Title:
METHOD AND APPARATUS FOR ATOMIC ABSORPTION SPECTROMETRY OF PARTICLE FLOATING IN GAS
Document Type and Number:
Japanese Patent JP3198841
Kind Code:
B2
Abstract:
PURPOSE: To analyze online fine particles floating in a gas, e.g. particulate dust in exhaust gas, etc.
CONSTITUTION: A heating/dissolving/exciting part 1 of an atomic absorption spectrometer is accommodated in a vacuum container 2. The pressure of the vacuum container 2 is kept to be lower by a constant difference than the pressure of a 'system to be measured where a gas sample is present, so that the gas sample is introduced at a constant flow rate to an absorption part. Accordingly, settling of particles is avoided and accurate analyzing results can be promptly and continuously obtained.
Inventors:
Yoshito Iwata
Tetsushi Kishiro
Takanori Akiyoshi
Yoichi Ishibashi
Tetsushi Kishiro
Takanori Akiyoshi
Yoichi Ishibashi
Application Number:
JP31288994A
Publication Date:
August 13, 2001
Filing Date:
December 16, 1994
Export Citation:
Assignee:
Nippon Steel Tube Co., Ltd.
International Classes:
G01N1/02; G01N21/31; (IPC1-7): G01N21/31; G01N1/02
Domestic Patent References:
| JP636441A | ||||
| JP5180769A | ||||
| JP6249781A | ||||
| JP5562343A | ||||
| JP316048U | ||||
| JP6228154U |
Attorney, Agent or Firm:
Shigeru Takano
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