An arsenite-exposure experiment measured arsenic species in Vigna root biomass and compared extraction methods. The source’s analytical extraction yield must be distinguished from removal of arsenic from environmental water; no edible seed or market-food measurement is reported.
Key numbers
Source Table 1 reported absorption percentages at 5 mg/L arsenite (mean±SD, n=3):
| Day | As(III) % | As(V) % | MMA % | DMA % |
|---|---|---|---|---|
| 7 | 35.21 ± 0.42 | 1.23 ± 0.11 | 0.0001 ± 0.01 | 0.0001 ± 0.02 |
| 14 | 54.22 ± 0.11 | 4.21 ± 0.32 | 0.0012 ± 0.02 | 0.0001 ± 0.01 |
| 21 | 80.1 ± 0.76 | 5.03 ± 0.31 | 0.0032 ± 0.03 | 0.00011 ± 0.02 |
| 28 | 72.11 ± 0.45 | 10.23 ± 0.09 | 0.001 ± 0.01 | 0.0001 ± 0.01 |
Analytical extraction yields reported in §3.2: 85.14% using 10%TMAH and 88.92% using modified protein extractant.
Methods (brief)
Odisha-sourced seeds grown in modified Hoagland solution pH 6.8, randomized three-replicate experiment. Root biomass extracted with microwave-assisted procedures, arsenic measured by ICP-MS and species separated using Hamilton PRP-X 100 anion-exchange HPLC; SEM-EDX/FTIR used for material characterization. The paper describes differing extraction temperatures/times, and potentially species-altering digestion/reduction steps without a complete species-recovery validation.
Implications
Provides qualified root-speciation and analytical-method context for phytoremediation research. As(III), As(V), MMA and DMA stay separate. It does not demonstrate safe edible legumes or establish 85.14% water remediation.
Evidence Fitness: EF-3 for qualified experimental/speciation context; extraction conditions, denominator and species-preservation validation are unresolved. Preserve all reported time-point means and SDs.
Related evidence
- Remediation evidence — drivers and interventions
- ICP-MS — Inductively coupled plasma mass spectrometry
- Arsenic, Inorganic
- Arsenic, Total
- Soil-to-plant transfer of heavy metals
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