Page 339 - Analytical method for food addtives
P. 339

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                                                 and DOLT-2) agreed well with the reported reference values. Detection limit
                                        The linearity of the calibration line as well as of different standard addition
                                                                 Recovery 86.4–109.3 % (mean 98.6 %±5.2 %) Detection limit 0.5 µg/mL
                                               The Al concentrations in biological reference materials (NRCC DORM-2
                                          lines were very good within 0–60 µg Al/L. Detection limit in dried ocean
                                                                     Recovery 83.3–100 % (mean 94.2 % ±8.1 %) Detection limit 6 µg/mL.
                                                        For 8-hydroxyquinoline extraction method 88.5–106.5 %
                                                   ng Al/g on a dry weight basis
                                            perch fillet was 0.03 µg Al/g on a dry weight basis
                                                            Methods applied to commercially available foods
                                                          For AAS method 75–100 %
                                                   in samples of fish was 1
                                                      Recovery of spikes:
                   Detection limit 50  8 pg. Reliability of the pg; characteristic mass 18 procedure checked statistically comparing results with those obtained with a previous microwave mineralisation stage and by analysis of several CRMs. Calibration graph linear between 0 and 90 ng/mL. Repeatability  RSD = 5.1 % (n=10) Al content of baby foods ran
                                                                   For AAS method
                                                               For SO method
                   Precision of method  established CRMs and  validated with different  types of baby food  samples  Precision of method established and applied  to samples (n=10)  Precision of method established and applied to  fish tissue samples  Precision of method established and applied to  fish tissue samples  Method applied to real  samples
                   Baby foods   Port wine  Fish  Fish  Foods   Foods






                   ETAAS        ETAAS   GFAAS  GFAAS  Spectro-  scopic and  FAAS  Spectro-  scopic and  FAAS
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