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水源地水库沉积物中生物硅的测定

DOI: 10.11830/ISSN.1000-5013.2013.02.0176

Keywords: 水源地, 水库, 沉积物, 生物硅, 测定方法

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Abstract:

利用福建厦门一级饮用水源地石兜-坂头水库的沉积物样品,采用化学提取法对水库沉积物中生物硅的测定进行确定及优化,建立了一套针对水源地水库沉积物样品的生物硅测定方法.即使用10%的H2O2和1.0 mol?L-1的HCl对样品进行预处理,利用1 mol?L-1的碳酸钠溶液在85 ℃水浴条件下进行单点提取,固液比为0.75 g?L-1.结果表明:该方法的生物硅测定过程准确、简便,相对标准偏差小于10%,可用于水源地水库沉积物生物硅的测定.

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