Title

Long Pathlength Absorbance Spectroscopy: Trace Copper Analysis Using a 4.4 M Liquid Core Waveguide

Document Type

Article

Publication Date

2002

Keywords

Copper, Groundwater, Freshwater, Absorbance, Spectroscopy, Liquid core waveguide

Digital Object Identifier (DOI)

https://doi.org/10.1016/S0039-9140(02)00403-4

Abstract

Procedures are described for measurement of dissolved copper with long pathlength Teflon AF-2400 liquid core waveguides. Using a 4.4 m waveguide, absorbance versus concentration is linear for copper concentrations between 1 and 160 nM. The molar absorbance of copper complexed with bathocuproine disulfonate is nearly identical for pathlengths between 1 cm and 4.4 m. Our 4.4 m waveguide system provided a 0.4 nM detection limit with no sample preconcentration. The methods developed in this study have been used to determine copper concentrations in natural seawater, river water, and commercial drinking water.

Was this content written or created while at USF?

Yes

Citation / Publisher Attribution

Talanta, v. 58, issue 5, p. 891-898

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