本文主要综述了毛细管内固相微萃取技术的萃取模式、固定相制备、萃取参数优化及与色谱在线联用情况。
This review focused on extraction mode, preparation of stationary phases, optimization of parameters and its on-line coupling with chromatograph.
滤杯通过卡箍与滤头固定在一起，然后与紧 固在过滤支架上的蝶阀相固定。
The filter bowl is fixed together with the filter head through the clamp, and is fixed with the dish valve which is fastened on the filter holder.
以炼厂丙烯为原料，采用固定床反应器液相法和气液固三相法合成异丙苯，考察了不同工艺中炼厂丙烯对催化剂寿命的影响。
The influence of crude propylene on the life of FHI-01 catalyst for synthesis of cumene by liquid-phase and gas-liquid-solid three phases method was studied.
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