To provide a simple method for analyzing aldehydes and ketones in samples without requiring complication operations such as extraction by a solvent and condensation and provide an analyzing apparatus and a fiber-filled needle used for the analyzing method.
Fibers are coated with a hydrochloride or sulfate of 2, 4-dinitrophenylhydrazine. The fibers are filled in the needle for microextraction. The analyzing apparatus includes the needle and a suction device. A sample is drawn from the needle of the analyzing device by suction, and aldehydes and ketones in the sample are brought into reaction with 2, 4-dinitrophenylhydrazine into corresponding 2, 4-dinitrophenylhydrazone, desorbed, introduced to a chromatograph, and analyzed in the method for analyzing aldehydes and ketones in samples.
COPYRIGHT: (C)2007,JPO&INPIT
| JP2001296216A | 2001-10-26 |
| WO2000002041A1 | 2000-01-13 |
Nobuo Ogawa
Atsushi Hakoda
Kenji Asai
Koji Hirayama
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