JPS5629143A - Graphite evaporation tube for atomic absorption - Google Patents

Graphite evaporation tube for atomic absorption

Info

Publication number
JPS5629143A
JPS5629143A JP10621479A JP10621479A JPS5629143A JP S5629143 A JPS5629143 A JP S5629143A JP 10621479 A JP10621479 A JP 10621479A JP 10621479 A JP10621479 A JP 10621479A JP S5629143 A JPS5629143 A JP S5629143A
Authority
JP
Japan
Prior art keywords
evaporation tube
atomic absorption
coating
gas
halogenated hydrocarbon
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP10621479A
Other languages
Japanese (ja)
Inventor
Kazuo Yamada
Sugiro Otani
Akira Kojima
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Showa Denko Materials Co Ltd
Original Assignee
Hitachi Chemical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Chemical Co Ltd filed Critical Hitachi Chemical Co Ltd
Priority to JP10621479A priority Critical patent/JPS5629143A/en
Publication of JPS5629143A publication Critical patent/JPS5629143A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/71—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited
    • G01N21/74—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited using flameless atomising, e.g. graphite furnaces

Abstract

PURPOSE:To increase the adhesion of coating and to achieve excellent life, stability, reproducibility and sensitibity, by coating the evaporation tube with carbon deposit in which gas containing halogenated hydrocarbon is thermally decomposed in gas phase at a low temperature. CONSTITUTION:The graphite evaporation tube used for atomic absorption spectrophotometer is coated with the carbon separation substance of columna construction obtained from gas phase thermal decomposition of halogenated hydrocarbon containing gas such as 1,2-dichloroethylene at 400 deg.C or more. This thermally decomposed carbon deposit is dense and has greater bonding property with the base material, then the wear due to oxidation of evaporation tube is less and the instability of reproduction due to infiltraction of sample can be prevented.
JP10621479A 1979-08-20 1979-08-20 Graphite evaporation tube for atomic absorption Pending JPS5629143A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10621479A JPS5629143A (en) 1979-08-20 1979-08-20 Graphite evaporation tube for atomic absorption

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10621479A JPS5629143A (en) 1979-08-20 1979-08-20 Graphite evaporation tube for atomic absorption

Publications (1)

Publication Number Publication Date
JPS5629143A true JPS5629143A (en) 1981-03-23

Family

ID=14427893

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10621479A Pending JPS5629143A (en) 1979-08-20 1979-08-20 Graphite evaporation tube for atomic absorption

Country Status (1)

Country Link
JP (1) JPS5629143A (en)

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