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Vollautomatische Anlage zur gleichzeitigen Bestimmung von Kohlenstoff, Wasserstoff und Stickstoff in organischen Verbindungen an Milligramm‐ und Submilligramm‐Mengen unter Verwendung einer selbstintegrierenden Wärmeleitfähigkeitsmessmethodik
Author(s) -
Clerc J. T.,
Dohner R.,
Sauter W.,
Simon W.
Publication year - 1963
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19630460655
Subject(s) - chemistry , hydrogen , analyser , nitrogen , oxygen , nuclear chemistry , inorganic chemistry , organic chemistry , chromatography
Abstract An analyser for the simultaneous determination of carbon, hydrogen and nitrogen in organic compounds is described. The samples are burned in a static system in oxygen and the combustion products are determined using a self‐integrating thermal conductivity method. Up to 16 previously weighed samples of 0.5 ÷ 2.0 mg are analysed without any manual help and the results are presented in digital form. One determination takes between 7 and 13 minutes. At present the standard error of a single determination is 0.20, 0.08 and 0.30% (absolute) for carbon, hydrogen and nitrogen, respectively, but these figures may easily be improved by minor modifications.