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山东半岛南部近海铬的形态和分布
黄华瑞1, 庞学忠1
中国科学院海洋研究所
摘要:
本文采用无火焰原子吸收分光光度法测定海水不同形态的铬。研究表明:山东半岛南部近海颗粒铬对总铬的比率在60%以上,是铬存在的主要形态;六价铬对总铬比率低于3%,是最次要的形态;三价铬对总溶解铬的比率在80%以上,所以三价铬在溶解态中占主要形态。铬在该海域的分布特征是:丁字湾口为高值区,崂山湾为低值区。
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基金项目:
CHROMIUM SPECIATION AND DISTRIBUTION IN SOUTHERN COASTAL SEA OF SHANDONG PENINSULA
Abstract:
Research indicated that ratio of paniculate chromium to total chromium is over 60%, a rather dominant chromiun speciation in this coastal sea. Hexavalent chromium is in less speciation, ratio of hexavalent chromium to total chromium is less than 3%. Trivalent chromium in dissolved state occupies a principal position, so that ratio of trivalent chromium to total dissolved chromium is more than 80%. Chromium distribution is high in mouth of Dingzi Bay but low in laoshan Bay.
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