中文摘要：

采用改进BCR方法提取国家土壤成分分析标准物质（GBW07401,GBW07402）和水系沉积物成分分析标准物质（GBW07307,GBW07309）中的锑元素化学形态,用ICP-MS进行测定.各个形态含量之和与样品中元素总量测定值基本相符,回收率在108%~125%.同时以湖底沉积物顺序提取微量元素标准物质（GBW07436）作为质控样品验证方法的准确度,检测结果与标准值吻合良好.

英文摘要：

Optimized BCR sequential extraction procedure was applied to Chinese reference materials（GBW07401,GBW07402,GBW07307,GBW07309）.Antimony concentration was measured by ICP-MS.The sum of extractable mass fractions of Sb plus residue concentration was compared to total content.Recovery was108%-125%.Lake sediment for extractable trace elements（GBW07436）was used for quality control and the result was in agreement with certified values.