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zsmj_23至尊木蟲 (職業(yè)作家)
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[交流]
氣相色譜條件的選擇。
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最近我在一篇文獻(xiàn)上看到如下的實(shí)驗(yàn)條件控制: Gas chromatography experiments (GC) were performed with a Shimadzu GC-16A instrument using a 2m column packed with silicon DC-200 or Carbowax 20m. The nitrogen was used as carrier gas and FID as detector. A temperature programming conditions (120–200℃) was operated for GC experiments. 但是在文獻(xiàn)中我發(fā)現(xiàn)其要測(cè)定的物質(zhì)的沸點(diǎn)一般都在200-300℃之間,將溫度設(shè)在120-200℃間是如何檢測(cè)出來這些物質(zhì)的,是不是與氣相色譜柱的選擇有關(guān),求高人指點(diǎn),不勝感激。 |
銅蟲 (小有名氣)

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