电感耦合等离子体发射光谱法测定海带中的碘

摘要

海带干粉以硝酸或王水进行消解,应用电感耦合等离子体发射光谱法,在183.038 nm测定样品溶液中的碘.方法检出限达1 mg/L.加标回收率98.2％ ～ 101.9％,标准偏差SD =0.325.%The kelp powder is digested by nitric acid or aqua regia, the ICP-AES was used to determine the iodine in the sample solution at 183. 038 nm. The method detected limit of 1 mg/L. Spiked recoveries 98. 2%～101. 9% .standard deviation SD =0. 325.