用固相萃取的方法对样品进行预处理，再进行GC - MS分析测定，对饮用水源水中的痕量半挥发性有机化合物进行了测定，并对结果进行了讨论。

This paper described the fact that we pre-process sample by SPE, then Semi-volatile Organic compounds in drink source water were analyzed by GC-MS method, the result was discussed.

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它是半流质的有机化合物，由树脂在挥发性油中溶解而成，松脂可以被提炼成松脂挥发油和非挥发性松脂。

Semifluid mixtures of organic compounds consisting of resins dissolved in a volatile oil, turpentines can be distilled into the volatile oil of turpentine and the nonvolatile rosin.

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