of the sample site. This method can improve the accuracy of the prediction result.

A spatial prediction method of rice stable isotope based on environmental similarity is provided. The method comprises: describing environmental characteristics of the rice stable isotope; measuring an environmental similarity between a site to be predicted and a sample site; measuring a reliability of the sample site; and carrying out a spatial prediction on the rice stable isotope according to the environmental similarity between the site to be predicted and the sample site and the reliability of the sample site. This method can improve the accuracy of the prediction result.

Direct tank liquid sampling device (1) comprising a plurality of inlet lines (2) to supply a liquid of a liquid tank stock (3) to a main collector (7); a pump (4) configured to circulate a collected liquid in the device (1); a packing section (6); a main piping (19, 20, 21) fluidly coupling the main collector (7) and the packing section (6) for supplying the packing section (6) with a portion of said collected liquid; an in-line measuring instrument (5) fluidly coupled to the main piping ((19, 20, 21) in an intermediate position between the main collector (7) and the packing section (6), said in-line measuring instrument (5) being configured for measuring one or more of the following liquid parameters: density, viscosity, temperature, electrical conductivity, or sulphur content.

Direct tank liquid sampling device (1) comprising a plurality of inlet lines (2) to supply a liquid of a liquid tank stock (3) to a main collector (7); a pump (4) configured to circulate a collected liquid in the device (1); a packing section (6); a main piping (19, 20, 21) fluidly coupling the main collector (7) and the packing section (6) for supplying the packing section (6) with a portion of said collected liquid; an in-line measuring instrument (5) fluidly coupled to the main piping ((19, 20, 21) in an intermediate position between the main collector (7) and the packing section (6), said in-line measuring instrument (5) being configured for measuring one or more of the following liquid parameters: density, viscosity, temperature, electrical conductivity, or sulphur content.

A water quality sampler includes a membrane receptacle and at least 7 sample membranes. The membrane receptacle comprises at least 7 membrane cavities disposed on a top surface of the membrane receptacle. Each membrane cavity is configured to hold a sample membrane and the sample membranes are each removably positioned within the membrane cavities and extend at least 1 cm out from the top surface of the membrane receptacle. A bottom of the membrane receptacle comprises a protruding lip that traces a bottom edge of the membrane receptacle in a downward direction, where the protruding lip encompasses a stacking chamber capable of receiving a top end of a second water quality sampler to allow stacking of multiple water quality samplers.

Disclosed herein are methods and system for formation fluid sampling. In at least some embodiments, the method includes pumping formation fluid from a public flow line of a downhole tool via a private flow line into a detachable sample chamber. The method also includes isolating the private flow line from the public flow line. The method also includes collecting measurements of the formation fluid in the private flow line. The method also includes associating the measurements with the detachable sample chamber.

Disclosed herein are methods and system for formation fluid sampling. In at least some embodiments, the method includes pumping formation fluid from a public flow line of a downhole tool via a private flow line into a detachable sample chamber. The method also includes isolating the private flow line from the public flow line. The method also includes collecting measurements of the formation fluid in the private flow line. The method also includes associating the measurements with the detachable sample chamber.