Page 335 - Analytical method for food addtives

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a Meinhard concentric nebuliser. Al was
with Minitorch. Samples introduced by
intensity of 4 separate determinations
absorbance measured at 385 nm and
3410+ sequential ICP spectrometer
equation on the basis of an average
calculated from a linear regression
Measurements performed on ARL
AAS method with nitrous oxide–
8-hydroxyquinoline extraction
Spectroscopic method with
acetylene flame
Lyophilised samples were digested in closed vessels
Solutions of destroyed samples kept in polyethylene
proceeded in open vessels with H 2 O 2 . H 3 BO 3 was
with HNO 3 and HF. An additional digestion then
Microwave digestion with HNO 3 , H 2 O 2 and HF.
Sample digested with H 2 SO 4 + HNO 3 + HClO 4 . 9 Spectroscopic method with 8-hydroxyquinoline extraction and Solutions of destroyed samples kept in polyethylene AAS method with nitrous oxide– acetylene flame E520–3, E541, E554–9, E573: Aluminium 225
Sample digested with H 2 SO 4 + HNO 3 + HClO 4 .
employed to eliminate HF
bottles
bottles
Seafood and meat
Foods Foods
Spectroscopic and FAAS Spectrophoto- metric oxine (SO) and FAAS ICP-AES