沉积物中脂溶性海洋藻毒素的分布特征：以中国胶州湾为例。
Distribution characteristics of lipophilic marine phycotoxins in the sediment: A case study in Jiaozhou Bay, China.
机构信息
Key Laboratory of Tropical Marine Bio-resources and Ecology, Guangdong Provincial Key Laboratory of Applied Marine Biology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; Southern Marine Science and Engineering Guangdong Laboratory, Guangzhou 511458, China; Institution of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, China.
CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China.
出版信息
Mar Pollut Bull. 2021 Jan;162:111908. doi: 10.1016/j.marpolbul.2020.111908. Epub 2020 Dec 15.
Marine sediments serve as a sink for environmental pollutants, such as lipophilic marine phycotoxins (LMPs). To reveal the fate of LMPs, we studied their distribution characteristics in sediments. From January 2016 to August 2017, we sampled surface sediments from Jiaozhou Bay (JZB) of the North Yellow Sea, and their solid-phase extracts were analyzed using liquid chromatography-tandem mass spectrometry. Three LMPs viz. okadaic acid (OA), dinophysistoxin-1 (DTX1), and pectentoxin-2 (PTX2) were predominant in the sediments. Also, PTX2 distribution was more extensive in the area, while OA and DTX1 were more concentrated. Having the same toxigenic algae origin, the spatial distribution of OA, DTX1, and PTX2 in the sediments was similar.
海洋沉积物是环境污染物的汇，如亲脂性海洋藻毒素（LMPs）。为了揭示 LMPs 的归宿，我们研究了它们在沉积物中的分布特征。2016 年 1 月至 2017 年 8 月，我们从北黄海胶州湾采集了表层沉积物，并使用液相色谱-串联质谱法对其固相提取物进行了分析。三种 LMPs，即 okadaic 酸（OA）、dinophysistoxin-1（DTX1）和pectentoxin-2（PTX2）在沉积物中占优势。此外，PTX2 在该区域的分布更为广泛，而 OA 和 DTX1 的浓度更高。由于具有相同的产毒藻类来源，沉积物中 OA、DTX1 和 PTX2 的空间分布相似。
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