Articles | Volume 19, issue 4
Hydrol. Earth Syst. Sci., 19, 1589–1598, 2015

Special issue: High resolution monitoring strategies for nutrients in groundwater...

Hydrol. Earth Syst. Sci., 19, 1589–1598, 2015

Technical note 02 Apr 2015

Technical note | 02 Apr 2015

Technical Note: Field experiences using UV/VIS sensors for high-resolution monitoring of nitrate in groundwater

M. Huebsch et al.

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Cited articles

Armstrong, F.: Determination of Nitrate in Water Ultraviolet Spectrophotometry, Anal. Chem., 35, 1292–1294, 1963.
Australian and New Zealand Environment and Conservation Council (ANZECC): Australian Water Quality Guidelines for Fresh and Marine Waters, 314 pp., available at: (last access: 22 February 2015), 2000.
Beaupré, M.: Characterization of on-line sensors for water quality monitoring and process control, MSc thesis, Faculté des sciences et genie Université Laval Québec, Quebec, Canada, 151 pp., 2010.
Bende-Michl, U. and Hairsine, P. B.: A systematic approach to choosing an automated nutrient analyser for river monitoring, J. Environ. Monit., 12, 127–134, 2010.
Chýlek, P.: Light scattering by small particles in an absorbing medium, J. Opt. Soc. Am., 67, 561–563,, 1977.
Short summary
Two different in situ spectrophotometers, which were used in the field to determine highly time resolved nitrate-nitrogen (NO3-N) concentrations at two distinct spring discharge sites, are compared: a double and a multiple wavelength spectrophotometer. The objective of the study was to review the hardware options, determine ease of calibration, accuracy, influence of additional substances and to assess positive and negative aspects of the two sensors as well as troubleshooting and trade-offs.