CODEX STAN 234-1999
22
Foods for Special Dietary Uses
Infant formula
Folic acid
AOAC 992.05
(Measures free folic acid + free, unbound
natural folates, aggregated and measured as
folic acid)
EN 14131
(Total folate (free + bound), aggregated and
measured as folic acid)
Microbioassay
II
Infant formula
Folic acid
J AOAC Int. 2000:83; 1141-1148
(Measures free folic acid + proportion of free,
natural folate)
Optical Biosensor
Immunoassay
IV
Infant formula
Folic acid
J Chromatogr. A., 928, 77-90, 2001
(Measures total folates after conversion to,
and measurement as 5-Me-H4PteGlu)
HPLC, incorporating immunoaffinity
clean-up and conversion to 5-
methyltetrahydrofolate
IV
Infant formula
Iodine
(for milk-based formula)
AOAC 2012.15 | ISO 20647 | IDF 234
ICP-MS
II
Infant formula
Iron
9
AOAC 985.35
Flame atomic absorption
spectrophotometry
III
Infant formula
Iron
AOAC 984.27
ICP emission spectroscopy
III
Infant formula
Iron
AOAC 999.11│NMKL139
AAS after dry ashing
II
Infant formula
Magnesium
ISO 8070 │ IDF 119
Flame atomic absorption
spectrophotometry
II
Infant formula
Magnesium
AOAC 985.35
Flame atomic absorption
spectroscopy
III
Infant formula
Magnesium
AOAC 984.27
ICP emission spectroscopy
III
Infant formula
Manganese
AOAC 985.35
Flame atomic absorption
spectrophotometry
II
Infant formula
Manganese
AOAC 984.27
ICP emission spectroscopy
III
Infant formula
Melamine
ISO/TS 15495 | IDF/RM 230
LC-MS/MS
IV
9
General Codex methods are also available
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