Equipment supporting the study of inorganic and organic sulphur-based compounds on the quality of water

支持无机和有机硫基化合物对水质影响研究的设备

• 批准号: 345524-2007
• 负责人: Kariuki, Stephen
• 金额: $ 2.9万
• 依托单位: Nipissing University
• 依托单位国家: 加拿大
• 项目类别: Research Tools and Instruments - Category 1 (<$150,000)
• 财政年份: 2006
• 资助国家: 加拿大
• 起止时间: 2006-01-01 至 2007-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=325967
• 关键词: Equipment; supporting; study; inorganic; organic

The equipment in this grant will be used to support my study involving the chemistry of low oxidation-state inorganic and organic sulphur compounds that are found in various water distribution systems. The study is ultimately intended to provide solutions to the odour problems associated with sulphur compounds in water. Most of the sulphur compounds to be studied are not available commercially and will need to be synthesized for the proposed study. Nearly all of the low oxidation-state inorganic sulphur compounds are very unstable in the presence of air and other oxidizing environments. Therefore, the analysis of these compounds ought to be carried out using an instrument capable of providing an inert environment during the analysis. An Electrochemical Analyzer (EA), one of the instruments that I am requesting funding for, has this capability. It provides qualitative and quantitative information that arises from the reduction and oxidation processes of a compound. An EA provides several electrochemical techniques such as cyclic voltammetry (CV), linear and pulse polarography, and chronopotentiometry. The information gathered from these electrochemical techniques will enable me to characterize the synthesized organic and inorganic sulphur compounds by utilizing the uniqueness of the many oxidation states of the sulphur element which range from -2 to +6. Also, speciation of reduced sulphur compounds found in various water systems will easily be accomplished using this equipment. A very unique feature of an EA is its ability to provide an inert atmosphere during the analysis of compounds that are prone to aerial degradation. I would also like to request funding for an Aerobic Chamber. The chamber will allow me to conduct some experiments in an air excluded environment. This will minimize the chances of sulphur compounds degrading, which they are prone to. The chamber will allow for a safe working environment by containing the commonly encountered sulphur odours. The ultimate results obtained using these requested pieces of equipment will find valuable application in the improvement of drinking water quality here in Canada and elsewhere.

该补助金中的设备将用于支持我的研究，涉及各种配水系统中发现的低氧化态无机和有机硫化合物的化学。这项研究的最终目的是提供解决与水中含硫化合物有关的气味问题的办法。大多数待研究的硫化合物在商业上无法获得，因此需要为拟议的研究进行合成。几乎所有的低氧化态无机硫化合物在空气和其他氧化环境中都非常不稳定。因此，这些化合物的分析应该使用能够在分析期间提供惰性环境的仪器进行。电化学分析仪（EA），我申请资助的仪器之一，具有这种能力。它提供了化合物的还原和氧化过程中产生的定性和定量信息。EA提供了几种电化学技术，如循环伏安法（CV）、线性和脉冲极谱法以及计时电位法。从这些电化学技术中收集的信息将使我能够通过利用硫元素的许多氧化态的独特性来表征合成的有机和无机硫化合物，这些氧化态的范围从-2到+6。此外，各种水系统中发现的还原硫化合物的形态将很容易使用该设备完成。EA的一个非常独特的功能是它能够在分析易于空气降解的化合物期间提供惰性气氛。我还想申请资助一个有氧室。这个实验室可以让我在隔绝空气的环境中进行一些实验。这将最大限度地减少硫化合物降解的机会，而硫化合物很容易降解。通过控制常见的硫磺气味，该室将提供安全的工作环境。使用这些要求的设备获得的最终结果将在加拿大和其他地方的饮用水质量改善中找到有价值的应用。