发明名称 |
Method and apparatus for the analysis of sulphur contents in samples |
摘要 |
A method and apparatus for the quantitative determination of very small percentages of sulphur in sample analysis is carried out by means of sample combustion in a helium current temporarily enriched with oxygen, subsequent catalytic oxidation and reduction of the combustion gases, gas chromatographic separation and detection in a thermal conductivity detector. At the outlet of this thermal conductivity detector the products are fed to a water trap and to a sulphur selective detector of the flame photometric type to detect sulphur contents below 0.5 mu g.
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申请公布号 |
US4293308(A) |
申请公布日期 |
1981.10.06 |
申请号 |
US19790082251 |
申请日期 |
1979.10.05 |
申请人 |
CARLO ERBA STRUMENTAZIONE S.P.A. |
发明人 |
SISTI, GIORGIO;COLOMBO, BRUNO |
分类号 |
G01N31/00;G01N21/72;G01N30/74;G01N30/88;G01N31/12;(IPC1-7):G01N31/08;G01N25/24 |
主分类号 |
G01N31/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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