Improved flask-combustion method for phosphorus in petroleum products

Autor:	Zlata Štefanac, M. Siroki, Z. Sliepčević
Rok vydání:	1978
Předmět:	business.industry Phosphorus Inorganic chemistry chemistry.chemical_element Combustion Analytical Chemistry law.invention Ignition system chemistry.chemical_compound Petroleum product chemistry Volume (thermodynamics) law business Sodium carbonate Spectrophotometric measurement Pyrolysis
Zdroj:	Mikrochimica Acta. 69:233-240
ISSN:	1436-5073 0026-3672
DOI:	10.1007/bf01201729
Popis:	An electrical assembly for the oxygen-flask combustion of lubricants and similar petroleum products is described. The pyrolysis is performed in two consecutive steps. After the ignition and burning of the sample (sorbed on sodium carbonate) the combustion is completed by further heating. The sample weight should not exceed 140 mg. In this way the sensitivity of phosphorus determination of the tentative IP standard procedure is enhanced from 0.01 to 0.001% phosphorus if the volume of solution for the final spectrophotometric measurement is reduced.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::874ab524408176bc17dd77dbea97698f https://doi.org/10.1007/bf01201729 Zobrazit plný text záznamu Full text from SpringerLink