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Uso de hardware de código fonte aberto "Arduino" para acionamento de dispositivo solenoide em sistemas de análises em fluxo

2013; Brazilian Chemical Society; Volume: 36; Issue: 8 Linguagem: Inglês

10.1590/s0100-40422013000800023

ISSN

1678-7064

Autores

Marcos Y. Kamogawa, Jeová Correia Miranda,

Tópico(s)

Water Quality Monitoring Technologies

Resumo

This paper describes the use of the open source hardware platform, denominated "Arduino", for controlling solenoid valves for solutions handling in flow analysis systems.System assessment was carried out by spectrophotometric determination of iron (II) in natural water.The sampling rate was estimated as 45 determinations per hour and the coefficient of variation was lower than 3%.Per determination, 208 µg of 1-10-phenanthroline and ascorbic acid were consumed, generating 1.3 mL of waste."Arduino" proved a reliable microcontroller with low cost and simple interfacing, allowing USB communication for solenoid device switching in flow systems.

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