A method for extracting an analyte from a solid sample is described. The sample is sealed in a porous membrane bag, which is sonicated in an organic solvent. An extract of the analyte forms in the bag and diffuses into the organic solvent. The organic solvent containing the extract may then be concentrated and analyzed for an analyte with gas chromatography-mass spectrometry. The method does not the use of a solid sorbent material, and does not require a step of centrifuging or filtering.

Systems for extracting solute from a source material are shown and described. Each of the systems includes: a solvent source container configured to store a cooled solvent, a canister configured to contain the source material and receive solvent to produce an extract solution, and one or more extract containers in communication configured to receive and distill the extract solution, the solvent source container being configured to receive a post-extraction portion of the solvent. In some examples, the one or more extract containers are first and second extract containers that are each selectively coupleable to the canister and are selectively removable for storage of the extract mixture or the solute. In some other examples, the system further includes a cooling mechanism coupled to the solvent source container for cooling the recycled solvent within the solvent collection container.

In embodiments, a packing material for supported liquid extraction has a sorbent media that includes synthetic silica particles. In embodiments, the synthetic silica particles can have physical properties relating to one or more of particle surface area, shape, size, or porosity. In one embodiment, synthetic silica particles have a surface area less than about 30 m.sup.2/g. In another embodiment, the synthetic silica particles have an approximately uniform particle shape. In further examples, synthetic silica particles have a particle size in a range of about 30-150 μm inclusive or greater than about 200 μm. In another embodiment, synthetic silica particles are arranged to have a pore size greater than about 500 Angstroms. In an embodiment, an apparatus for supported liquid extraction includes a container and a sorbent media that includes synthetic silica particles. In a further embodiment, a method for extracting target analytes through supported liquid extraction is provided.

An apparatus for extracting essential oils and oleoresins from a plant material is disclosed. The apparatus comprises a circulation pump, a discharging pump, an extraction module, a reservoir, a first evaporator, and a first condenser. The discharge pump is fluidly connected to the circulation pump. The extraction module includes at least one extraction vessel. The reservoir is configured to store a solvent containing a C1 to C4 fluorinated hydrocarbon. In a short loop circulation mode the discharge pump pumps a solution comprising the solvent and one or more active components of the plant material dissolved therein from the bottom of the at least one extraction vessel, passing through the circulation pump, and then back to the top of the at least one extraction vessel.

A method for treating water in a spa or a hot tub includes, for example, suspending a water treatment dispenser from an upper end of a filter cartridge disposed in a skimmer of the spa or the hot tub. The dispenser includes a water treatment material. A supply of water is passed from the spa or the hot tub into the skimmer and through the filter cartridge so that the dispenser suspended in the filtered water in the filter cartridge is operable to dispense the water treatment material from the dispenser, and a supply of treated filtered water from the filter cartridge is returned to the spa or the hot tub. A cover, for example, may be employed when the dispenser is not used.

The present invention provides a solid phase extraction method using a micro device having a dam forming portion including a dam, the solid phase extraction method comprising the steps of: (i) injecting a solvent and a filler into the micro device, moving the solvent to the dam forming portion, the dam allowing the solvent to flow therethrough and preventing the filler from passing therethrough, and adsorbing a material to be separated onto the filler in the dam forming portion; and (ii) extracting, from the filler, the adsorbed material, wherein the micro device is rotated with respect to a central axis during one of steps (i) and (ii), and the rotation of the micro device is performed at an angular velocity defined by equation 1.

An extraction device that can include a first solvent chamber, an extraction chamber, a collection chamber and a second solvent chamber. The various chambers of the extraction device are connected in fluid communication with one or more chambers of the device through one or more connectors. A connector can include one or more flow control elements that control flow of fluid from one chamber to one or more other connected chambers. Additionally, the various chambers of the extraction device can be arranged in multiple configurations and connections between the chambers.

A plant oil extraction system may include a reservoir tank, an agitator tank, a boiler tank, a condenser unit, and a vacuum chamber. The reservoir tank may hold a solvent to be used in the system process. The solvent may be deposited into the reservoir tank through a fill port. A pump may transfers the solvent from the reservoir tank to the agitator tank. The agitator tank may hold dry plant matter. The agitator tank may separate oil from the plant matter by use of solvent where the mixture of solvent and plant oil drains to the boiler tank. The boiler tank comprise of a tank stack (condenser) used for separating extracted plant oil from the solvent by boiling off the solvent and a vacuum chamber used to extract residual solvent from the oil.

Apparatus for distributing a solid, gel, powder, granular, liquid or viscous liquid test substance in an extraction fluid comprises: a) a flow cell for holding the test substance comprising an extraction chamber of uniform cross-sectional area, a grinding surface, an extraction fluid inlet and an extract outlet; b) a grinding head disposed within the extraction chamber and adapted to reciprocate therein; and c) a recirculating pump for driving extraction fluid: (i) into the flow cell via the extraction fluid inlet; (ii) through the extraction chamber; and (iii) back to the flow cell via the extract outlet.

A drug decocting container comprises a cover body (1), an inner-layer container, and an outer-layer container. The inner-layer container is em-bedded in the inner part of the outer-layer container, the strength of the outer-layer container is larger than that of the inner-layer container, and the outer-layer container supports the inner-layer container and controls deformation of the inner-layer container. The cover body (1) is connected with the inner-layer container in a sealing way to form a sealed cavity, and a liquid inlet and a liquid outlet are provided on the sealed cavity. An inner pipe (3) is supported by a high-strength outer pipe (2) in the drug decocting container, such that the wall thickness of the inner pipe (3) can be thin, thereby reducing costs of the inner pipe (3), providing a condition for disposable use of the inner pipe (3), and preventing drugs from influencing each other by residues in the inner pipe (3) so as to affect the quality of a beverage while decocting different drugs. Decoction pieces are separated by multi-stage baffle plates (4), thereby reducing pressure of the decoction pieces on a filter piece (5), and increasing the flowing speed of extract liquor.