【作者】 杨涛； 高剑峰； 赖鸣远； 杨競红；

【Author】 YANG Tao~(1,2) GAO Jian-feng~(1,2) LAI Ming-yuan~(1,2) YANG Jing-hong~(1,2) 1.State Key Laboratory for Mineral Deposits Research,Department of Earth Sciences,Nanjing University,Nanjing,210093,China 2.Center for Marine Geochemistry Research,Nanjing University,Nanjing,210093,China

【机构】 南京大学地球科学系内生金属矿床成矿机制研究国家重点实验室；

【摘要】 <正>溴碘元素与生物有密切关系是海洋生物必需的营养元素,被列入海水化学要素分析。溴离子分析目前有比较成熟的方法,比如重度法、滴定法和离子色谱法。但海水中碘含量太低(～100μg·L^-1), 测试中容易受到高盐度基体的影响,一些常规方法已经不适用于碘的测试,故必须找到一种方法有更多还原

【Abstract】 An analytical method for measuring bromine and iodine in sea water and sediment pore waters is reported in this study by using inductively coupled plasma mass spectrometry（ICP-MS）.The instrument used here was a High Resolution ICP-MS（Finnigan Element Ⅱ）.We assessed the signal stability of different anion species in different solution mediums,and we found that the most suitable medium for determination of these elements in sea water and sediment pore waters was 0.1% NH₃·H₂O.In addition,we prepared a laboratory sea water standard and obtained its bromine and iodine concentrations.The method gives an analytical precision of 1% and 2% for bromine and iodine measurement,respectively.更多还原