Title:
QUANTITATIVE ANALYSIS METHOD FOR WATER-SOLUBLE ORGANIC ACID, ESTERIFICATION AGENT AND ANALYSIS KIT
Document Type and Number:
Japanese Patent JP2022000631
Kind Code:
A
Abstract:
To provide a quantitative analysis method for water-soluble organic acid capable of suppressing deterioration in esterification efficiency of water-soluble organic acid even in a case of increasing an amount of an aqueous solution sample using analysis.SOLUTION: An analysis method of a water-soluble organic acid for analyzing an ester compound obtained by esterifying a water-soluble organic acid, comprises mixing an aqueous solution sample containing a water-soluble organic acid, an alcohol phase-separated from the aqueous solution sample, and an acid catalyst having a higher solubility in the phase of the alcohol than the aqueous solution sample, and reacting the water-soluble organic acid with the alcohol to esterify the water-soluble organic acid.SELECTED DRAWING: Figure 1
Inventors:
KANAKUBO MITSUHISA
KONO TAKEKI
YAMAMOTO YOSHIHIRO
TAKASAKA CHIHIRO
FUJIMURA KOJI
KONO TAKEKI
YAMAMOTO YOSHIHIRO
TAKASAKA CHIHIRO
FUJIMURA KOJI
Application Number:
JP2021099656A
Publication Date:
January 04, 2022
Filing Date:
June 15, 2021
Export Citation:
Assignee:
AIST
KYOTO MUNICIPAL INSTITUTE OF INDUSTRIAL TECH & CULTURE
SHINWA KAKO KK
KYOTO MUNICIPAL INSTITUTE OF INDUSTRIAL TECH & CULTURE
SHINWA KAKO KK
International Classes:
G01N31/00; C07C67/08; C07C69/24; C07C69/40; C07C69/675; C07C69/68; C07C69/716; G01N31/10
Domestic Patent References:
| JPH0710805A | 1995-01-13 |
Foreign References:
| WO2009110384A1 | 2009-09-11 |
Other References:
毛利孝明, キャピラリーGCによる有機酸の分析法, JPN6022029956, 1996, pages 67 - 70, ISSN: 0004828180
Attorney, Agent or Firm:
Ryuhei Nishimura
Saito Shindai
Atsushi Nakamura
Maeda Haruko
Saito Shindai
Atsushi Nakamura
Maeda Haruko