Wherever possible the trueness of analysis shall be estimated by including suitable certified reference materials in the analysis.
Parameter | Criterion |
---|---|
Applicability | Foods specified in this Regulation |
Specificity | Free from matrix or spectral interferences |
Field blanks | Less than Limit of Detection (LOD) |
Repeatability (RSDr) | 0,66 times RSDR as derived from (modified) Horwitz equation |
Reproducibility (RSDR) | as derived from (modified) Horwitz equation |
Recovery | 75-110 % |
Limit of Detection (LOD) | Three tenths of LOQ |
Limit of Quantification (LOQ) | For benchmark level < 125 μg/kg: ≤ two fifths of the benchmark level (however not required to be lower than 20 μg/kg) For benchmark level ≥ 125 μg/kg: ≤ 50 μg/kg |
M. Thompson et al, Pure and Applied Chemistry, 2006, 78, pp. 145-196.
Edited by M. Thompson and R. Wood, Pure and Applied Chemistry, 1995, 67, pp. 649-666.