Gas-chromatographic determination of volatile sulfur-containing impurities in industrial emissions and aqueous solutions

Autor:	O. G. Kovalenko, A. G. Vitenberg, V. I. Toma, Yu. G. Dobryakov
Rok vydání:	2007
Předmět:	Chromatography Aqueous solution Orders of magnitude (temperature) Hydrogen sulfide Analytical chemistry Analytical Chemistry law.invention chemistry.chemical_compound chemistry Impurity law Flame ionization detector Sample preparation Gas chromatography Quartz
Zdroj:	Journal of Analytical Chemistry. 62:857-867
ISSN:	1608-3199 1061-9348
DOI:	10.1134/s1061934807090092
Popis:	Procedures are developed for determining volatile sulfur-containing impurities, hydrogen sulfide, simple mercaptans, sulfides, and disulfides in air and aqueous solutions. The procedures are based on the principle’s headspace gas chromatography and equilibrium preconcentration. The procedures differ from the officially approved ones in that the operations of sampling and sample preparation to gas-chromatographic analysis considerably reduce the loss of hydrogen sulfide and mercaptans unstable in humid air. The procedures provide the determination of sulfur-containing substances at the level of their maximum permissible concentrations (MPC) in industrial emissions and natural waters and the analytical range of four orders of magnitude; they can be implemented on gas chromatographs with flame ionization and flame photometric detectors, a quartz capillary column, and a thermostated gas-sampling valve.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0173bdd5e4a7f00e06c67cdf03ffc069 https://doi.org/10.1134/s1061934807090092 Zobrazit plný text záznamu Plný text ve formátu PDF