Journal
ANALYTICA CHIMICA ACTA
Volume 739, Issue -, Pages 1-13Publisher
ELSEVIER
DOI: 10.1016/j.aca.2012.05.058
Keywords
Liquid core waveguide (LCW); Liquid waveguide capillary cell (LWCC); Spectrophotometric methods; Flow analysis; Long path-length spectrophotometry; Nanomolar detection limit
Categories
Funding
- Fundacao para a Ciencia e a Tecnologia (FCT) [PTDC/AMB/64441/2006, PTDC/AAC-AMB/104882/2008, SFRH/BD/30621/2006, SFRH/BPD/81384, PEst-C/EQB/LA0006/2011, PEst-C/EQB/LA0016/2011]
- FSE
- Ministerio da Ciencia, Tecnologia e Ensino Superior (MCTES)
- Fundação para a Ciência e a Tecnologia [PTDC/AMB/64441/2006, SFRH/BD/30621/2006, PTDC/AAC-AMB/104882/2008] Funding Source: FCT
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Incorporation of long path length liquid waveguide capillary cell (LWCC or LCW) into spectrometric detection systems can increase the sensitivity of these by orders of magnitude (up to 500 times), and consequently can reduce the detection limits. The combination of the long path length spectrophotometry with flow methodologies can provide analytical solutions for various challenges in the field of environmental, biochemical and food chemistry. In this present work, the analytical applications of the long capillary cells are summarised and critically discussed. A historical overview of the cell development is given; applications in different areas are presented and grouped by analyte type. Major improvements achieved based on the use of the LWCC in the analytical characteristics (like sensitivity and detection limit) are emphasised while some of the limitations are also discussed. (C) 2012 Elsevier B.V. All rights reserved.
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