Estudo da especiação de arsênio inorgânico e determinação de arsênio total no monitoramento ambiental da qualidade de águas subterrâneas

Química Nova

Ricardo Perobelli Borba¹  Aline Renée Coscione¹  Bernardino Ribeiro Figueiredo²  Fábio Zambello² 

[1] ,Instituto Agronômico de Campinas Centro de Solos e Recursos Ambientais Campinas SP ,Brasil

关键词: arsenic;    groundwater;    sample preservation;   

DOI  :  10.1590/S0100-40422009000400027

来源: SciELO

【 摘 要 】

This work reports an alternative, fast and robust method, for the determination of total As, As(III) and As(V) by HG-AAS without the use of prereductants. The method is based on the different rates of arsine formation of the inorganic As species and the effect of As(III) in the signal obtained for total As. Groundwater and mineral spiked waters were used to sample preservation evaluation. The method was validated by the determination of As in SRM 1640 and used in the determination of total As and its inorganic species in groundwater samples collected from mines in the Iron Quadrangle - MG.

【 授权许可】

CC BY-NC   
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