Development of a Low-Cost SIA-Based Analyser for Water Samples

Overview

Journal J Autom Methods Manag Chem

Date 2011 Jul 26

PMID 21785573

Authors

Moises Knochen

Alejandro Caamano

Heinkel Bentos

Affiliations

Soon will be listed here.

Abstract

An automated multiparametric water analyser was developed and evaluated. The system was based on Sequential Injection Analysis and featured a photometric detection system comprising a tricolour RGB LED source and a photodiode. A program compiled in Visual Basic was used to control the SIA flow system, the LEDs, and the data acquisition and processing. The program loads and executes methods written in ASCII and stored as text files. The system was capable of handling up to four methods simultaneously. When used to carry out methods based on the APHA standard methods, the figures of merit obtained were considered satisfactory for the purpose. The total cost was under US $4600. It was concluded that the analyser is appropriate for routine use and has potential for an increased number of simultaneous methods and for enhanced capabilities if new versions of the software are developed.

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