A UV-vis-NIR spectrometer dedicated to the study of new catalysts & materials

本申请申请购买一台紫外-可见-近红外光谱仪（UV-vis-NIR），用于我们在材料制备领域的研究。紫外-可见-近红外光谱仪测量各种物质吸收的光的类型，这样吸收的光的类型就成为一个标志，使我们能够识别所研究的物质。我们正在寻找的仪器可以根据其能量或波长来测量吸收光的类型。例如，一些化合物吸收能量相对较高的紫外光，而另一些化合物吸收可见光（人眼检测到的光），还有一些化合物吸收能量低得多的红外光。通过确定某种物质吸收哪种类型的光，我们可以得出其分子结构的结论。或者，我们可以使用这些信息（称为化合物的“光谱”）作为该物质的唯一标识符，这样我们就可以在涉及物质混合物的各种实验中跟踪它。虽然紫外-可见-近红外光谱不是鉴定物质的唯一手段，但它是鉴定所谓顺磁性物质的最经济和实用的技术之一，顺磁性物质是指在其价壳层中有一个未配对电子的化合物。由于我们的研究涉及大量这样的顺磁物种，我们的研究在很大程度上依赖于获得这样的仪器。我们正在寻找的工具不仅可以促进我们的研究，还可以用于培养我们的学生。

This proposal requests funds for the purchase of an Ultraviolte-visible-NearIR (UV-vis-NIR) spectrometer to be used in our research studies in the area of materials preparation.A UV-vis-NIR spectrometer measures the type of light absorbed by various substances such that the type of light absorbed becomes a signature that allows us to identify the substance studied. The instrument we are seeking can measure the type of absorbed light according to its energy or wavelength. For example, some compounds absorb ultraviolt light, which is of relatively high energy, while other compounds absorb visible light (the light detected by the human eye), and still others absorb Infrared light, which is of much lower energy. By determining what type of light is absorbed by a given substance, we can draw conclusions on its molecular structure. Alternatively, we can use this information (referred to as the "spectrum" of the compound) as a unique identifier for that substance and thus we can track it during various experiments involving mixtures of substances.Although UV-vis-NIR spectroscopy is not the only means of identifying substances, it is one of the most economical and practical techniques for identifying substances that are called paramagnetic, which are compounds that have an unpaired electron in their valence shells. Since our research studies involve a good number of such paramagnetic species, our studies rely heavily on access to such an instrument.   The instrument we are seeking will not only advance our research studies, it will also serve for the purpose of training our students.