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中文摘要：
60Coγ射线辐照处理市售大虾，辐照剂量分别设定为1、3、5和7kGy，用弗罗里硅土固相萃取法净化索氏法提取的脂肪，通过GC-MS检测试样液中挥发性碳氢化合物的种类和含量。结果表明，辐照组中C17：1和C16：1两种物质是辐照后新产生的碳氢化合物，回收率分别为78．2％和88．06％，且随辐照剂量的增加，两种物质的含量逐渐增加。
英文摘要：
The shrimp were irradiated by 60Coγ rays at the dose of 1, 3, 5, and 7 kGy. The shrimp was firstly Soxhlet extracted and then purification of the shrimp oil was carried out by solid-phase extraction column to remove the fat and pigment. The hydrocarbons contained in the shrimp were determined by GC-MS among irradiated and unirradiated samples. The results show that C17：1 and C16：1 produces were the new types of hydrocarbons in irradiated shrimp with recovery of 78.2% and 88.06%, respectively. Content of C17：1 and C16：1 increased with the increase of the absorbed dose.
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