Potentiometric titration of calcium in seawater

Xie Shi-nan; Ji Hong; Wu Ai-qin; Chen Guo-hua

doi:10.1007/BF02850579

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Potentiometric titration of calcium in seawater

Updated：2023-05-16

- Potentiometric titration of calcium in seawater
- Journal of Oceanology and Limnology Vol. 15, Issue 1, Pages: 32-35(1997)
- Affiliations：
  
  Department of Marine Chemistry
- Author bio：
- Funds：
- DOI：10.1007/BF02850579
  CLC：
- Published：1997
- Accepted：
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Shi-nan, X., Hong, J., Ai-qin, W. et al. Potentiometric titration of calcium in seawater., Chin. J. Ocean. Limnol. 15, 32–35 (1997). https://doi.org/10.1007/BF02850579
DOI：

Shi-nan, X., Hong, J., Ai-qin, W. et al. Potentiometric titration of calcium in seawater., Chin. J. Ocean. Limnol. 15, 32–35 (1997). https://doi.org/10.1007/BF02850579 DOI：

摘要

Abstract

By using calcium ion selective electrode (Ca ISE) as indicating electrode

saturated calomel electrode (SCE) as reference electrode and EGTA as titrant

calcium in seawater was determined by potentiometric titration in borate buffer solution. This method can reduce observation errors in the determination of the endpoint

and thus provide better analytical precision (<0.08%) than present complexometric titration.

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Keywords

references

Grasshoff, K., 1983. Methods of Seawater Analysis, 2nd edition, Verlag Chemie, Weinheim, Germany. pp. 250–252.

Tsunogai, S., Nishimura, M., Nakaya, S., 1968. Complexometric titration of calcium in the presence of larger amounts of magnesium.Talanta,15: 385–390.

Whitfield, M., 1975. The Electroanalytical Chemistry of Sea Water.In: Chemical Oceanography, Riley, J. P. et al. ed., 2nd edition. Vol. 4, Academic Press, London, p. 50.

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