Abstract: A method of analyzing phenylhydrazine content in a 3-methyl-1-phenyl-2-pyrazolin-5-one active pharmaceutical ingredient includes obtaining a first measured value by measuring a phenylhydrazine content of a standard solution including phenylhydrazine or a salt thereof, a first acidic water and a first water-soluble organic solvent and having a phenylhydrazine concentration of 0.01 ?g/mL to 10 ?g/mL, obtaining a second measured value by measuring a phenylhydrazine content in a sample solution including a 3-methyl-1-phenyl-2-pyrazolin-5-one active pharmaceutical ingredient, a second acidic water and a second water-soluble organic solvent, and detecting a phenylhydrazine content in a 3-methyl-1-phenyl-2-pyrazolin-5-one active pharmaceutical ingredient based on the first measured value and second measured value.

Abstract: A method of analyzing phenylhydrazine content in a 3-methyl-1-phenyl-2-pyrazolin-5-one active pharmaceutical ingredient includes obtaining a first measured value by measuring a phenylhydrazine content of a standard solution including phenylhydrazine or a salt thereof, a first acidic water and a first water-soluble organic solvent and having a phenylhydrazine concentration of 0.01 ?g/mL to 10 ?g/mL, obtaining a second measured value by measuring a phenylhydrazine content in a sample solution including a 3-methyl-1-phenyl-2-pyrazolin-5-one active pharmaceutical ingredient, a second acidic water and a second water-soluble organic solvent, and detecting a phenylhydrazine content in a 3-methyl-1-phenyl-2-pyrazolin-5-one active pharmaceutical ingredient based on the first measured value and second measured value.

Abstract: An information processing apparatus for configuring a signage device acquires layout information including position information of at least one signage device in a target area and a floor plan which enables identification of placement of at least one fixture placed in the target area, and content information associated with content to be displayed on the signage device. The information processing apparatus displays an icon corresponding to the signage device at a position corresponding to position information in the floor plan. On receiving a selection of the icon from a user, the information processing apparatus displays content information set in the signage device or content information to be set in the signage device, which enhances the user-friendliness in checking or setting up configuration details.

Abstract: A method of analyzing phenylhydrazine content in a 3-methyl-1-phenyl-2-pyrazolin-5-one active pharmaceutical ingredient includes obtaining a first measured value by measuring a phenylhydrazine content of a standard solution including phenylhydrazine or a salt thereof, a first acidic water and a first water-soluble organic solvent and having a phenylhydrazine concentration of 0.01 ?g/mL to 10 ?g/mL, obtaining a second measured value by measuring a phenylhydrazine content in a sample solution including a 3-methyl-1-phenyl-2-pyrazolin-5-one active pharmaceutical ingredient, a second acidic water and a second water-soluble organic solvent, and detecting a phenylhydrazine content in a 3-methyl-1-phenyl-2-pyrazolin-5-one active pharmaceutical ingredient based on the first measured value and second measured value.

Abstract: A method of analyzing phenylhydrazine content in a 3-methyl-1-phenyl-2-pyrazolin-5-one active pharmaceutical ingredient includes obtaining a first measured value by measuring a phenylhydrazine content of a standard solution including phenylhydrazine or a salt thereof, a first acidic water and a first water-soluble organic solvent and having a phenylhydrazine concentration of 0.01 ?g/mL to 10 ?g/mL, obtaining a second measured value by measuring a phenylhydrazine content in a sample solution including a 3-methyl-1-phenyl-2-pyrazolin-5-one active pharmaceutical ingredient, a second acidic water and a second water-soluble organic solvent, and detecting a phenylhydrazine content in a 3-methyl-1-phenyl-2-pyrazolin-5-one active pharmaceutical ingredient based on the first measured value and second measured value.

Abstract: An information processing apparatus for configuring a signage device acquires layout information including position information of at least one signage device in a target area and a floor plan which enables identification of placement of at least one fixture placed in the target area, and content information associated with content to be displayed on the signage device. The information processing apparatus displays an icon corresponding to the signage device at a position corresponding to position information in the floor plan. On receiving a selection of the icon from a user, the information processing apparatus displays content information set in the signage device or content information to be set in the signage device, which enhances the user-friendliness in checking or setting up configuration details.

Abstract: This method of analyzing the phenylhydrazine content in a 3-methyl-1-phenyl-2-pyrazolin-5-one bulk drug involves: obtaining a first measured value by measuring the phenylhydrazine content of a standard solution that contains phenylhydrazine or a salt thereof, a first acidic water and a first water-soluble organic solvent, and that exhibits a phenylhydrazine concentration of 0.01 ?g/mL to 10 ?g/mL; obtaining a second measured value by measuring the phenylhydrazine content in a sample solution that contains a 3-methyl-1-phenyl-2-pyrazolin-5-one bulk drug, a second acidic water and a second water-soluble organic solvent; and detecting the phenylhydrazine content in the 3-methyl-1-phenyl-2-pyrazolin-5-one bulk drug on the basis of the first measured value and the second measured value.