New Zealand Journal of Marine and Freshwater Research abstracts

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Spectrophotometric determination of dissolved organic carbon in some South Island streams and rivers (Note)

KEVIN J. COLLIER

Department of Zoology University of Canterbury Private Bag, Christchurch New Zealand

Abstract Absorbance at 360 nm and dissolved organic carbon (DOC) concentration were measured on 47 filtered water samples collected from streams and rivers of the west coast of South Island, New Zealand. The regression equation (DOC (g m-³) = 59.6 Abs, _cm + 1.9) calculated from the data, reliably predicted DOC concentration within the range 1.6-43.2 gm~³. This relationship is similar to that found fsr some Venezuelan and south-eastern United Stales waters indicating that it may have widespread utility for estimating DOC concentrations in soft waters where DOC is dominated by humic substances

Keywords dissolved organic carborf; DOC; absorbance; 360 nm; spectrophotometrjf; stream water; river water

New Zealand Journal of Marine and Freshwater Research, 1987, Vol. 21: 349-351 0028-8330/87/2102-0349$2.50/0 © Crown copyright 1987 Received 4 June 1986; accepted 17 September 1986

PDF file of entire paper: medium quality (230K); (scanned from paper original: notes about this process)

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