CORE--STABLE LEAD ISOTOPE AND TRACE ELEMENT ANALYSIS

描述（摘自应用程序） 这个分析核心将被安置在拉蒙特-多尔蒂地球观测站（LDEO） 并将为多个项目提供样品制备和分析， 超级基金申请此核心将主要支持项目8（持续 哈德逊河流域的有机氯）和项目2（来源和 哈德逊河流域和纽约重金属暴露途径 市）。此外，还将对预灰化的 第3年项目3的血液样本。如果这些探索性分析证明 届时将寻求补充资金，以扩大 项目3正在进行的铅同位素分析数量。样品制备 将包括以下基质：土壤、沉积物和颗粒物质 过滤器，以及有限数量的预灰化血液的样品制备 样品项目8和2的工作包括样品制备 通过伽马能谱和稳定的铅同位素进行放射性核素测量 测量.项目2的其他分析包括汞 通过火焰AA和ICP-MS进行浓度和多元素分析。 项目3第3年的工作包括样品制备和Pb同位素 分析预灰化的血液样本。

DESCRIPTION (Taken from application) This analytical core will be housed at Lamont-Doherty Earth Observatory (LDEO) and will provide sample preparation and analyses to multiple projects of this Superfund application. This core will primarily support Project 8 (Persistent organochlorines in the Hudson River Watershed) and Project 2 (Sources and pathways of heavy metal exposure in the Hudson River Watershed and New York City). In addition, exploratory Pb isotope analyses will be made on pre-ashed blood samples from Project 3 in year 3. If these exploratory analyses prove useful, then supplemental funding will be sought at that time to expand the number of Pb isotope analyses being run for Project 3. Sample preparation will include the following matrixes: soil, sediment and particulate matter filters, as well as sample preparation on a limited number of pre-ashed blood samples. Work to be performed for Projects 8 and 2 include sample preparation and radionuclide measurements via gamma spectroscopy and stable Pb isotope measurements. Additional analyses to be performed for Project 2 include Hg concentration and multi-element analyses by flame AA and ICP-MS. Work to be performed for Project 3 in Year 3 includes sample preparation and Pb isotope analysis of pre-ashed blood samples.