Electrochemical Detection of Peroxide-Based Explosives

摘要提案标题：SGER过氧化物基爆炸物的电化学检测提案编号：CBET-0707038主要研究员：I·F·程，研究所：爱达荷州大学从智力的角度来看，迫切需要能够定量和定性地检测过氧化物基爆炸物的方法和技术。这种努力的基本化学成分还没有被完全描述。这项调查将考察Fenton反应的电化学调解，以此作为检测这类爆炸物的基础。调解的结果是均相Fenton反应和FeIII络合物的电还原为FeII。FeII络合物+RO-或FeIII络合物+RO-+RO。FeIII络合物的电还原电流与过氧化氢浓度的平方根成正比。预计这一过程将是快速、稳健和廉价的。这项拟议的研究将考察该铁络合物的检测限、动力学和络合物的作用。后者是基于循环伏安研究建立的结构-活性关系的考虑。这一小笔探索性研究拨款(SGER)试图证明这种新的方法可以用于检测基于过氧化氢的爆炸物，并将产生更广泛的影响。如果成功，PI预计SGER的这项提案将导致更详细的EXP提案，其中基于Fentons试剂的系统将在精心制定的实验和教学计划中得到进一步探索和表征，此外，PI可能会从其他政府机构以及其他NSF计划要素寻求这些概念的进一步资金。

Abstract Proposal Title: SGER Electrochemical Detection of Peroxide-Based Explosives Proposal Number: CBET-0707038 Principal Investigator: I. F Cheng, Institution: University of IdahoFrom an Intellectual Merit perspective, there is an urgent need for methods and techniques that are able to detect quantitatively and qualitatively peroxide based explosives. The basic chemistries for such endeavor have not been fully described. This investigation will examine the electrochemical mediation of the Fenton Reaction as a basis for detection of this class of explosives. The mediation takes place as a result of the homogeneous Fenton Reaction and the electro-reduction of an FeIII complex to FeII. FeIIcomplex + RO-OR FeIIIcomplex + RO- + RO.. The current due to the electro-reduction of the FeIII complex is proportional to the square root of the peroxide concentration. The process is expected to be rapid, robust, and inexpensive. The proposed study will examine the detection limits, kinetics and the role of the chelate of that iron complex. The latter is based on considerations of the structure-activity relationships developed by cyclic voltammetric studies.This Small Grant for Exploratory Research (SGER) seeks to prove that this novel approach to detection of peroxide based explosives can be utilized and will have Broader Impacts. If successful, the PI anticipates that this SGER proposal will lead to a more detailed EXP proposal where the Fentons Reagent-based system will be further explored and characterized within a carefully crafted experimental and teaching plan, additionally the PI may seek further funding for these concepts from other government agencies as well as other NSF program elements.