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Novus試劑在取用上一定要遵守以下規則
發布時間： 2020-03-18 點擊次數： 1126次Novus生物試劑是指有關生命科學研究的生物材料或有機化合物，以及臨床診斷、醫學研究用的試劑。由于生命科學面廣、發展快，因此該類試劑品種繁多、性質復雜。主要有電泳試劑、色譜試劑、離心分離試劑、免疫試劑、標記試劑、組織化學試劑、透變劑和致癌物質、殺蟲劑、培養劑、緩沖劑、電鏡試劑、蛋白質和核酸沉淀劑、縮合劑、超濾膜、臨床診斷試劑、染色劑、抗氧化劑、防霉劑、去垢劑和表面活性劑、生化標準品試劑、生化質控品試劑、分離材料等等。Novus試劑的取用規則：固體粉末試劑可用潔凈的牛角勺取用。要取一定量的固體時，可把固體放在紙上或表面皿上在臺秤上稱量。要準確稱量時，則用稱量瓶在天平上進行稱量。液體試劑常用量筒量取，量筒的容量為：5mL、10mL、50mL、500mL等數種，使用時要把量取的液體注入量筒中，使視線與量筒內液體凹面的低處保持水平，然后讀出量筒上的刻度，即得液體的體積。如需少量液體試劑則可用滴管取用，取用時應注意不要將滴管碰到或插入接收容器的壁上或里面。為了達到準確的實驗結果，取用試劑時應遵守以下規則，以保證試劑不受污染和不變質：1、試劑不能與手接觸。2、要用潔凈的藥勺，量筒或滴管取用試劑，不準用同一種工具同時連續取用多種試劑。取完一種試劑后，應將工具洗凈（藥勺要擦干）后，方可取用另一種試劑。3、試劑取用后一定要將瓶塞蓋緊，不可放錯瓶蓋和滴管，絕不允許張冠李戴，用完后將瓶放回原處。4、已取出的試劑不能再放回原試劑瓶內。另外取用試劑時應本著節約精神，盡可能少用，這樣既便于操作和仔細觀察現象，又能得到較好的實驗結果。- 下一篇：Novus試劑的四種常用規格說明
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