Disclosed is a method for removing factor XI (FXI) during plasma protein purification, more specifically a method for removing FXI including dialyzing and concentrating a plasma protein fraction II paste containing FXI and a plasma protein, and then removing the FXI using a ceramic-based cation exchange resin. The method for removing factor XI (FXI) can improve removal efficiency of impurities and thrombogenic substances, thereby producing stable plasma proteins with improved quality.

A degasser for at least partially degassing a gas-containing liquid, in particular for a sample separation device, includes a circulation path along which the liquid can be circulated between a liquid accommodation volume and one of an inlet to a consumer unit consuming degassed liquid or a conduit leading to the inlet, a drive unit configured for circulating the liquid in the circulation path, and a filter in the circulation path for filtering particles or debris out of the liquid, wherein the liquid is forced through the filter by the drive unit. The drive unit includes a movable body, in particular a movable piston or a movable membrane, configured for at least partially degassing the liquid by generating a negative pressure in the liquid.

An ion chromatography (IC) suppressor includes a first clamping plate, an intermediate plate, a second clamping plate, a first ion exchange membrane, a second ion exchange membrane, a first electrode and a second electrode. The first clamping plate, the intermediate plate and the second clamping plate are tightly buckled in sequence to compact the first ion exchange membrane between the first clamping plate and the intermediate plate and compact the second ion exchange membrane between the intermediate plate and the second clamping plate. Resin particles are filled between the two ion exchange membranes. An eluent inlet and an eluent outlet are provided respectively at two ends of the intermediate plate, and an accommodating groove is formed at each of a tail end of the eluent inlet and a head end of the eluent outlet. The first clamping plate and the second clamping plate are provided with a sealing lip, respectively.

A device for preparing a liquid sample for a direct injection of a corresponding gaseous sample to a micro-gas chromatograph includes: a fluid space and a gas space, which spaces are separated by a semipermeable separating layer, the fluid space including a supply line for the liquid sample, and the gas space having an outlet connectable with the gas chromatograph. The fluid space and/or the gas space is associated with at least one heating element. The device absorbs a sample volume of approximately 10 μl to 30 μl. The separating layer has a thickness of 10 μl to 300 μl and pores having a size between 0.05 μl and 5 μl.

One object of the present invention is to prevent non-specific metal coordination adsorption of solutes in a sample, while achieving high pressure resistance through the use of a metal column hardware column, and to prevent non-specific adsorption of basic solutes and non-specific hydrophobic adsorption of highly hydrophobic solutes. As a means for achieving the foregoing, proposed is column hardware 1 for liquid chromatography, in which a first membrane 41 containing SiO.sub.2 as a main component is provided on a metallic liquid-contact portion by mobile phase 3 of the column hardware 1 for liquid chromatography, and a second membrane 42 in which silanol groups on the SiO.sub.2 surface are alkylsilylated is provided on a surface 411 of the first membrane 41.

The present invention contemplates a variety of improved techniques including an injection module pairable with an injection port of a gas chromatography device. The injection module can include a cylindrical body, a cap with permeable membrane, a first reservoir for a sample, and a second reservoir for a volume of solvent. An internal membrane can be disposed between the first reservoir and the second reservoir. The injection module can include a circular plunger creating a seal with an inner surface of the cylindrical body of the injection module and configured to expel the sample and solvent by gliding along the inner surface of the cylindrical body. A server can monitor analytes detected by the gas chromatography device and generate recommendations for a user of the gas chromatography device.

A variety of inorganic-organic hybrid materials and various methods for preparing and using the same are described. The hybrid materials are graphene or graphitic materials populated with organic molecules and may have a variety of surface defects, pits or three-dimensional architecture, thereby increasing the surface area of the material. The hybrid materials may take the form of three dimensional graphene nanosheets (3D GNS). If the organic molecules are enantiospecific molecules, the hybrid materials can be used for chiral separation of racemic mixtures.

A device for preparing a liquid sample for a direct injection of a corresponding gaseous sample to a micro-gas chromatograph includes: a fluid space and a gas space, which spaces are separated by a semipermeable separating layer, the fluid space including a supply line for the liquid sample, and the gas space having an outlet connectable with the gas chromatograph. The fluid space and/or the gas space is associated with at least one heating element. The device absorbs a sample volume of approximately 10 l to 30 l. The separating layer has a thickness of 10 l to 300 l and pores having a size between 0.05 l and 5 l.

The present invention discloses a method for initiating a graphene oxide (GO) through reduction by a reductant to controllably release organic compounds, comprising the following steps: (1) mixing GO and a buffer solution; (2) further mixing with a sewage containing organic contaminants; (3) conducting solid-liquid separation, mixing the solid phase and the pure, introducing and N.sub.2; (4) further adding the reductant; (5) conducting sequential batch kinetics experiment. The present invention utilizes the size effect and polarity control of GO to selectively adsorb aromatic organic contaminants in sewage and fully transfer the selectively adsorbed organic contaminants from a large amount of sewage to a small amount of pure water by initiating using the reductant, and no extraction of the organic phase is required, the time for purification is reduced, and the energy consumption for purification is also reduced.

A degasser for at least partially degassing a gas-containing liquid, in particular for a sample separation device, includes a circulation path along which the liquid can be circulated between a liquid accommodation volume and one of an inlet to a consumer unit consuming degassed liquid or a conduit leading to the inlet, a drive unit configured for circulating the liquid in the circulation path, and a filter in the circulation path for filtering particles or debris out of the liquid, wherein the liquid is forced through the filter by the drive unit. The drive unit includes a movable body, in particular a movable piston or a movable membrane, configured for at least partially degassing the liquid by generating a negative pressure in the liquid.