کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5746582 1618803 2017 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Screening of lipophilic marine toxins in marine aquaculture environment using liquid chromatography-mass spectrometry
ترجمه فارسی عنوان
غربالگری توکسین های دریایی لیپوفیلی در محیط کشت آبی دریایی با استفاده از طیف سنجی جرم کروماتوگرافی مایع
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
چکیده انگلیسی
This study aimed to develop an exact mass suspect screening approach to perform finding of multiple lipophilic marine toxins (LMTs) in seawater, suspended particulate matter (SPM), and marine sediment from marine aquaculture area using liquid chromatography-time of flight mass spectrometry (LC-TOF/MS). The method was validated and proven to be reliable for the screening of various LMTs. Then, the method was applied to screen LMTs in marine environmental samples collected from mariculture area of Jiaozhou Bay, China. Okadaic acid (OA), pectenotoxin 2 (PTX2), etc were detected and tentatively identified. Positive detection results were confirmed by liquid chromatography-tandem mass spectrometry (LC-MS/MS), and contents of OA and PTX2 in seawater, SPM and marine sediment were also quantified. The mean concentration of OA ranged from 2.71 to 14.06 ng L−1 in seawater and from 0.78 to 3.34 ng g−1 dry weight in marine sediment. The mean concentration of PTX2 ranged from 0.86 to 7.90 ng L−1 in seawater, from 1.56 to 10.67 ng in SPM obtained from 1 L seawater sample and from 0.95 to 2.23 ng g−1 dry weight in marine sediment. The above results suggested that the proposed method was convenient and reliable for the screening of LMTs in different marine environmental samples. In addition, typical LMTs exist in different marine environmental media of the mariculture area of Jiaozhou Bay, China. Follow-up studies should focus on improving current understanding on the environmental behavior of these LMTs in the marine aquaculture environment.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemosphere - Volume 168, February 2017, Pages 32-40
نویسندگان
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