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相关概念视频

UV–Vis Spectrometers01:14

UV–Vis Spectrometers

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The absorbance of UV and visible (UV–visible) radiations is measured using a UV–visible spectrophotometer. Deuterium lamps, which emit UV radiation, and tungsten lamps, which produce radiation in the visible region, are used as light sources in UV–visible spectrophotometers. A monochromator or prism is used for diffraction grating, i.e., to split the incoming radiation into different wavelengths. A system of slits is used to focus the desired wavelength on the sample cell.
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允许在液态光谱仪中对固体样本进行分析,使用3D打印的片.

Jacques Doumani1, Henry Mansfield1, Andrey Baydin1,2,3

  • 1Department of Electrical and Computer Engineering, Rice University, Houston, TX, 77005, USA.

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|February 20, 2025
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概括

研究人员开发了可负担得起的3D打印的光谱管,使UV-VIS和CD仪器能够进行液体和固体样本分析. 这一创新以低成本扩大了实验能力.

关键词:
碳纳米管 碳纳米管圆形二元化是指一个圆形的二元化.一个小碗,一个小碗.频谱光度测量是一种光谱光度测量.

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科学领域:

  • 频谱学是一种光谱学.
  • 材料科学 材料科学 材料科学
  • 通过3D打印打印3D打印.

背景情况:

  • 商用光谱仪器主要支持液体样本.
  • 固体样本的适配器通常是昂贵的或不可用.
  • 对于液体和固体分析而言,存在对多功能的需求.

研究的目的:

  • 设计和制造低成本的3D打印,用于固体样本分析.
  • 为了使液体和固体样品的测量使用单一的光谱系统.
  • 为了证明这些水瓶在UV-VIS和圆二极化 (CD) 光谱学中的实用性.

主要方法:

  • 3D打印 (化沉积建模和立体石刻) 用于制造的原型.
  • 创建了两种车版本:一种是固定定向的,一种是旋转的.
  • 在标准的商业光谱仪器中测试了.

主要成果:

  • 成功制造了用于光谱学的功能性3D打印.
  • 证明了测量固体样品光学性能的能力,特别是对齐的碳纳米管膜.
  • 通过使用3D打印的酒杯成功进行了UV-VIS和CD光谱测量.

结论:

  • 通过3D打印的提供了一种成本效益高的解决方案,用于分析固体样本的光谱学.
  • 这些适配器增强了现有的商业光谱系统的多功能性.
  • 开发的管子方便了更广泛的低成本光学属性研究.