Title:
METHOD FOR ANALYZING CONCENTRATIONS OF FLUORINE AND COMPOUND THEREOF
Document Type and Number:
Japanese Patent JP2023012339
Kind Code:
A
Abstract:
To provide a method for analyzing the concentrations of fluorine and a compound of the fluorine that can easily and rapidly conduct a measurement on site and can reduce the influence of aluminum ions, for example, coexisting in underground water.SOLUTION: The present invention relates to a simple method for analyzing the concentrations of fluorine and a compound of the fluorine in underground water, the method including: adding oxine solid powders to the underground water; agitating an aqueous solution and extracting a supernatant solution; filtering the supernatant solution; and determining the quantity of the filtered water by a colorimetric analysis of fluoride ions using the lanthanum alizarin complexone absorptiometry.SELECTED DRAWING: Figure 1
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Inventors:
SHIMADA YOSUKE
HIRAOKA YASUYUKI
FURUYA TOMOYUKI
DAIMARU YUICHIRO
NEGISHI MASANORI
UMINO MADOKA
MINO KAORI
HASEGAWA YUKO
HIRAOKA YASUYUKI
FURUYA TOMOYUKI
DAIMARU YUICHIRO
NEGISHI MASANORI
UMINO MADOKA
MINO KAORI
HASEGAWA YUKO
Application Number:
JP2021115932A
Publication Date:
January 25, 2023
Filing Date:
July 13, 2021
Export Citation:
Assignee:
TAISEI CORP
International Classes:
G01N31/00; G01N21/78; G01N33/18
Attorney, Agent or Firm:
Patent Attorney Corporation Isono International Patent and Trademark Office