A sampling material for a carbonyl compound in a gas comprising a reagent capable of converting a carbonyl compound to a derivative thereof supported on a cation exchanger; and a sampling cartridge for a carbonyl compound in a gas wherein a sampling material for a carbonyl compound in a gas comprising a reagent capable of converting a carbonyl compound to a derivative thereof supported on a cation exchanger is packed in a column are provided. The sampling cartridge can be used for analyzing a carbonyl compound such as formaldehyde with ease and at a high sensitivity and high accuracy, and has excellent storage stability.
PROCESSES FOR PRODUCTION OF SILICA GELS CARRYING DERIVATIZATION AGENTS FOR CARBONYL COMPOUNDS
申请人:Wako Pure Chemical Industries, Ltd.
公开号:EP1811295A1
公开(公告)日:2007-07-25
The subject of the present invention is to provide a method for producing a silica gel supporting a derivatizing agent for a carbonyl compound that hardly collects carbonyl compounds during production thereof, and a silica gel supporting a derivatizing agent for a carbonyl compound produced by said production method, in order to lower a blank value in measurement of carbonyl compounds. The present invention also relates to a method for producing a silica gel supporting a derivatizing agent for a carbonyl compound characterized by bringing an acid-supported silica gel into contact with an organic solvent containing the derivatizing agent for a carbonyl compound, a silica gel filler supporting a derivatizing agent for a carbonyl compound comprising the silica gel supporting the derivatizing agent for a carbonyl compound produced by the above production method, a method for producing a silica gel supporting a derivatizing agent for a carbonyl compound characterized by treating in advance a silica gel having a cation-exchange group with the derivatizing agent for a carbonyl compound and then bringing it into contact with an organic solvent containing the derivatizing agent for a carbonyl compound, and the like.
Verwendung von 1-Arylsemicarbaziden zur Stabilisierung von Enzymsubstraten, entsprechende Verfahren und diagnositsches Mittel enthaltend einen solchen Stabilisator