Evaluation of Specific Ultraviolet Absorbance as an Indicator of the Chemical Composition and Reactivity of Dissolved Organic Carbon

L. Weishaar, James; R. Aiken, George; A. Bergamaschi, Brian; S. Fram, Miranda; Fujii, Roger; Mopper, Kenneth

doi:10.1021/es030360x

Public

Evaluation of Specific Ultraviolet Absorbance as an Indicator of the Chemical Composition and Reactivity of Dissolved Organic Carbon

Published in Environmental Science & Technology • Sep 17, 2003

Authors:

James L. Weishaar

George R. Aiken

Brian A. Bergamaschi

Abstract

Specific UV absorbance (SUVA) is defined as the UV absorbance of a water sample at a given wavelength normalized for dissolved organic carbon (DOC) concentration. Our data indicate that SUVA, determined at 254 nm, is strongly correlated with percent aromaticity as determined by 13C NMR for 13 organi...

Subject

Dissolved organic carbon

Absorbance

Tetramethylammonium hydroxide

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