Pretreatment method for determination of aluminum in meat and meat products with ICP-OES

ObjectiveTo establish a pretreatment method for the determination of aluminum(Al)in meat and meat products with inductively coupled plasma optical emission spectrometry(ICP-OES).MethodsSixty meat samples were pretreated with wet digestion,microwave digestion,and dry ash method and the experimental conditions for the three methods were optimized.ResultsThe experimental results show that dry ash method is best for the determination of Al in meat and meat products and an additional digestion by adding a moderate a mount of nitric acid when necessary.The detection limit is 0.6 mg/kg,the range of recovery rate is 86.0% -105%,and the relative standard deviation(RSD)is 8.8% for the Al detection under dry ash pretreatment.ConclusionThe method for determination of Al in meat samples is better than the methods currently used.