A device for forming a liquid treatment apparatus includes a main part, a receiving part including a cavity for receiving a connecting head of a replaceable liquid treatment cartridge having at least one port in liquid communication with an interior of the liquid treatment cartridge. The receiving part is journalled for movement between a first and a second position with respect to the main part. The head is insertable into and retractable from the cavity in the first position. The liquid treatment cartridge is lockable to the device by at least moving the receiving part with the inserted connecting head into the second position. The movement includes a component corresponding to an intrinsic rotation in a plane parallel to a direction of insertion. The movement further includes at least a component corresponding to a displacement of the receiving part relative to the main part.

Method for reducing concentration of iron ions in a trivalent chromium electroplating bath, including: (i) providing the trivalent chromium electroplating bath including trivalent chromium ions, and iron ions, (ii) subjecting at least a portion of the bath to air agitation, to obtain an air-agitated portion of the bath, (iii) contacting the air-agitated portion with an ion exchange resin, to obtain a resin-treated portion of the bath, and (iv) returning the resin-treated portion of the bath to the trivalent chromium electroplating bath,
provided that the bath provided in step (i) was or is utilized for electrodepositing chromium on a substrate applying a cathodic current density of 18 A/dm.sup.2 or more, after step (iii), iron ions in the resin-treated portion have a lower concentration than in the air-agitated portion, and after step (iv), iron ions in the bath have a concentration below 50 mg/L.

The present disclosure relates to multistep chromatographic methods for preparing extracellular vesicles (EVs). The methods were demonstrated to be effective in preparing highquality EVs in a large scale. The methods enable preparation of EVs for therapeutic and diagnostic applications, and isolation and/or sub-fractionation of EVs with desired properties for specific use.

The present invention relates to a method for the separation and purification of glycoforms with an ion exchange separation material with amino-acid based endgroups.

The present disclosure relates to an improved method for producing allulose and, more particularly, to a method for preparing a fructose-containing raw material solution by using raw sugar as a raw substrate used in the production process.

An apparatus, system, and method for removing impurities from a non-aqueous electrolyte used in an electrochemical cell. The apparatus includes a vessel having one or more chambers with an inlet and an outlet configured to allow the flow of the electrolyte through the one or more chambers; and an inorganic scavenging agent located within the one or more chambers. The inorganic scavenging agent includes one or more types of zeolite particles, at least one type of absorbent filler particles, or a combination of the zeolite and absorbent filler particles. The inorganic scavenging agent absorbs one or more of moisture, free transition metal ions, or hydrogen fluoride (HF) that is present as impurities in the non-aqueous electrolyte.

A method for strontium isotope analysis of picogram-level samples using highly sensitive silicotungstic acid emitter is presented by a thermal ionization mass spectrometry. The emitter has merits of extremely high sensitivity, low cost, simple operation, etc. It is an important innovation of the strontium isotope analysis of the picogram-level samples. Compared with a sample consumption of 1-50 ng of conventional emitter, the present invention only needs 30-200 pg to obtain satisfying measurement accuracy. The present invention greatly improves test sensitivity, and has broad application prospects in future.

The invention relates to methods for removal of low isoelectric point product-related impurities during cation exchange purification operations.

There is provided a sorbent for removing metabolic waste products from a dialysis liquid, the sorbent comprising a layer of immobilized uremic toxin-treating enzyme particles intermixed with cation exchange particles.

A method and an apparatus suitable for a continuous chromatography process which only needs three separation columns, and a two-step process containing two chromatographic steps, in which the first chromatographic step (capture) is performed alternating and sequentially on two separation columns, the second chromatographic step (polishing) is performed, also sequentially, on the third column.