Urinary excretion of arsenic following rice consumption.
作者： A.A. Meharg , P.N. Williams , C.M. Deacon , G.J. Norton , M. Hossain
DOI: 10.1016/J.ENVPOL.2014.07.031
关键词: Urinary system 、 Animal science 、 Bioavailability 、 Speciation 、 Environmental chemistry 、 Excretion 、 Arsenic 、 Urinary excretion 、 Chemistry 、 Urine sample 、 Urine
摘要: Abstract Patterns of arsenic excretion were followed in a cohort ( n = 6) eating defined rice diet, 300 g per day d.wt. where speciation was characterized cooked rice, following period abstinence from and other high containing foods. A control group who did not consume also monitored. The consumed the study contained inorganic dimethylarsinic acid (DMA) at ratio 1:1, yet urine dominated by DMA (90%). At steady state (rice consumption/urinary excretion) ∼40% derived excreted via urine. By monitoring each pass throughout it observed that there considerable variation (up to 13-fold) for an individual's total content, time dependent urinary content. This calls into question robustness routinely used first pass/spot check sampling analysis.
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