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In addition, a new form of solid phase extraction column has been investigated.
另外，对一种新形式的固相萃取柱进行了初步研究。
Method: Sotalol in plasma sample was enriched with C18 solid phase extraction column .
方法：以C18固相萃取小柱预处理样品。
This paper describes an imperfect pulse injection stimulus-response technique to study the axial mixing in the extraction column.
本文以非理想脉冲注入的扰动-响应技术，进行萃取柱轴向混合的研究。
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