Arsenic speciation in rice : Exploring a method faster than FDA. Development and validation.
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.
| 2019 | |
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ARROZ ARSÉNICO MÉTODOS ANALÍTICOS |
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| 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 |
| Sumario: | 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. |
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