Secondly, the extraction method of PFOS and PFOA in the textiles has been studied.

其次，对纺织品中pfos和PFOA的萃取方法进行了研究。

youdao

Perfluorooctane sulfonate (PFOS) is widely used in production of drug packaging materials, due to its non-hydrophilic and non-lipophilic properties.

全氟辛烷磺酸类物质（PFOS）因其疏水、疏油的特性，在药品包装领域得到了广泛应用。

youdao

One of the newly banned chemicals is perflurooctane sulfonic acid,or PFOS.

VOA: special.2009.06.23

Guernsey Water has insisted the levels of PFOS are not dangerous.

BBC: Assurances over Guernsey water