Multi-commutation in flow analysis: Recent developments and applications

Author(s)

Feres‚ M.A. ; Fortes‚ P.R. ; Zagatto‚ E.A.G. ; Santos‚ J.L.M. ; Lima‚ J.L.F.C.

• Document type: Journal article
• Source: Analytica Chimica Acta; v. 618, n. 1, p. 1-17, 2008.

Abstract

The concept of multi-commutation in flow analysis is revisited, and emphasis is given to recent methodological and applicative achievements. Multi-commutation is compatible with different flow patterns (unsegmented, segmented, pulsed, tandem) and amenable to concentration-oriented feedback mechanisms. Its exploitation has led to significant attainments mainly in relation to versatility of the flow system. Characteristics and potentialities of the multi-commuted flow systems are discussed, and guidelines for assisting methodological implementation are given. The number of applications has experienced remarkable increase during last years; therefore, the applicative part of this review is focused on the recent noteworthy applications, mainly in relation to environmental, agronomical, pharmaceutical, biological, food and industrial samples. (C) 2008 Elsevier B.V. All rights reserved. (AU)

• FAPESP's process: 06/03859-9 - Development of analytical flow systems exploiting feedback mechanisms, improved conditions for detection and/or multivariate calibration: application to agro-industrial or environmental samples
• Grantee: Paula Regina Fortes
• Support Opportunities: Scholarships in Brazil - Doctorate
• FAPESP's process: 06/03718-6 - Spectrophotometric determination of pesticide residues in soils and natural waters using flow analysis system with bio columns for in line concentration
• Grantee: Mário Almir Feres Junior
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• FAPESP's process: 06/07309-3 - Novel analytical strategies for studies involving biomolecules
• Grantee: Elias Ayres Guidetti Zagatto
• Support Opportunities: Research Projects - Thematic Grants