Determination of cadmium and lead in river water by sequential metal vapor elution analysis using a step-heated column

Autor:	Kiyohisa Ohta, Syn Ichi Itoh, Takayuki Mizuno, Hirohisa Taniguti
Rok vydání:	1997
Předmět:	Cadmium Argon Elution Analytical chemistry chemistry.chemical_element Hydrochloric acid Tungsten Analytical Chemistry law.invention Matrix (chemical analysis) chemistry.chemical_compound chemistry Molybdenum law Atomic absorption spectroscopy
Zdroj:	Mikrochimica Acta. 127:51-54
ISSN:	1436-5073 0026-3672
DOI:	10.1007/bf01243163
Popis:	Determination of cadmium and lead in river water by sequential metal vapor elution analysis (SMVEA, column temperature; >1210 K) with argon carrier gas and an atomic absorption detector (AA) is reported. The column was a molybdenum tube inserted a tungsten coil. The flow rate of carrier gas was 1.8 ml min−1. Cadmium and lead were separated from Ca, Fe, K, Na, and Zn metal vapours by SMVEA with the step-heated column (1210–1520 K) at an atomization temperature of 1830 K. Under the optimal experimental conditions, the recoveries of spiked-cadmium and lead in river waters were in the range of 91 to 106%. It is to determine cadmium and lead in river water without the interferences by matrix elements observed by electrothermal AAS, after only the addition of hydrochloric acid to the sample.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1b222fb71ad897486300daa260aba07b https://doi.org/10.1007/bf01243163 Zobrazit plný text záznamu Full text from SpringerLink