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Grey relational analysis on the relation between marine environmental factors and oxidation-reduction potential

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Abstract

The effects of marine environmental factors-temperature (T), dissolved oxygen (DO), salinity (S) and pH-on the oxidation-reduction potential (ORP) of natural seawater were studied in laboratory. The results show an indistinct relationship between these four factors and the ORP, but they did impact the ORP. Common mathematical methods were not applicable for describing the relationship. Therefore, a grey relational analysis (GRA) method was developed. The degrees of correlation were calculated according to GRA and the values of T, pH, DO and S were 0.744, 0.710, 0.692 and 0.690, respectively. From these values, the relations of these factors to the ORP could be described and evaluated, and those of T and pH were relatively major. In general, ORP is influenced by the synergic effect of T, DO, pH and S, with no single factor having an outstanding role.

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Authors and Affiliations

  1. Marine Environmental Engineering Center, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China

    Xueqing Liu  (刘学庆), Dun Zhang  (张盾) & Yantao Li  (李言涛)

  2. College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao, 266100, China

    Jia Wang  (王佳)

Authors
  1. Xueqing Liu  (刘学庆)
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  2. Jia Wang  (王佳)
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  3. Dun Zhang  (张盾)
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  4. Yantao Li  (李言涛)
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Corresponding author

Correspondence to Xueqing Liu  (刘学庆).

Additional information

Supporte by the Knowledge Innovation Project of the Chinese Academy of Sciences (No. KZCX2-YW-210), National Key Technology Research and Development Program (No.2007BAB27B04), and the High Technology Research and Development Program of China (No. 2001AA635080).

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Liu, X., Wang, J., Zhang, D. et al. Grey relational analysis on the relation between marine environmental factors and oxidation-reduction potential. Chin. J. Ocean. Limnol. 27, 583–586 (2009). https://doi.org/10.1007/s00343-009-9152-9

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  • DOI: https://doi.org/10.1007/s00343-009-9152-9

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