Arsenic speciation in rice : Exploring a method faster than FDA. Development and validation.

VERGER, MELISSA - TCHORBADJIAN, LORENA - DARRÉ, ELENA - HUERTAS, RAQUEL

Resumen:

Due to the different toxicity of arsenic species (arsenite- As+3 > arsenate As+5 > dimethyl arsenic acid-DMA > monomethyl arsenic acid -MMA) and the prevalence of arsenic in rice crops, knowledge about the speciation of arsenic in rice is a mandatory requirement so as to offer an innocuous product to the population. Since HPLC-ICP-MS is both a time consuming and expensive technique which requires trained analysts, arsenic speciation in rice continues to be a challenge in the laboratories of Latin America. Due to the above, obtaining faster, cheaper and accurate analytical methods is always a concern in our daily work. In that search we optimized speciation of arsenic in rice starting with FDA 4.11 method[1] and ended up obtaining an analytical method at least three times faster.


Detalles Bibliográficos
2019
ARROZ
ARSÉNICO
MÉTODOS ANALÍTICOS
Inglés
Laboratorio Tecnológico del Uruguay
Catálogo digital del LATU
https://catalogo.latu.org.uy/opac_css/index.php?lvl=notice_display&id=31958
Acceso abierto
CC BY-NC-ND