Conductivity Detector for Nitrogen Compounds: Maintenance Program Enabling Gas-Liquid Chromatographic Analysis of Trace Residues in Crude Soil Extracts

Autor: Sarna Lp, Webster Gr
Rok vydání: 1974
Předmět:
Zdroj: Journal of AOAC INTERNATIONAL. 57:1279-1281
ISSN: 0004-5756
DOI: 10.1093/jaoac/57.6.1279
Popis: A maintenance program for the Coulson conductivity detector is described which incorporates a new rapid method of decontaminating the stainless steel transfer lines and the vent valve of the detector system. Regular use of these maintenance procedures facilitites use of the Coulson conductivity detector for the analysis of trace residues of nitrogen-containing herbicides in crude soil extracts by maintaining detector sensitivity over an extended period of time and ensuring reliable performance from the instrument. Thus it is possible to avoid lengthy cleanup of analytical samples and the losses of material which might be involved, and to make maximum use of selective response of the Coulson conductivity detector. Approximately 2 days' down time is required every 3 months for this procedure.
Databáze: OpenAIRE