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langxuanfe銅蟲 (初入文壇)
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[交流]
【求助】waterman No1濾紙是定性濾紙還是定量濾紙
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檢測(cè)蛋黃游離脂肪時(shí)使用的waterman NO1濾紙是定性濾紙還是定量濾紙?具體方法如下。Yolk(3 g)was homogenised with 35 ml of n-hexane/2-propanol(3:2 v/v)at 5000 rpm for 10 min,using a homogenise(IKA,Labortechnik,Selangor,Malaysia).The filtrate obtained through Whatman No.1 filter paper was evaporated at 55°C in a water bath and then dried at 105°C to constant weight. 多謝指教。! |
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木蟲 (著名寫手)

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