MEASUREMENT METHOD AND DEVICE OF ALDEHYDE

Japanese Patent JP3841972

B2

PROBLEM TO BE SOLVED: To easily and selectively measure a content of aldehyde with high sensitiveness by using hydrazine or its derivative as a post-label reaction reagent for bringing it and aldehydes in a sample into reaction mutually.
SOLUTION: When hydrazine or its derivative used as a post-label reaction reagent and aldehydes, for example, formaldehyde in a sample are brought into reaction mutually, triazo-phthalazine(Tri-P) as a fluorescent substance is generated. A separation column 6 and a heating reaction tube 9 arranged between a joint part with a reagent feeder 2 and a detector 11 are provided so as to serve as measurement devices. The heating reaction tube 9 is housed in a constant temperature tank 8, and reaction between aldehydes and hydrazine or its derivative serving as a reagent is carried out at a high temperature about 120°C. An object to be measured after the reaction is cooled down by a cooling tube 10 and fed to the detector 11, and then, a fluorescent substance such as Tri-P resulting from the reaction is detected. The detected result is processed in a data processor 12 for quantitatively measuring aldehydes.

Hiroki Hayazawa
Hiroshi Miyakawa
Akio Yamada

JP6861699A

November 08, 2006

March 15, 1999

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Morinaga Milk Industry Co., Ltd.

G01N30/88; G01N30/74; G01N30/84; (IPC1-7): G01N30/88; G01N30/74; G01N30/84

JP4208855A
JP9005313A
JP2022558A
JP11508564A
JP9059303A
JP55160769A
JP3140863A
JP11101791A

Analytical Chemistry,1990年,vo.62,p.1397-1402
Journal of Liquid Chromatography,1993年,vol.16,p.1667-1684
Chemmical & Pharmaceutical Bulletin,1986年,vo.34,p.3499-3501

Masatake Shiga
Tadashi Takahashi
Takashi Watanabe
Masakazu Aoyama
Suzuki Mitsuyoshi
Kazuya Nishi
Yasuhiko Murayama
Tsutomu Kudo

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