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2020 Vol.25, Issue 3 Preview Page

Review

Review of Chemical Speciation of Dissolved Zinc in Seawater

해수 중 용존 아연의 화학적 존재 형태 연구 동향

TAEJIN KIM1*
김 태진1*
1Professor, Department of Oceanography, Pukyong National University
1부경대학교 해양학과 조교수
* Corresponding Author
31 August 2020. pp. 67-80
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Abstract

해양 환경에서 용존 미량금속 원소 중 하나인 아연(Zn)은 식물플랑크톤의 성장에 필수적인 미량영양염으로 알려져 있다. 외양 표층에서 대부분의 용존 아연은 용존 유기배위자와 강하게 결합하여 아연-유기착화합물을 형성하게 되고 이로 인해 생물 가용한 자유이온 형태의 아연(Zn2+)의 농도는 총 아연 농도의 5% 이내로 존재하게 된다. 이 논문에서는 아연의 화학적 존재 형태에 대한 개념과 측정 방법에 대해 간단히 소개하고, 주요 연구 사례를 통하여 미량금속의 화학 종조성이 해양 생지화학에 미치는 영향 및 의미, 아연-유기착화합물이 아연의 생물가용성에 미치는 영향, 아연과 결합하여 유기착화합물을 형성하는 용존 유기배위자의 기원에 대해 기술하였다.

Zinc (Zn) is known as an essential micronutrient for phytoplankton in the ocean. In surface waters, most of total dissolved Zn presents as organic complexes, and organic complexation dominates the speciation of Zn in seawater. Organic complexation reduces the bioavailable fraction of Zn, the free metal ion (Zn2+), which present less than 5% in surface waters. In this paper, a brief introduction on chemical speciation of dissolved Zn in seawater and analytical method for chemical speciation measurement is provided. Some representative studies were also introduced to describe the importance of chemical speciation of Zn (or other trace metals) on bioavailability and biogeochemistry in the ocean.

Keywords
Trace metal
Zinc
Clean sampling
Chemical speciation
Organic ligands

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Information
  • Publisher :The Korean Society of Oceanography
  • Publisher(Ko) :한국해양학회
  • Journal Title :The Sea Journal of the Korean Society of Oceanography
  • Journal Title(Ko) :한국해양학회지 바다
  • Volume : 25
  • No :3
  • Pages :67-80
  • Received Date : 2020-07-03
  • Revised Date : 2020-08-07
  • Accepted Date : 2020-08-11
  • DOI :https://doi.org/10.7850/jkso.2020.25.3.067
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