Abstract:Objective To develop an inductively coupled plasma mass spectrometry (ICP-MS) method for the determination of iodine in beverages, beer and fruit juices. Method Extracting the samples with tetramethylammonium hydroxide and hydrogen peroxide. Iodine was determined by ICP-MS and using 128Te as on-line internal standards; the RF power was 1380 w; the carrier gas flow rate was 1.08 L/min and iodine m/z was 127. Result The linear range was 0~400 ?g/L,the linear coefficient(r) was more than 0.9990. The detection limit was 0.25 ?g/L. The average recovery was ranged from 88.8%~106.3%, and the RSD was less than 5%. Conclusion this method is sensitive, simple, rapid and accurate for the determination of iodine contents in beverage, beer and fruit juice products.