大家知道移液管和吸量管一般采用橡皮冼耳球来吸取溶液,中学化学在中和滴定实验中用到,大学的定量分析实验中经常使用,学生在移取溶液时由于左、右手操作不协调,往往造成移液反复进行,浪费时间,现向大家介绍一种改进的吸球,操作方便,成功率离,有实用价值。如图1所示。 As we all know, pipettes and pipettes generally use rubber cymbals to suck the solution. Middle school chemistry is used in neutralization titration experiments. University quantitative analysis experiments are often used. Students take left and right hands when removing solutions. Uncoordinated, often causing repeated pipetting, wasting time. Now we introduce to you an improved suction ball, convenient operation, success rate, practical value. As shown in Figure 1.