Facultad de Ingeniería, Universidad de Ibagué, Carrera 22 Calle 67, Ibagué 730002, Colombia.
Facultad de Ingeniería Forestal, Universidad del Tolima, Altos de Santa Helena, Ibagué 730001, Colombia.
Sensors (Basel). 2020 Feb 8;20(3):906. doi: 10.3390/s20030906.
Detection of an environmental contaminant requires the use of expensive measurement equipment, which limits the realization of in situ tests because of their high cost, their limited portability, or the extended time duration of the tests. This paper presents in detail the development of a portable low-cost spectrophotometer which, by using a specialized chemosensor, allows detection of mercuric ions (Hg), providing effective and accurate results. Design specifications for all the stages assembling the spectrophotometer and the elements selected to build them are presented along with the process to synthesize the chemosensor and the tests developed to validate its performance in comparison with a high-precision commercial laboratory spectrophotometer.
检测环境污染物需要使用昂贵的测量设备，由于其成本高、便携性有限或测试时间延长，这限制了现场测试的实现。本文详细介绍了一种便携式低成本分光光度计的开发，该分光光度计使用专用化学传感器，可以检测汞离子（Hg），提供有效和准确的结果。本文介绍了组装分光光度计的所有阶段的设计规格以及用于构建它们的元件，以及合成化学传感器的过程和开发的测试，以将其性能与高精度商业实验室分光光度计进行比较。
