Rice finding 1528
Source evidence and comparison details for the Rice profile.
Rice grain unspecified (market rice, washed, oven-dried at 110 °C, ground) · Lead (Pb) · 1 rice sample (three replicate determinations).
Selected finding and reference
1 rice sample (three replicate determinations). Basis: dry weight (sample dried at 110 °C before digestion; table does not state basis).
Reported N.D by both the MSPME-FAAS method and GF-AAS; no mass-based detection limit given (solution LOD 0.54 µg/L, LOQ 1.82 µg/L). Not imputed as zero.
HMI baseline position
Limited data: The source reports a non-detect without a numerical limit; its position cannot be identified. Missing evidence never means low contamination.
The source reports a non-detect without a numerical limit; its position cannot be identified.
Reference version and interpretation
Frozen evidence selection: 2026-10-22. Method: hmi-pooled-reference-v2.
No admitted reference
The reference is computed by HMI from admitted evidence, not copied from a study baseline. It describes the evidence currently in this scope; it is not a worldwide or current-lot benchmark. Source, year and region filters do not change it. Different HMI scopes are not one common ranking.
Collection period
Collection date unreported
No year-by-year sample register is reconstructed from this summary.
Geographic scope
Rice (local market, Yazd, Iran)
Purchase or reporting market; growing origin not identified.
Sampling, analysis and reporting limits
HNO3/H2O2 hot-plate digestion of 250 mg; MSPME on polythiophene/magnetic MWCNT; FAAS; independent GF-AAS (ETAAS) comparison.
Reported N.D by both the MSPME-FAAS method and GF-AAS; no mass-based detection limit given (solution LOD 0.54 µg/L, LOQ 1.82 µg/L). Not imputed as zero.
Shared samples and study overlap
Subgroup rows, statistics of the same subgroup and the study total share samples; they are not independent results.
Each table row describes a food/analyte result. Repeated rows do not add independent samples or datasets. No cross-study trend is calculated in this comparison mode.
Reported values, conversion and source locator
| Source statistic | Original result | Displayed unit conversion |
|---|---|---|
| not_detected | N.D (MSPME-FAAS); N.D (GF-AAS) | none |
Table 4, row 'Rice', Added 0, Found Pb and GF-AAS Pb columns; LOD Table 2; p.519-520.
No moisture, cooking-yield or species conversion is applied to the original finding above. Any basis conversion used for its HMI comparison is stated separately with the numerical target.