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These higher boiling components will be removed by vacuum distillation of the provided sample to permit facile gas chromatographic separation. 爲(wèi)了能順利地進(jìn)行氣相色層分離，可以對(duì)所提供的樣品進(jìn)行真空蒸餾，把較高沸點(diǎn)的混郃物除去。