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开发一种基于UV配对二极管-光电二极管的新型酸盐便携式测量系统

Samuel Fernandes^1,2, Mouhaydine Tlemçani^1,2, Daniele Bortoli^2,3,4

¹Department of Mechatronics Engineering, School of Science and Technology, Universidade de Évora, 7000-671 Évora, Portugal.

Sensors (Basel, Switzerland)

|August 29, 2024

概括

一个新的便携式酸盐测量系统 (NPMS) 提供无试剂,低成本的水质监测. 这种紫外线设备准确地实时测量酸盐水平,有助于保护水生生态系统和人类健康.

科学领域:

环境科学环境科学
分析化学分析化学
仪器仪表工程仪器仪表工程

背景情况:

酸盐污染在水生环境中构成重大生态和人类健康风险.
有效的水质管理需要可靠的酸盐监测.
现有的监测方法可能是昂贵的或缺乏可移植性用于现场使用.

研究的目的:

开发一种新的,便携式的,无试剂的系统,用于精确测量水中的酸盐度.
创建一个具有成本效益的仪器,利用紫外线吸收原理.
为了实现近乎实时的现场水质评估.

主要方法:

使用低成本电子元件和3D打印的外开发一个酸盐便携式测量系统 (NPMS).
应用贝尔-兰伯特定律通过吸收紫外线光线 (295-315 nm) 来量化酸盐.
集成的紫外线传感器,LED,微控制器,和其他必不可少的组件,为一个独立的单元.

主要成果:

该NPMS显示了精确的酸盐测量,与经典的UV-Vis光谱相对应强烈 (Nicolet Evolution 300).
对于超过5毫克NO3−/L的酸盐度,观察到有效的性能.
便携式设计促进了现场部署和近乎实时的分析.

结论:

开发的酸盐便携式测量系统为现场酸盐监测提供了可行的,具有成本效益的解决方案.
该系统的可移植性和准确性支持增强的水质管理战略.
这种无试剂的方法有助于更可持续的环境监测实践.

关键词:

紫外线紫外线紫外线吸收性是一种吸收性.化学化学化学化学我们的环境环境环境环境环境环境环境环境人类健康人类健康人类健康酸盐酸盐的使用方法这是一个光学模型.在光电子电子系统中.便携式设备是一种便携式设备.实时实时的时间.这是光谱学.水水水的水水的水

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相关概念视频

UV–Vis Spectrometers

UV–Vis Spectrometers

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.