[目的]建立南极磷虾氟形态分析方法,为南极磷虾的开发利用提供技术支持.[方法]采用逐级化学—超声波浸提技术对南极磷虾粉中氟的赋存形态进行分析研究,并对提取条件进行优化.[结果]南极磷虾粉中氟的赋存形态可分为水溶态氟、可交换态氟、氧化态氟、有机束缚态氟和残渣态氟,分别占总氟的15.7％、17.1％、31.7％、21.5％和14.0％,总氟含量为2518.6 mg/kg,各形态氟含量次序为:氧化态氟＞有机束缚态氟＞可交换态氟＞水溶态氟＞残渣态氟.[结论]采用逐级化学—超声波浸提技术能有效地定量研究南极磷虾中氟的赋存形态.%[Objective]This research intended to construct the analytical method of fluorine form in order to provide technical support to the development of Antarctic krill. [Method] Fluorine form in Antarctic krill was analyzed by sequential chemical extraction, then its extraction conditions were optimized. [ Result ] The results showed that forms of fluorine could be divided into five categories: water soluble state (15.7%), exchangeable state (17.1%), oxidation state (31.7%), organic-bound state (21.5%), and residue state (14.0%). Total fluorine content was 2518.6 mg/kg, and the contents of fluorine after the sequence were as follows: oxidation state >organic-bound state>exchangeable state>water soluble state> residue state. [Conclusion]Sequential chemical extraction was effective in quantitatively studying the speciation of fluorine in Antarctic krill.
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