Title:
METHOD AND SYSTEM FOR AUTOMATICALLY ANALYZING TOTAL NITROGEN AND TOTAL PHOSPHORUS
Document Type and Number:
Japanese Patent JP3496779
Kind Code:
B2
Abstract:
PURPOSE: To improve the recovery by a constitution wherein alkaline decomposition and acidic decomposition take place using potassium peroxodisulfate in one decomposition tube.
CONSTITUTION: Alkaline potassium peroxodisulfate is decomposed in the prestage region 2 of a decomposition tube being held at high temperature in a system for feeding 1 the decomposition tube continuously with an alkaline aqueous solution of potassium peroxodisulfate while injecting an aqueous solution of sample intermittently. Subsequently, acidic potassium peroxodisulfate is injected 3 into same decomposition tube and decomposed in the post-stage region 4 of the decomposition tube. Decomposition liquid is discharged and analyzed by a conventional method thus analyzing total nitrogen 5 and total phosphorus 6 automatically.
More Like This:
Inventors:
Kazunobu Kawamoto
Application Number:
JP9062895A
Publication Date:
February 16, 2004
Filing Date:
April 17, 1995
Export Citation:
Assignee:
Blanc-Roubaix Co., Ltd.
International Classes:
G01N31/00; (IPC1-7): G01N31/00
Domestic Patent References:
| JP8285834A |
Attorney, Agent or Firm:
Kiyoji Sawa
Previous Patent: FITTING TOOL FOR EAVES GUTTER
Next Patent: AQUEOUS ROSIN-BASED RESIN DISPERSION AND ITS PRODUCTION
Next Patent: AQUEOUS ROSIN-BASED RESIN DISPERSION AND ITS PRODUCTION