150-151 / 407
CODEX STAN 234-1999
45
Provision
ML
(mg/L)
Min. applicable
range (mg/L)
LOD
(mg/L)
LOQ
(mg/L)
Precision RSDR (%)
No more than
Recovery
(%)
Suggested methods
meeting the criteria
Principle
Lead
0.01
0.0056
0.002
0.004
44
90-107
ISO 17294-2
ISO 15586
EPA 200.8
ICP-MS
GF-AAS
ICP-MS
Manganese
0.4
0.18
0.04
0.08
37
95-105
ISO 11885I
SO 17294-2
ISO 15586
EPA 200.8
ICP-OES
ICP-MS
GF-AAS
ICP-MS
Mercury
0.001
0.00056
0.0002 0.0004
44
80-110
EN 1483
ISO 17852
ISO 5666
ISO 16590
EPA 200.8
AAS
Enrichment by amalgamation (III)
AFS
AAS after tin(II) chloride
reduction
Enrichment by amalgamation (III)
ICP-MS
Nickel
0.02
0.011
0.004
0.008
44
90-107
ISO 17294-2
ISO 15586
EPA 200.8
ICP-MS
GF-AAS
ICP-MS
Nitrate
50
37
5
10
18
98-102
ISO 10304-1
ISO 13395
ISO 7890-3
LC of ions
CFA, FIA, Spectrophotometry
Spectrophotometry
Nitrite
0.1
0.03
0.01
0.02
44
95-105
ISO 10304-1
ISO 13395
ISO 6777
LC of ions UV
CFA, FIA, Spectrophotometry
Spectrophotometry
Selenium
0.01
0.0056
0.002
0.004
44
90-107
ISO 17294-2
ISO 15586
ISO 9965
EPA 200.8
ICP-MS
GF-AAS
AAS (Hydride)
ICP-MS
91