A theta pipette is provided having an outer barrel defining a cavity. A first inner barrel may be positioned within the cavity of the outer barrel and may contain an aqueous solution. An electrode may be inserted into the acidified aqueous solution. A second inner barrel may be positioned within the cavity of the outer barrel and may contain an immiscible phase solution. The second inner barrel may be positioned adjacent the first inner barrel.

An automated multiple-sample processor for fluid samples includes a plurality of piston pumps which have a sample opening, a cylindrical housing and an axially displaceable piston and which are removably mounted in a support frame. The two spiral springs are both designed either as extension springs or as compression springs. In the case the two spiral springs are provided as the extension springs with a release lever in a first installation position, the triggering of the release lever results in the piston being pushed into the cylindrical housing. In the case the two spiral springs are provided as the compression springs with the release lever in a second installation position, which is rotated by 180 with respect to the first installation position, the triggering of the release lever results in the piston being pushed out of the cylindrical housing.

A filtration and testing device integral thereon, for simultaneously performing cleaning of fluid used in the oil and natural gas industry for completions, workovers, and commissioning of wells while simultaneously pressure testing of two separate groups of pressurized equipment using fluid cleaned by the filtration and testing device. A support structure has a cleaning cycle assembly and a pressure testing cycle assembly connected in parallel to a controller for cleaning fluid and regulating pressure by comparing fluid pressures to preset limits. The controller regulates cleaning of first and second dirty hydraulic fluids and regulates pressure of cleaned hydraulic fluids and secondary fluids for pressure testing of the two different groups of pressurized equipment simultaneously.

The present application is directed to a sampling system for sampling a fluid from a vessel, where the sampling system includes a sterile dispenser assembly operatively connected to the vessel, the sterile dispenser assembly including a valve operatively connected to the vessel, a membrane, and a needle, and a detachable sterile sampling container assembly operatively connected to the sterile dispenser assembly, the detachable sterile sampling container assembly including a sampling container, a membrane attached to the sampling container, and a sampling container housing enclosing the sampling container, where the sampling container housing includes a compressible portion having a deflated configuration and an expanded configuration.

A tube segment sampler system (10) for withdrawing a fluid sample from a tube segment (100), the sampler (10) having a first tube piercing member (28) for piercing the tube segment at a first location and a second tube piercing member (28) for piercing the tube segment at a second location so as to allow air to be drawn into the tube segment (100) through one of the openings made by one of the piercing members (28) while fluid is withdrawn through the other of the openings.

A system may include a needle and source providing fluid to the needle. The system may include a sheath defining an opening. The needle may be within the sheath. The needle and sheath may define a cavity. The system may include a gasket movable between open and closed positions. The gasket may fluidly seal an end of the sheath so that the fluid exits the needle into the cavity and exits via the opening. The system may include a bottle including a septum proximate the end of the sheath. The system may include a movement system that may displace the gasket to permit fluid to exit the cavity via the end of the sheath and displace the sheath or needle such that the needle extends beyond the sheath. The movement system may displace the needle or bottle such that the needle penetrates the septum and fluid exits into the bottle.

A filtration and testing device integral thereon, for simultaneously performing cleaning of fluid used in the oil and natural gas industry for completions, workovers, and commissioning of wells while simultaneously pressure testing of two separate groups of pressurized equipment using fluid cleaned by the filtration and testing device. A support structure has a cleaning cycle assembly and a pressure testing cycle assembly connected in parallel to a controller for cleaning fluid and regulating pressure by comparing fluid pressures to preset limits. The controller regulates cleaning of first and second dirty hydraulic fluids and regulates pressure of cleaned hydraulic fluids and secondary fluids for pressure testing of the two different groups of pressurized equipment simultaneously.

A method of fluid sampling and device thereof, the device and method enabling the user to safely and efficiently collect fluid samples, including groundwater samples from a monitoring well, by providing a fluid sampling device that includes a container having a sampling surface and tube housing that securely holds tubing, sample containers, and other equipment and provides a drainage area so that the user may focus on collecting unadulterated samples while any fluid discharges and incidental spillage are safely captured in the container.

An automated multiple-sample processor for fluid samples includes a plurality of piston pumps which have a sample opening, a cylindrical housing and an axially displaceable piston and which are removably mounted in a support frame. The two spiral springs are both designed either as extension springs or as compression springs. In the case the two spiral springs are provided as the extension springs with a release lever in a first installation position, the triggering of the release lever results in the piston being pushed into the cylindrical housing. In the case the two spiral springs are provided as the compression springs with the release lever in a second installation position, which is rotated by 180 with respect to the first installation position, the triggering of the release lever results in the piston being pushed out of the cylindrical housing.

The disclosure relates to a syringe assembly and a syringing method of using the same. The syringe assembly comprises an ultrasonic element, a guide tube and a syringe. The ultrasonic element is used to generate an ultrasonic signal and receive a reflection of the ultrasonic signal. The guide tube comprises a first connecting terminal and a second connecting terminal. The syringe and the guide tube are connected with each other via the second connecting terminal. The syringe assembly according to the present disclosure is able to perform sampling, liquid level detection, clog detection, and the liquid volume detection.