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琼脂培养基的分装,通常是将漏斗安放于铁架台上,从漏斗上灌入培养基,在下口用试管接装。这种方法操作不便,效率低,试管口易被培养基沾污,气温低时,培养基还容易在漏斗管和乳胶管内凝固。用下图装置,可克服以上缺点。图中a、b为内径0.5cm的玻璃管。a管长约40cm,在15cm处用火焰弯曲使其成“η”形,短的一段末端用火焰拉细,留一小孔;b管长约15cm,根据需要,可直可
Dispense the agar medium usually by placing the funnel on a turret, pouring the medium from the funnel, and then attaching it to the cuff in the lower port. This method is inconvenient to operate, inefficient, test tube mouth easily contaminated by the medium, the temperature is low, the medium is easy to coagulate in the funnel and latex tube. With the device below, you can overcome the above shortcomings. Figure a, b for the inner diameter of 0.5cm glass tube. a pipe length of about 40cm, at 15cm with a curved flame to make it “η” shape, a short end of the flame with a fine, leaving a small hole; b tube length of about 15cm, according to need, can be straight