An apparatus and a method for isolating and/or preparing particles are provided.

A soil fractionation system can include a plurality of sample racks propelled by a drive system. Each sample rack can include a sample tube for holding a soil sample and a filter cup for receiving an extracted fraction of the soil sample. An extractor module of the fractionation system can include an extractor assembly and a filter assembly. A control system can control the relative positioning of the plurality of sample racks via the drive system, the relative movement between the extractor assembly and the sample tube, and the relative movement between the filter assembly and the filter cup.

An inline filter housing with a biodegradable, hydrophilic material that operates in conjunction with a field sampling apparatus to both concentrate field sampled environmental DNA particles from water samples and to automatically preserve the captured DNA via desiccation, thus avoiding filter membrane transfer steps, chemicals or cold storage preservation requirements. The hydrophilic filter housing is capable of rapidly preserving the field sampled environmental DNA captured on the filter membrane at ambient field temperatures.

The disclosure relates to a container for filtering a suspension which comprises a lid and a vessel. The container comprises a filter that divides an interior space of the container into a first compartment and a second compartment. The lid comprises a first access and a second access. The first access is connected to the first compartment, and the second access is connected to the second compartment.

A filter module (10) has a housing (12) which is subdivided by a membrane filter (14) into an inlet chamber (16), which is connected to an inlet connecting piece (22) arranged rigidly on the housing (12), and an outlet chamber (18), which has a filtrate outlet (20). The inlet connecting piece has two connectors, specifically a first connector (26) and a second connector (28), which connect selectively and fluidically to the inlet chamber with a 3-way valve (24) integrated into the inlet connecting piece. The valve has a first entry, which is connected to the first connector, a second entry, which is connected to the second connector, and an exit, which is connected to the inlet chamber. The first connector is configured as an adapter for outwardly sealed coupling of a culture medium bottle (30), which coupling permits a gravity-driven exchange of liquid with the first entry of the valve.

There is provided an apparatus for collecting/isolating cells from a sample including the target cells comprising: a membrane adapted to retain the target cells thereon, a first port in fluid communication with the membrane provided towards a first side of the membrane, a second port in fluid communication with the membrane provided towards a second side of the membrane, a sample container having at least one wall defining an interior space suitable to house the sample, provided on the first side of the membrane, a cell collection container provided towards the first side of the membrane, a filtrate container provided towards the second side of the membrane, a backwash fluid container provided towards the second side of the membrane, wherein the first port is movable between a first position wherein the first port is in fluid communication with the sample container, and a second position wherein the first port is in fluid communication with the cell collection container; and
wherein the second port is movable between a first position wherein the second port is in fluid communication with the filtrate container, and a second position wherein the second port is in fluid communication with the backwash fluid container.

The present invention relates to a detection method for determining chloride ions content in sea sand, which is performed in the steps as follows: drying sea sand to a constant weight, adding the dried sea sand to boiling deionized water, and fully stirring, standing and filtering the deionized water to obtain washed sea sand and a washed filtrate; then grinding the washed sea sand into powder, adding the powder into deionized water, fully stirring and filtering the deionized water to obtain a powder filtrate; next, taking half of the washed filtrate and half of the powder filtrate, mixing and stirring the two to prepare a mixed filtrate; and measuring the chloride ions content in each of the washed filtrate, the powder filtrate and the mixed filtrate by using a silver nitrate titration method; finally, analyzing and correcting detection results to obtain the chloride ions content in the sea sand. The present invention promotes the release of the chloride ions in the tight-wrapping surface films and fissures of the sea sand to a great extent, providing a scientific guarantee for the authenticity of the detection results on the chloride ions content in the sea sand; and realizes the quick dissolution of the chloride ions, thereby greatly reducing the detection time and significantly increasing the accuracy of the detection results.

A precipitate and/or an inclusion in a metal material are extracted by electrolysis using an electrolyte solution. The electrolyte solution contains an adsorbent physically adsorbed and/or chemically adsorbed to any metal other than a matrix metal of the metal material. The extracted precipitate and/or inclusion can be quantitatively analyzed with high accuracy.

A sensor apparatus for detecting a heavy metal in a sample.

Provided are systems and methods of sample preparation and analyte detection.