Low-Cost Spectrophotometer for In-Situ Detection of Mercury in Water

David F. González-Morales, Oswaldo López-Santos, Olimpo García-Beltrán

Resultado de la investigación: Capítulo del libro/informe/acta de congresoContribución a la conferenciarevisión exhaustiva

2 Citas (Scopus)


This paper presents the design and implementation of a low-cost spectrophotometer (LCSPM) for in-situ detection of mercury in water. The proposed device is composed of a white light emitting diode (LED), a diffraction grating (DG), a rotational positioning system, two photodiodes and a low-cost microcontroller. High-resolution angle displacement of DG allows obtaining a selective projection of the visible spectrum on the studied water and the reference during the same test. All required algorithms are embedded into the microcontroller allowing the transfer of the resulting data to a computer. The capability of the proposed LCSPM for detection of mercuric ions (Hg2+) in water was tested with the help of a synthesized coumarin and then validated by comparison with a standard device.

Idioma originalInglés
Título de la publicación alojada2018 IEEE SENSORS, SENSORS 2018 - Conference Proceedings
EditorialInstitute of Electrical and Electronics Engineers Inc.
ISBN (versión digital)9781538647073
EstadoPublicada - 26 dic 2018
Evento17th IEEE SENSORS Conference, SENSORS 2018 - New Delhi, India
Duración: 28 oct 201831 oct 2018

Serie de la publicación

NombreProceedings of IEEE Sensors
ISSN (versión impresa)1930-0395
ISSN (versión digital)2168-9229


CiudadNew Delhi

Palabras clave

  • in-situ detection
  • low-cost microcontroller
  • Low-cost spectrophotometer
  • water contaminants

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