Objective: To determine the contents of eicosapentaenoic acid (EPA) , docosapentaenoic acid (DPA) and docosahexaenoic acid(DHA)in harp seal oil by capillary gas chromatography.

目的：用毛细管气相色谱法测定海狗油中二十碳五烯酸（EPA）、二十二碳五烯酸（DPA）和二十二碳六烯酸（DHA）的含量。

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Most big studies confirming the cardiovascular benefits of omega-3s have tested either docosahexaenoic acid (DHA), an omega-3 found in salmon, sardines and breast milk, or another fish oil called eicosapentaenoic acid (EPA).

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According to the National Institutes of Healt h, most fish oil studies have involved the use of 300 to 3, 000 mg of the essential fatty acids docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA).

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