Analytical Letters · 1973 · 20 citations · 5 references
HalogenationAbstract BromideChemical EngineeringChemical MeasurementEngineeringSolvent ExtractionGas ChromatographyGas Chromatographic DeterminationOrganic ChemistryAnalytical ChemistryChemistryChromatographic AnalysisToluene-alcohol SolutionsUndergo Thermal DegradationChromatography
Abstract Bromide, iodide, and chloride are extracted from aqueous solutions into toluene-alcohol solutions of tetraheptyl-ammonium carbonate. The tetraheptylammonium halides undergo thermal degradation to 1-haloheptanes and triheptylamine. On-column preparation of the haloheptanes is achieved above 150°C. The halocarbons produce gas chromatographic peaks which are used for quantitative analysis of bromide, chloride, and iodide at low ppm levels.
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