A sheet article for solid phase extraction or solid phase reaction comprises at least one sorptive polymer pulp, and optionally at least one of sorptive and reactive particulate The article can be used in a method of separating an analyte from a fluid comprising the step of passing a fluid comprising an analyte through a sheet article comprising poly(p- or m-phenylenephthalamide) pulp, the pulp optionally having incorporated therein solid phase particulates, the sheet article being capable of isolating the analyte from the fluid

Sheet materials for solid phase extractions and solid phase reactions

PURPOSE:To prevent an increase in contact angle which lowers the productivity by efficiently removing the contaminant that increase the contact angle. CONSTITUTION:In this method, the harmful matter in the gas in contact, with the substrate or base material is removed by a removing means contained with glass and/or fluororesin, and the gas is brought into contact with the substrate or base material. The means is provided with a remover 4 passing the gas in contact with the substrate or base material and packed with a glass 4-1 and/or a fluororesin 4-2.

Method and device for preventing increase in contact angle on surface of substrate or base material

PURPOSE:To obtain the title paper capable of adsorption of ammonia gas, tobacco nicotines, etc., when used as an element in air cleaners, with no fear of impairing its function even if heated at elevated temperatures in its regeneration, by papermaking of a mixture of porous glass fiber and fibrillated heat- resistant organic fiber. CONSTITUTION:The objective paper pref. >=100m /g in BET surface area and >=0.2cm /g in pore volume can be obtained by papermaking of a mixture of (A) porous glass fiber (pref. >=400m /g in BET surface area, /g in pore volume) and (B) fibrillated heat-resistant organic fiber (pref. aromatic polyamide fiber).

Furusawa Satoshi

Papers

Porous glass paper