气相色谱法测定马齿苋中的EPA和DHA

The Determination of EPA and DHA in Portulaca Oleraceal by Gas Chromatography

本文采用气相色谱法测定马齿苋中的EPA和DHA，用FID检测器检测定量。方法检测限：EPA为9．6×10－10g；DHA为6．8×10－9g。相对标准偏差：EPA为1．87％；DHA为3．66％。平均回收率：EPA为98．10％，DHA为96．22％。

EPA and DHA in portulaca oleraceal have been determined and quantitatively analyzed with FID by Gas chromatography in thes article. The detection limit of EPA is 9. 6× 10-10 g and DHA 6. 8× 10-9 g. The relative standard deviation of EPA is 1. 87% and DHA 3. 66%. The average recovery of EPA is 98. 10% and DHA 96. 22%.