GAS CHROMATOGRAPHY SAMPLE PREPARATION METHOD AND ANALYSIS METHOD

WIPO Patent Application WO/2020/213209

A1

This gas chromatography sample preparation method comprises: performing at least one of measuring the pH of at least one from among a sample solution containing a sample, a reference solution containing a known concentration of a reference material, and a mixture of the sample solution and the reference solution, and analyzing a solution containing a molecule of the same type as the analyte and the reference material; preparing a sample for derivatization on the basis of the measured pH or the data obtained from said analysis; and bringing the sample for derivatization into contact with a derivatizing agent in the presence of a base. If the analysis is to be performed, the solution that has been brought into contact with the derivatization agent in the presence of the base is at least subjected to gas chromatography.

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UNNO YUMI (JP)
KAWANA SHUICHI (JP)
FUJIWARA SATOSHI (JP)
OJIMA NORIYUKI (JP)

PCT/JP2019/048544

October 22, 2020

December 11, 2019

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SHIMADZU CORP (JP)

G01N30/04; G01N30/06; G01N30/86

JP2012122974A	2012-06-28
US20080261312A1	2008-10-23

SHIMADZU CORPORATION: "Profiling of Metabolites in Green Tea Leaves Using GC/MS.", GC/MS GC/MS APPLICATION NOTE, NO. 4, 31 March 2009 (2009-03-31), pages 1 - 6

NAGAI, Fuyuki et al. (JP)

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