Research Core

项目摘要 杜克环境分析实验室（DEAL）中心的目的是提供一套全面的 分析服务，以支持流行病学家和卫生研究人员进行研究，重点是 环境污染物暴露对人类健康的影响。环境样品分析 资源（ESAR）核心的交易中心将有助于实现这一愿景，提供分析服务， 从不同的样品介质中分析有机化学品和无机元素。ESAR将利用切割- 利用高灵敏度的化学品进行可疑筛选和非靶向分析的边缘技术和方法， 分辨率质谱仪，并将采样分为三个不同的实验室：目标有机， 目标无机物和非目标有机物。所有三个实验室都将提供咨询， 向HHEAR网络研究人员提供有关实验设计、暴露评估、样本收集和 处理，由DEAL行政核心的项目管理专业知识协调工作。的 目标有机污染物分析实验室（由石楠斯台普顿博士指导）将提供以下服务： 有机污染物的样品制备、提取和定量分析（例如，阻燃剂， 聚氟烷基物质、邻苯二甲酸酯、增塑剂等）不同的环境媒介。目标 无机分析实验室（由Heileen Hsu-Kim博士领导）将提供相同的微量元素服务 (e.g.,金属），重点是物种形成和生物可及性。最后，非目标高分辨率质量 光谱实验室将提供高分辨率，准确的质谱服务，用于 开发生物学方法和方法，以帮助衡量人类的总体情况， 暴露于化学品（这项工作将由李弗格森博士指导）。ESAR的独特结构将 允许联合主任在他们自己的实验室中利用他们的相关专业知识，同时也进行协作和共享 信息，以实现ESAR的总体目标。此外，ESAR联合主任将 与开发核心双向协作，提高提取效率 方法，在靶向和非靶向方法工作流程中建立一致性，并扩展 目标有机污染物分析实验室，因为新出现的污染物被确定。

PROJECT ABSTRACT The purpose of the Duke Environmental Analysis Laboratory (DEAL) Hub is to offer a comprehensive suite of analytical services to support epidemiologists and health researchers conducting studies focusing on the impact of environmental contaminant exposures on human health. The Environmental Sample Analysis Resource (ESAR) Core of the DEAL Hub will help achieve this vision by providing analytical services for the analysis of organic chemicals and inorganic elements from diverse sample media. ESAR will utilize cutting- edge technology and approaches for suspect-screening and non-targeted analyses of chemicals using high- resolution mass spectrometry and will separate sampling into three distinct laboratories: Targeted Organic, Targeted Inorganic, and Untargeted Organic. All three of the laboratories will provide consultation and advice to HHEAR Network researchers on experimental design, exposure assessment, sample collection, and processing, efforts coordinated by the project management expertise of the DEAL Administrative Core. The Targeted Organic Contaminant Analysis Lab (directed by Dr. Heather Stapleton) will provide services for sample preparation, extraction and quantitative analysis of organic contaminants (e.g., flame retardants, polyflouroalkyl substances, phthalates, plasticizers, etc.) in diverse environmental media. The Targeted Inorganic Analysis Lab (directed by Dr. Heileen Hsu-Kim) will provide the same services for trace elements (e.g., metal) with a focus on speciation and bioaccessibility. Finally, the Non-Targeted High Resolution Mass Spectrometry Lab will provide high-resolution, accurate-mass mass spectrometry services for use in developing exposomics approaches and methodologies in order to help measure the totality of human exposure to chemicals (this effort will be directed by Dr. Lee Ferguson). The unique structure of the ESAR will allow the Co-Directors to utilize their relevant expertise in their own labs, while also collaborating and sharing information in order to achieve the overarching aims of the ESAR. In addition, the ESAR Co-directors will work collaboratively and bi-directionally with the Developmental Core to improve the efficiency of extraction methods, build consistency in the targeted and non-targeted method workflows, and expand the analyte list of the Targeted Organic Contaminant Analysis Lab as new emerging contaminants are identified.