Laboratory calibration setup based on an electrochemical O2 generator.

Bittig, Henry C. and Körtzinger, Arne (2011) Laboratory calibration setup based on an electrochemical O2 generator. [Talk] In: ARGO Oxygen Meeting. , 25.-27.05.2011, Brest, France .

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Abstract

Based on an electrochemical oxygen generator a laboratory setup for the calibration of Aanderaa oxygen optodes was built. By control of the environmental conditions (electrolysis current, flow rate, temperature) the variable space of the sensors can be characterized both in O2/Phase as well as in temperature. Within 0 - 300 umol/l and 2 - 35 °C any point can be generated with a high stability and Winkler samples can be taken for reference. Several sensors of different types can be calibrated at the same time in a row with. First results show perfect agreement with field data acquired just after calibration. A later deployment showed an offset of 7 umol/l while the optode O2 response was grasped by the calibration.

Document Type: Conference or Workshop Item (Talk)
Keywords: Chemistry
Research affiliation: OceanRep > GEOMAR > FB2 Marine Biogeochemistry > FB2-CH Chemical Oceanography
Date Deposited: 13 Oct 2011 12:43
Last Modified: 23 Feb 2012 06:14
URI: http://oceanrep.geomar.de/id/eprint/12377

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