Table 1. The measurement of certified reference matrial (CRM)
| CRM | Analyte | Certified value(mg/kg) | Mean of measurement(mg/kg) | Recovery(%) |
| Canned fish1)(T27176QC) | Histamine | 216 | 220.7±17.22) | 97.8 |
| Rice flour3)(108-01-003) | Cd | 1.446 | 1.248±0.0254) | 86.3 |
| Pb | 0.123 | 0.131±0.002 | 107.1 |
| Tomato leaves5)(1573a) | Cd | 1.52 | 1.59±0.03 | 104.8 |
| Rice flour5)(1568a) | Cd | 0.022 | 0.020±0.001 | 91.2 |
| As | 0.285 | 0.243±0.011 | 85.3 |
1)Food and Environment Research Agency (FAPAS, UK).
2)The data were expressed as mean±SD (n=5).
3)Korea Research Institute of Standards and Science (KRISS, Korea).
4)The data were expressed as mean±SD (n=3).
5)National Institute of Standards and Technology (NIST, USA).