Data/hora: 27/07/2024 01:49:14

Provedor de dados: 	5	
País: 	France	
Título: 	Synthesis of hydrochloric acid solution for total mercury determination in natural waters	
Autores: 	Patel-sorrentino, Nathalie; Benaim, Jean-yves; Cossa, Daniel; Lucas, Yves.	
Data: 	2011-01	
Ano: 	2011	
Palavras-chave: 	Synthesis; Hydrochloric acid; Mercury determination; Green analytical chemistry.	
Resumo: 	Total mercury (Hg-T) determination requires the addition of concentrated hydrochloric acid solution (&gt;= 10 mol L-1 HCl) in relatively high amounts to preserve the samples and to prepare reagent solutions. A method for the preparation of concentrated HCl with HgT concentration of lower than 5 ng L-1 is described in this article. It is based on the well-known chemical reaction: 2 NH4Cl+H2SO4 -&gt;(NH4)(2)SO4+2 HCl. This method is validated thanks to the US Environmental Protection Agency method 1631 and standard reference materials BCR-579 (mercury in coastal seawater).	
Tipo: 	Text	
Idioma: 	Inglês	
Identificador: 	http://archimer.ifremer.fr/doc/00029/14071/11390.pdf

DOI:10.1007/s00216-010-4432-y	
Editor: 	Springer Heidelberg	
Relação: 	http://archimer.ifremer.fr/doc/00029/14071/	
Formato: 	application/pdf	
Fonte: 	Analytical And Bioanalytical Chemistry (1618-2642) (Springer Heidelberg), 2011-01 , Vol. 399 , N. 3 , P. 1389-1392	
Fonte: 	Springer-Verlag 2010